Wavelength-Parallel Pulse Generation and Equalization Technologies

Save this PDF as:
 WORD  PNG  TXT  JPG

Size: px
Start display at page:

Download "Wavelength-Parallel Pulse Generation and Equalization Technologies"

Transcription

1 Wavelength-Parallel Pulse Generation and Equalization Technologies Andrew M. Weiner Purdue University Funding:

2 Outline Femtosecond pulse shaping: a core technology Optical equalizer technologies Chromatic dispersion compensation Femtosecond pulses WDM (1 Gb/s) Polarization-mode dispersion (PMD) compensation (& monitoring) Spectral line-by-line pulse shaping and waveform generation Putting combs and pulse shaping together

3 Femtosecond Pulse Shaping Typical spectral resolution: 1s or 1s of GHz Fourier synthesis via parallel spatial/spectral modulation Diverse applications: fiber communications, coherent quantum control, few cycle optical pulse compression, nonlinear microscopy, RF photonics Liquid crystal modulator (LCM) arrays: Typically 128 pixels (up to 64), millisecond response Functionalities: phase-only, independent phase and intensity, polarization A.M. Weiner, Rev. Sci. Instr. 71, 1929 (2)

4 Reflective Pulse Shaper Collimator Grating Mirror LCM Lens Reduced size & component count Insertion loss as low as ~4 db (including circulator!) R.D. Nelson, D.E. Leaird, and A.M. Weiner, Optics Express (23)

5 Programmable Fiber Dispersion Compensation Pushing the short pulse limits of fiber transmission Spectral phase equalizer Coarse dispersion compensation using matched lengths of SMF and DCF Fine-tuning and higher-order dispersion compensation using a pulse shaper as a programmable spectral phase equalizer Similar ideas apply to dispersion compensation in femtosecond amplifiers and few-cycle pulse generation ( ) τω= ψ( ω) ω

6 Higher-Order Phase Equalization Using LCM Input and output pulses from 3-km SMF-DCF-DSF link Input pulse Output pulse (without phase correction) already compressed several hundred times Output pulse (with quadratic & cubic correction) Chang, Sardesai, and Weiner, Opt. Lett. 23, 283 (1998) No remaining distortion! Applied phase

7 Intensity cross-correlation (a.u.) 46 fs transmission over 5 km SMF Commercial DCF module with spectral phase equalizer without DC by pulse shaper second-order DC by pulse shaper both second- and thirdorder DC by pulse shaper Time (ps) ~ 5 ns after SMF 13.9 ps after DCF 47 fs after quadratic/cubic phase equalization Phase (rad) π π (A) (B) Pixel # Essentially distortionless Z. Jiang, Leaird, and Weiner, Opt. Lett. 3, 1449 (25).

8 Virtually Imaged Phased Array (VIPA) Extending Pulse Shaping/Processing to Individual WDM Channels R r λ 1 λ2 λ 3 Virtual Source Array Fiber Collimator Cylindrical Lens VIPA Introduced by Shirasaki, Opt. Lett. (1996) Offers high spectral resolution, as in a Fabry-Perot But acts as spectral disperser, with large spectral dispersion arising from multiple beam interference in side-entrance etalon geometry Why? τ x k θ ω Bor et al, Opt. Commun. 59, 229 (1985)

9 8-Channel Hyperfine Demux (~7 MHz linewidth, ~3 GHz channel spacing, 5 GHz FSR) Cylindrical Lenses Cylindrical Lens Collimator (input) Receiving Fiber Array (output) Channel spacings, linewidths vary with channel number VIPA (courtesy Avanex Corp.) Xiao, Weiner, and Lin, IEEE JQE 4, 42 (24) Xiao and Weiner, IEEE PTL 17, 372 (25)

10 Tunable Dispersion Compensation for 1 Gb/s Lightwave Systems Programmable Hyperfine Resolution VIPA Pulse Shaper 1 DWDM.5 λ1 λ2 λ3 Collimator Circulator λ λ n N channel DWDM input 1.5 DWDM λ1 λ2 λ Dispersion Compensated N channel DWDM output CYL VIPA CYL ( ) τω= SLM + Mirror Apply quadratic phase ψ( ω) ω Spectral phase function repeats each free spectral range Useful for WDM G.-H. Lee, S. Xiao, and A.M. Weiner, OFC 26 (paper OTHE5); IEEE PTL 18, 1819 (26)

11 Tunable Dispersion Compensation: 1 Gb/s over 24 km Fiber VIPA hyperfine shaper: programmable quadratic phase B2B Uncompensated Compensated SMF 24km 24km SMFcompensated G.-H. Lee, S. Xiao, and A.M. Weiner, OFC 26 (paper OTHE5); IEEE PTL 18, 1819 (26)

12 Polarization Mode Dispersion (PMD) Poole and Nagel, Optical Fiber Telecom. IIIA (1997). A complicated vector distortion: Frequency-dependent polarization scrambling Frequency- and polarizationdependent delays 1 st Order PMD τ Propagation Model Poole and Giles, Opt. Lett. 13, 155 (1988) All-Order PMD

13 All-Order PMD Compensation Scheme (1) Distorted pulse (vector field) Sense & correct the output field Align output polarizations Scalar field Equalize spectral phase Restored pulse State-of-polarization shaper Phase shaper (~ 6 fs pulse width) (~ 1.4 ps mean DGD) (155 nm center wavelength) New sensor New LCM configuration M. Akbulut, et al, Opt. Lett. 29, 1129 (24); Opt. Lett. 3, 2691 (25); OFC 25 (post-deadline)

14 All-Order PMD Compensator: First Demonstration! PMD Distorted SOP Spectrum Corrected SOP Spectrum 6 fs input pulse through PMD emulator (16 section PM fiber, mean DGD ~1.5 ps) SOP = state of polarization Input Pulse (575.7 fs) PMD Distorted Pulse After SOP correction Recovered Pulse (63.8 fs) Time (ps) Time (ps) Time (ps) M. Akbulut, et al, Opt. Lett. 29, 1129 (24); Opt. Lett. 3, 2691 (25); J. Lightwave Tech. 24, 251 (26) Time (ps)

15 All-Order PMD Compensation Scheme (2) Sense & correct the frequency-dependent Jones matrix New 4-layer LCM Sensing requires only spectral polarimetry, plus polarization switching Insensitive to drift of input polarization (unlike earlier scheme) Scheme is more robust, allows compensation of larger distortions H. Miao, A.M. Weiner, P.J. Miller, L. Mirkin, Opt. Lett. (in press, 27)

16 All-Order PMD Compensation Scheme (2) Sense & correct the frequency-dependent Jones matrix 826 fs Two representative data sets ~5.5 ps DGD >1 ps distortion 811 fs H. Miao, A.M. Weiner, P.J. Miller, L. Mirkin, Opt. Lett. (in press, 27)

17 Fast Wavelength Parallel Polarization Sensor Application to PMD sensing and compensation 1D configuration: 256 nm (5 GHz) channel spacing, <1 ms read-out time, < 3 polarization error High resolution 2D configuration: GHz channel spacing (<2 db crosstalk), 5 ms readout time (potential) (1D or 2D) First in class performance, in terms of speed and wavelength parallelism 152 nm nm Wang et al, Opt. Lett. 29, 923 (24); Opt. Exp. 13, 9374 (25); Wang et al, OFC (25,26)

18 Sensing in the Lab and in the Field with AT&T AT&T laboratory test-bed: PMD stress testing of 16 km commercial (Nortel) WDM system Live traffic in secure AT&T central office Record strings vs. time Spectral polarimeter Helped identify source of instability Seek to identify correlation between string length and system impairment -spectral polarimetry as a tool for optical performance monitoring State-of-polarization strings (1 GHz bandwidth) String length Wang, Weiner, Boroditsky et al, OFC (26), IEEE PTL 18, 1753 (26), J. Lightwave Tech. (26)

19 Spectral Line-by-Line Pulse Shaping Shaping: group of lines f rep Frequency domain Shaping: individual lines f rep Μ f rep frequency frequency 1/(Μ f rep ) Repetition period (1/f rep ) Time domain Overlapped regime 1/f rep 1/f rep time 1/f rep 1/f rep time Conventional pulse shaping: isolated, low duty factor waveforms Line-by-line spectral filtering: overlapped, 1% duty factor waveforms Sensitive to frequency shifts, pulse-to-pulse phase

20 Fluctuations of Comb-Offset Frequency δ Harmonically mode-locked fiber laser Φ Φ Spectral lines fluctuate 8.5 GHz Wavelength (nm) 1.5 GHz Wavelength (nm) Comb-offset frequency δ fluctuates 2πδ = Φ f rep Phase between pulses Φ fluctuates π π Overlapped regime fluctuates Time (ps) Time (ps) Input pulse positions Time Stabilized frequency comb is required for line-by-line pulse shaping Self-referenced high-rep-rate mode-locked lasers have not been available Z. Jiang et al, Opt. Lett. 3, 1557 (25)

21 Shaping at the 1 Line Level Phase-Modulated CW Comb (tunable) Adiabatic soliton compression Z. Jiang, Huang, Leaird, and Weiner, Nature Photonics (1 Aug 27)

22 Shaping at the 1 Line Level Spectral Intensity Control a #1 Spectra #18 Intensity Cross-correlations 1.65 ps 2 ps Intensity (a. u.) (Linear scale) b Intensity (a. u.) Wavelength (nm) Time (ps) Alternate comb lines excised yields doubling of repetition rate

23 Shaping at the 1 Line Level Spectral Phase Control Intensity (a.u.) T/5 Delay 2T/5 3T/5 4T/ Time (ps) -2 Z. Jiang, Huang, Leaird, and Weiner, Nature Photonics (1 Aug 27) Applying linear spectral phase yields temporal delay ( ) τω= ψ( ω) ω

24 Complex Optical Arbitrary Waveform Generation a b c Intensity (a.u.) Intensity (a.u.) Time (ps) Measurement Calculation Measurement Calculation -1 Time (ps) -5 15π Time (ps) Linear plus cubic phase examples Measurement and calculation agree closely: high fidelity waveforms! Unwrapped phase (rad) d 15π 2π Spectral phase function Wrapped phase (rad) π Wavelength (nm) Z. Jiang, Huang, Leaird, and Weiner, Nature Photonics (1 Aug 27)

25 Summary Parallel, high-speed optical signal processing via time-space-frequency transformations and ultrafast Fourier optics Applications to linear equalizers for chromatic dispersion and PMD Spectral line-by-line pulse shaping: bringing pulse shaping and combs together Thanks to Mehmet Akbulut Robin Huang Zhi Jiang Dan Leaird Ghang-Ho Lee Houxun Miao Shawn Wang Li Xu Peter Miller (CRI) Leo Mirkin (CRI) Chris Lin (Avanex) Misha Boroditsky (AT&) Misha Brodsky (AT&T)

Pulse Shaping and Control of Optical and RF Phase

Pulse Shaping and Control of Optical and RF Phase Pulse Shaping and Control of Optical and RF Phase Andrew M. Weiner Purdue University amw@purdue.edu http://ece.www.ecn.purdue.edu/~amw Support from ARO, DARPA, NSF Outline Ultrafast optical pulse shaping:

More information

Spectral Line-by-Line Pulse Shaping

Spectral Line-by-Line Pulse Shaping Spectral Line-by-Line Pulse Shaping A.M. Weiner*, Z. Jiang, D.E. Leaird, C.-B. Huang, and J. Caraquitena Purdue University amw@purdue.edu http://ece.www.ecn.purdue.edu/~amw ecn purdue edu/ * On sabbatical

More information

Optical Spectral Processing / All-Order PMD Technology: Compensation, Sensing, Emulation

Optical Spectral Processing / All-Order PMD Technology: Compensation, Sensing, Emulation PMD Compensation at Ultra-High Bit Rates or Optical Spectral Processing / All-Order PMD Technology: Compensation, Sensing, Emulation A.M. Weiner Purdue University amw@ecn.purdue.edu http://ece.www.ecn.purdue.edu/~amw

More information

Wavelength-Parallel Polarization Sensor for Multi-Wavelength Optical Networks

Wavelength-Parallel Polarization Sensor for Multi-Wavelength Optical Networks Wavelength-Parallel Polarization Sensor for Multi-Wavelength Optical Networks Xiang (Shawn) Wang wang7@ecn.purdue.edu Andrew M. Weiner amw@ecn.purdue.edu Purdue University, West Lafayette, IN 47907 This

More information

Shaping Ultrafast Laser Fields for Photonic Signal Processing

Shaping Ultrafast Laser Fields for Photonic Signal Processing Shaping Ultrafast Laser Fields for Photonic Signal Processing Andrew M. Weiner Purdue University Gavriel Salvendy International Symposium on Frontiers in Industrial Engineering, May 5, 2012 ECE 616 Ultrafast

More information

CHARACTERIZATION OF POLARIZATION-MODE DISPERSION ON BURIED STANDARD SINGLE- MODE FIBERS

CHARACTERIZATION OF POLARIZATION-MODE DISPERSION ON BURIED STANDARD SINGLE- MODE FIBERS CHARACTERIZATION OF POLARIZATION-MODE DISPERSION ON BURIED STANDARD SINGLE- MODE FIBERS Pradeep Kumar Kondamuri Committee: Dr. Chris Allen (Chair) Dr. Ron Hui Dr. Jim Stiles OVERVIEW Introduction PMD concepts

More information

Lecture 27: Ultrafast Pulse Shaping

Lecture 27: Ultrafast Pulse Shaping ECE-616: Fall 2011 Lecture 27: Ultrafast Pulse Shaping Professor Andrew Weiner Electrical and Computer Engineering Purdue University, West Lafayette, IN USA 11/22/11 Lundstrom ECE-656 F11 1 Ultrafast Pulse

More information

Interferometric Dispersion Measurements

Interferometric Dispersion Measurements Application Note 2004-022A Interferometric Dispersion Measurements Overview This application note describes how the dbm 2355 Dispersion Measurement Module operates. Summary There are two primary methods

More information

THE virtually imaged phased array (VIPA) was introduced

THE virtually imaged phased array (VIPA) was introduced 420 IEEE JOURNAL OF QUANTUM ELECTRONICS, VOL. 40, NO. 4, APRIL 2004 A Dispersion Law for Virtually Imaged Phased-Array Spectral Dispersers Based on Paraxial Wave Theory Shijun Xiao, Student Member, IEEE,

More information

Polarization mode dispersion spectrum measurement via high-speed wavelength-parallel polarimetry

Polarization mode dispersion spectrum measurement via high-speed wavelength-parallel polarimetry Polarization mode dispersion spectrum measurement via high-speed wavelength-parallel polarimetry Li Xu,, * Shawn X. Wang,, Houxun Miao,,3 and Andrew M. Weiner Department of Electrical and Computer Engineering,

More information

Ultrafast Pulse Shaping and Applications

Ultrafast Pulse Shaping and Applications Ultrafast Pulse Shaping and Applications Andrew M. Weiner Purdue University http://ece.www.ecn.purdue.edu/~amw CLEO, May 2010 Fourier Transform Pulse Shaping: Outline Pulse shaping basics Results from

More information

Chalmers Publication Library

Chalmers Publication Library Chalmers Publication Library High-repetition-rate optical frequency comb technology for ultra-broadband radiofrequency photonics This document has been downloaded from Chalmers Publication Library (CPL).

More information

Optical frequency comb generator using optical fiber loops with single-sideband modulation

Optical frequency comb generator using optical fiber loops with single-sideband modulation Optical frequency comb generator using optical fiber loops with single-sideband modulation Tetsuya KAWANISHI, a) Takahide SAKAMOTO, Satoshi SHINADA, and Masayuki IZUTSU National Institute of Information

More information

Interferometric Measurement of Dispersion in Optical Components

Interferometric Measurement of Dispersion in Optical Components Interferometric Measurement of Dispersion in Optical Components Mark Froggatt, Eric Moore, and Matthew Wolfe Luna Technologies, Incorporated, 293-A Commerce Street, Blacksburg, Virginia 246 froggattm@lunatechnologies.com.

More information

Improving Chromatic Dispersion and PMD Measurement Accuracy

Improving Chromatic Dispersion and PMD Measurement Accuracy Improving Chromatic Dispersion and PMD Measurement Accuracy White Paper Michael Kelly Agilent Technologies Signal transmission over optical fibers relies on preserving the waveform from transmitter to

More information

VNA Basics. VNA Basics Errors and Calibration Examples. Spectrum Analyzer

VNA Basics. VNA Basics Errors and Calibration Examples. Spectrum Analyzer 2 Spectrum Spectrum 1 Measures S-parameters of a Device Under Test (DUT) For further reading: Agilent application note Network Basics, available at wwwagilentcom Spectrum 4 Motivation: Why Measure Amplitude?

More information

Fiber-based components

Fiber-based components Fiber-based components by: Khanh Kieu (02/26/2016) Traditional optics Optical elements are used to split/combine, filter, focus, amplify, attenuate light Ti:sapphire laser Fiber components Fiber splitter

More information

Ultrastable mode-locked fiber lasers and their application to optical comb delivery through optical fiber networks

Ultrastable mode-locked fiber lasers and their application to optical comb delivery through optical fiber networks NMIJ-BIPM Workshop in Tsukuba 25 Ultrastable mode-locked fiber lasers and their application to optical comb delivery through optical fiber networks Masataka Nakazawa Research Institute of Electrical Communication

More information

Dispersion in Optical Fibers

Dispersion in Optical Fibers Dispersion in Optical Fibers By Gildas Chauvel Anritsu Corporation TABLE OF CONTENTS Introduction Chromatic Dispersion (CD): Definition and Origin; Limit and Compensation; and Measurement Methods Polarization

More information

Scalable Frequency Generation from Single Optical Wave

Scalable Frequency Generation from Single Optical Wave Scalable Frequency Generation from Single Optical Wave S. Radic Jacobs School Of Engineering Qualcomm Institute University of California San Diego - Motivation - Bandwidth Engineering - Noise Inhibition

More information

Agilent 86038B Photonic Dispersion and Loss Analyzer Fast and Accurate Spectral Analysis

Agilent 86038B Photonic Dispersion and Loss Analyzer Fast and Accurate Spectral Analysis Agilent 86038B Photonic Dispersion and Loss Analyzer Fast and Accurate Spectral Analysis Technical Specifications January 2007 Simultaneous measurements of: Group Delay (GD), Optical Phase, Chromatic Dispersion

More information

The Fiber Laser Advantage

The Fiber Laser Advantage The Fiber Laser Advantage White Paper PN 200-0200-00 Revision 1.1 January 2009 Calmar Laser, Inc www.calmarlaser.com Overview With the fiber optics revolution for telecommunications in the 1980s, fiber

More information

Analysis of Four Wave Mixing Effect at Different Channel Spacing in DWDM Systems Using EDFA with Single Pump Source

Analysis of Four Wave Mixing Effect at Different Channel Spacing in DWDM Systems Using EDFA with Single Pump Source Analysis of Four Wave Mixing Effect at Different Channel Spacing in DWDM Systems Using EDFA with Single Pump Source Narinder Singh 1, Ashok K. Goel 2 1Department of Electronics and Communication Engineering,

More information

Modulation Formats for High-Speed, Long-Haul Fiber Optic Communication Systems

Modulation Formats for High-Speed, Long-Haul Fiber Optic Communication Systems Modulation Formats for High-Speed, Long-Haul Fiber Optic Communication Systems Anjali Singh, Ph.D. Inphi Corporation, 2393 Townsgate Rd #101, Westlake Village, CA 91361 1. Introduction The goal of an optical

More information

Photonics Components Modeled in CODE V

Photonics Components Modeled in CODE V White Paper Photonics Components Modeled in CODE V November 214 Authors Craig Pansing CODE V Application Engineer Bryan Stone CODE V Principal R&D Engineer CODE V is a comprehensive program for optical

More information

Pulsewidth and noise properties of external-cavity mode-locked semiconductor lasers:

Pulsewidth and noise properties of external-cavity mode-locked semiconductor lasers: Pulsewidth and noise properties of external-cavity mode-locked semiconductor lasers: Simulations and experiments Josep Mulet IMEDEA (CSIC-UIB), Palma de Mallorca, Spain Center COM, Technical University

More information

Four Wave Mixing in Closely Spaced DWDM Optical Channels

Four Wave Mixing in Closely Spaced DWDM Optical Channels 544 VOL. 1, NO. 2, AUGUST 2006 Four Wave Mixing in Closely Spaced DWDM Optical Channels Moncef Tayahi *, Sivakumar Lanka, and Banmali Rawat Advanced Photonics Research lab, Department of Electrical Engineering

More information

Limiting factors in fiber optic transmissions

Limiting factors in fiber optic transmissions Limiting factors in fiber optic transmissions Sergiusz Patela, Dr Sc Room I/48, Th. 13:00-16:20, Fri. 9:20-10:50 sergiusz.patela@pwr.wroc.pl eportal.pwr.wroc.pl Copying and processing permitted for noncommercial

More information

Polarization in Fiber Systems: Squeezing out More Bandwidth. Steve Yao General Photonics Corp.

Polarization in Fiber Systems: Squeezing out More Bandwidth. Steve Yao General Photonics Corp. : Squeezing out More Bandwidth Steve Yao General Photonics Corp. To appease the demand for bandwidth telecommunication operators are pushed to increase the per-channel data rate of wavelength division

More information

Amplification Atomic (or molecular, or semiconductor) system has energy levels Some higher energy states are stable for a short time (ps to ms)

Amplification Atomic (or molecular, or semiconductor) system has energy levels Some higher energy states are stable for a short time (ps to ms) Part 5: Lasers Amplification Atomic (or molecular, or semiconductor) system has energy levels Some higher energy states are stable for a short time (ps to ms) Incident photon can trigger emission of an

More information

Programmable Femtosecond Pulse Shaping

Programmable Femtosecond Pulse Shaping Programmable Femtosecond Pulse Shaping Andrew M. Weiner Purdue University School of Electrical and Computer Engineering West Lafayette, IN 47907-1285 Phone: (765) 494-5574 Fax: (765) 494-6951 E-mail: amw@ecn.purdue.edu

More information

Simulative Analysis of 40 Gbps DWDM System under the Impact of Channel Spacing

Simulative Analysis of 40 Gbps DWDM System under the Impact of Channel Spacing , pp.119-126 http://dx.doi.org/10.14257/ijsip.2015.8.11.12 Simulative Analysis of 40 Gbps DWDM System under the Impact of Channel Spacing Karanjot Singh *, Jyotsana and Jyoteesh Malhotra Department of

More information

High Capacity Optical Fiber Link Design For Telecommunication Backbone Network

High Capacity Optical Fiber Link Design For Telecommunication Backbone Network High Capacity Optical Fiber Link Design For Telecommunication Backbone Network Imran Khan, M. Jakub Oleszko Abstract:- Telecommunication traffic (voice, data etc.) is increasing day by day. So to meet

More information

Duobinary Modulation For Optical Systems

Duobinary Modulation For Optical Systems Introduction Duobinary Modulation For Optical Systems Hari Shanar Inphi Corporation Optical systems by and large use NRZ modulation. While NRZ modulation is suitable for long haul systems in which the

More information

UV trimming of arrayed waveguide gratings

UV trimming of arrayed waveguide gratings UV trimming of arrayed waveguide gratings Frank Knappe Technical University Hamburg-Harburg Jörg Gehler Alcatel Corporate Research Center now with Alcatel USA December 2000 Outline - Objective - Influence

More information

Berlin University of Technology. High-Frequency Engineering / Photonics

Berlin University of Technology. High-Frequency Engineering / Photonics Berlin University of Technology High-Frequency Engineering / Photonics K. Petermann petermann@tu-berlin.de Where we are located... High-Frequency Engineering. Electrical Engineering. Technical Acoustics

More information

Optical Communications Systems

Optical Communications Systems Dublin Institute of Technology School of Electronic and Communications Engineering Optical Communications Systems Dense WDM and Optical Amplification Dr. Gerald Farrell Unauthorised usage or reproduction

More information

Liquid-Crystal Optical Switches and Signal Processors

Liquid-Crystal Optical Switches and Signal Processors 21 Asia-Pacific Optical and Wireless Communications Conference, Beijing, China, November 21 Liquid-Crystal Optical Switches and Signal Processors ABSTRACT Chongchang Mao, Ming Xu, Wei Feng, Jianyu Liu,

More information

A spatially and temporally resolved sub-laser cycle electron source

A spatially and temporally resolved sub-laser cycle electron source A spatially and temporally resolved sub-laser cycle electron source Peter Hommelhoff Catherine Kealhofer Mark Kasevich Physics Department, Stanford University Ultrafast electron source Electric field sensor

More information

Challenges in DWDM System Spectral Analysis By Laurent Begin and Jim Nerschook

Challenges in DWDM System Spectral Analysis By Laurent Begin and Jim Nerschook Challenges in DWDM System Spectral Analysis By Laurent Begin and Jim Nerschook TABLE OF CONTENTS: 1.0 Satisfying the Thirst for Bandwidth 02 2.0 The Solution, DWDM 02 3.0 Resolution 04 4.0 Wavelength Accuracy

More information

Advanced Modulation Formats in Data Centre Communications Michael J. Wale Director Active Products Research

Advanced Modulation Formats in Data Centre Communications Michael J. Wale Director Active Products Research Advanced Modulation Formats in Data Centre Communications Michael J. Wale Director Active Products Research 2 nd Symposium on Optical Interconnects in Data Centres ECOC, Cannes, 23rd September 2014 1 2014

More information

Optical vector network analyzer for single-scan measurements of loss, group delay, and polarization mode dispersion

Optical vector network analyzer for single-scan measurements of loss, group delay, and polarization mode dispersion Optical vector network analyzer for single-scan measurements of loss, group delay, and polarization mode dispersion Dawn K. Gifford, Brian J. Soller, Matthew S. Wolfe, and Mark E. Froggatt We present a

More information

Agilent 8509C Lightwave Polarization Analyzer

Agilent 8509C Lightwave Polarization Analyzer Agilent 8509C Lightwave Polarization Analyzer Product Overview Highly accurate and repeatable polarization measurements of signal and components 1280 nm to 1640 nm L-Band extended wavelength option High

More information

Fast Optical Communication Components

Fast Optical Communication Components Fast Optical Communication Components Fiber optics In optical communications, fiber replaces copper coaxial cables used in wired networks Fiber optics Fiber optic telephone communication system Optical

More information

Optical DWDM Networks

Optical DWDM Networks Optical DWDM Networks Columbus, OH 43210 Jain@cse.ohio-State.Edu These slides are available at http://www.cse.ohio-state.edu/~jain/cis788-99/ 1 Overview Sparse and Dense WDM Recent WDM Records WDM Applications

More information

Making OSNR Measurements In a Modulated DWDM Signal Environment

Making OSNR Measurements In a Modulated DWDM Signal Environment Making OSNR Measurements In a Modulated DWDM Signal Environment Jack Dupre Jim Stimple Making OSNR measurements in a modulated DWDM signal environment May 2001 In a DWDM spectrum, it is desirable to measure

More information

Directly modulated CWDM/DWDM system using negative dispersion fiber for metro network application

Directly modulated CWDM/DWDM system using negative dispersion fiber for metro network application Optics Communications 245 (2005) 171 176 www.elsevier.com/locate/optcom Directly modulated /DWDM system using negative dispersion fiber for metro network application H.S. Chung, Y.C. Chung * Korea Advanced

More information

Holographically corrected telescope for high bandwidth optical communications (as appears in Applied Optics Vol. 38, No. 33, , 20 Nov.

Holographically corrected telescope for high bandwidth optical communications (as appears in Applied Optics Vol. 38, No. 33, , 20 Nov. Holographically corrected telescope for high bandwidth optical communications (as appears in Applied Optics Vol. 38, No. 33, 6833-6835, 20 Nov. 1999) Geoff Andersen and R. J. Knize Laser and Optics Research

More information

Effect of transmission fiber on DWDM Chaos Synchronization

Effect of transmission fiber on DWDM Chaos Synchronization Chapter 6 Effect of transmission fiber on DWDM Chaos Synchronization 6.1 Introduction There are very few papers on propagation of chaos thru transmission fiber and even lesser literature on the effects

More information

Chapter 8: Optical Fibers and Components

Chapter 8: Optical Fibers and Components Chapter 8: Optical Fibers and Components TOPICS WDM optical networks Light transmitted through an optical fiber Types of optical fibers Impairments Components: Lasers, optical amplifiers, couplers, OXCs

More information

Photonics for the Coherent CFP2-ACO Unlocking 100G and 200G for the Metro

Photonics for the Coherent CFP2-ACO Unlocking 100G and 200G for the Metro Photonics for the Coherent CFP2-ACO Unlocking 100G and 200G for the Metro Brandon Collings JDSU September, 2014 ECOC This communication contains forward looking product development plans based on our current

More information

10 Gb/s WDM-PON Using Downstream OFDM and Upstream OOK

10 Gb/s WDM-PON Using Downstream OFDM and Upstream OOK 10 Gb/s WDM-PON Using Downstream OFDM and Upstream OOK Jing Huang, Deming Liu & Cheng Zeng College of Optoelectronic Science and Engineering Huazhong University of Science and Technology, Wuhan 430074,

More information

Fiber Optic Passive Devices By Larry Johnson

Fiber Optic Passive Devices By Larry Johnson By Larry Johnson Since the early years of fiber optics, there has been a need to passively switch, tap, split, and multiplex optical signals. Today s technology allows designers to expand on these original

More information

Analysis and Improvement of Mach Zehnder Modulator Linearity Performance for Chirped and Tunable Optical Carriers

Analysis and Improvement of Mach Zehnder Modulator Linearity Performance for Chirped and Tunable Optical Carriers 886 JOURNAL OF LIGHTWAVE TECHNOLOGY, VOL. 20, NO. 5, MAY 2002 Analysis and Improvement of Mach Zehnder Modulator Linearity Performance for Chirped and Tunable Optical Carriers S. Dubovitsky, Member, IEEE,

More information

Georgia Tech 100G Center

Georgia Tech 100G Center Georgia Tech Industry-University 100G Networking Center Stephen E Ralph Prof of Electrical and Computer Engineering stephen.ralph@ece.gatech.edu School of Electrical and Computer Engineering Georgia Tech

More information

Product Catalog. Solutions for Fiber Optic Sensor Systems

Product Catalog. Solutions for Fiber Optic Sensor Systems Product Catalog Solutions for Fiber Optic Sensor Systems Manual Polarization Controller Do your setup require any polarization adjustment? The PLC-00x is a fiber-based polarization controller that manually

More information

44678/1n. News from Rohde & Schwarz Number 192 (2007/I)

44678/1n. News from Rohde & Schwarz Number 192 (2007/I) 44678/1n 20 R&S SMF100A Microwave Signal Generator Designed for maximum performance Signal quality, speed, and flexibility these are three key criteria by which modern signal s are assessed. To launch

More information

Passive Optical Resonators

Passive Optical Resonators Passive Optical Resonators Optical Cavities and Feedback Back mirror I 0 I 1 Laser medium with gain, G Output mirror I 3 R = 100% R < 100% I 2 Cavities are essential components of the lasers. They provide

More information

MTS/T-BERD 8000 Platform Optical Spectrum Analyzer Modules

MTS/T-BERD 8000 Platform Optical Spectrum Analyzer Modules COMMUNICATIONS TEST & MEASUREMENT SOLUTIONS MTS/T-BERD 8000 Platform Optical Spectrum Analyzer Modules MTS/T-BERD platform Key Features In-band capability for true OSNR measurements in ROADM and 40G networks

More information

Fiber Lasers Mode-Locked Due to Nonlinear Polarization Evolution: Golden Mean of Cavity Length

Fiber Lasers Mode-Locked Due to Nonlinear Polarization Evolution: Golden Mean of Cavity Length ISSN 1054-660X, Laser Physics, 2011, Vol. 21, No. 2, pp. 272 276. Pleiades Publishing, Ltd., 2011. Original Text Astro, Ltd., 2011. FIBER OPTICS Fiber Lasers Mode-Locked Due to Nonlinear Polarization Evolution:

More information

70-femtosecond Gaussian pulse generation in a dispersion-managed erbium-doped fibre laser

70-femtosecond Gaussian pulse generation in a dispersion-managed erbium-doped fibre laser Journal of Modern Optics Vol. 58, No. 7, 10 April 2011, 625 630 70-femtosecond Gaussian pulse generation in a dispersion-managed erbium-doped fibre laser Dinghuan Deng, Li Zhan*, Zhaochang Gu, Xiao Hu,

More information

A continuously tunable multi-tap complexcoefficient microwave photonic filter based on a tilted fiber Bragg grating

A continuously tunable multi-tap complexcoefficient microwave photonic filter based on a tilted fiber Bragg grating A continuously tunable multi-tap complexcoefficient microwave photonic filter based on a tilted fiber Bragg grating Hiva Shahoei and Jianping Yao * Microwave Photonics Research Laboratory, School of Electrical

More information

electro-mechanical deformable mirrors for Q-switched fiber laser systems

electro-mechanical deformable mirrors for Q-switched fiber laser systems Micro-electro electro-mechanical deformable mirrors for Q-switched Q fiber laser systems Aurelian Crunteanu, D. Bouyge, D. Sabourdy, P. Blondy, V. Couderc and A. Barthélemy Research Institute in Optical

More information

ULTRAFAST LASERS: Free electron lasers thrive from synergy with ultrafast laser systems

ULTRAFAST LASERS: Free electron lasers thrive from synergy with ultrafast laser systems Page 1 of 6 ULTRAFAST LASERS: Free electron lasers thrive from synergy with ultrafast laser systems Free electron lasers support unique time-resolved experiments over a wide range of x-ray wavelengths,

More information

PHIN. CTF3 photoinjector: RF synchronisation of the laser system. M. Petrarca, K. Elsener, V. Fedosseev, N. Lebas. CERN, Geneva, Switzerland.

PHIN. CTF3 photoinjector: RF synchronisation of the laser system. M. Petrarca, K. Elsener, V. Fedosseev, N. Lebas. CERN, Geneva, Switzerland. PHIN CTF3 photoinjector: RF synchronisation of the laser system M. Petrarca, K. Elsener, V. Fedosseev, N. Lebas CERN, Geneva, Switzerland Abstract In this report, the status of the synchronization system

More information

WITH THE 2002 decision by the Federal Communications

WITH THE 2002 decision by the Federal Communications IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 54, NO. 12, DECEMBER 2006 4247 Shaping the Power Spectrum of Ultra-Wideband Radio-Frequency Signals Jason D. McKinney, Member, IEEE, Ingrid S.

More information

Designing Fiber Optic Systems David Strachan

Designing Fiber Optic Systems David Strachan Designing Fiber Optic Systems David Strachan Everyone knows that fiber optics can carry a huge amount of data. There are more benefits to using fiber optics in broadcast applications than you might realize.

More information

Ultra-low repetition rate mode-locked fiber laser with high-energy pulses

Ultra-low repetition rate mode-locked fiber laser with high-energy pulses Ultra-low repetition rate mode-locked fiber laser with high-energy pulses Sergey Kobtsev *, Sergey Kukarin, Yurii Fedotov Laser Systems Laboratory, Novosibirsk State University,Pirigova 2, Novosibirsk,

More information

Measuring Laser Power and Energy Output

Measuring Laser Power and Energy Output Measuring Laser Power and Energy Output Introduction The most fundamental method of checking the performance of a laser is to measure its power or energy output. Laser output directly affects a laser s

More information

Tera-sample-per-second Real-time Waveform Digitizer

Tera-sample-per-second Real-time Waveform Digitizer Tera-sample-per-second Real-time Waveform Digitizer Yan Han *, Ozdal Boyraz, and Bahram Jalali Department of Electrical Engineering, University of California, Los Angeles, CA 90095. E-mails: yanhan@creol.ucf.edu,

More information

Synchronization and phase lock of two mode-locked femtosecond lasers

Synchronization and phase lock of two mode-locked femtosecond lasers Synchronization and phase lock of two mode-locked femtosecond lasers Robert K. Shelton, Long-Sheng Ma, Henry C. Kapteyn, Margaret M. Murnane, John L. Hall, and Jun Ye JILA, National Institute of Standards

More information

ALMA Memo No. 519 An alternative scheme of round-trip phase correction

ALMA Memo No. 519 An alternative scheme of round-trip phase correction ALMA Memo No. 519 An alternative scheme of round-trip phase correction Hitoshi KIUCHIa and Masoto ISHIGUROa anational Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan, hitoshi.kiuchi@nao.ac.jp,

More information

Cs 6S 1/2 4 F = 4= 7/2+1/2 F = 3 =7/2-1/2

Cs 6S 1/2 4 F = 4= 7/2+1/2 F = 3 =7/2-1/2 . 3. 1,2,. 1. 1,2,. 1,. 1,2,.,. 3 1, 2, 3 ( ) ( ) Cs 6S 1/2 4 F = 4= 7/2+1/2-4 0 4 = 181860 9,2 =52 (0,52 ), -3 0 3 F = 3 =7/2-1/2 3 = 182440 34 = 580 F g =3,4 : h -1 E 4 = 4 B (2m 4 1)GB 2 h -1 E 3 =

More information

Wavelength Division Multiplexing

Wavelength Division Multiplexing WDM Wavelength Division Multiplexing -CWDM vs DWDM- Fargo, ND 1 Agenda 1. Overview 2. Fiber Cable WDM Characteristics 3. CWDM Course WDM 4. DWDM Dense WDM 5. Applications Best Fit- Future? 6. Summary Fargo,

More information

Polarization-Induced Distortions in Optical Fiber Networks with Polarization-Mode Dispersion and Polarization-Dependent Losses

Polarization-Induced Distortions in Optical Fiber Networks with Polarization-Mode Dispersion and Polarization-Dependent Losses IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS, VOL. 6, NO. 2, MARCH/APRIL 2000 317 Polarization-Induced Distortions in Optical Fiber Networks with Polarization-Mode Dispersion and Polarization-Dependent

More information

High Power and Low Coherence Fibre-optic Source for Incoherent Photonic Signal Processing

High Power and Low Coherence Fibre-optic Source for Incoherent Photonic Signal Processing High Power and Low Coherence Fibre-optic Source for Incoherent Photonic Signal Processing Y u a n L i a n d R o b e r t A. M i n a s i a n School of Electrical and Information Engineering and APCRC University

More information

From Loss Test to Fiber Certification Fiber Characterization Today Part I: Chromatic Dispersion

From Loss Test to Fiber Certification Fiber Characterization Today Part I: Chromatic Dispersion From Loss Test to Fiber Certification Fiber Characterization Today Part I: Chromatic Dispersion White Paper Joachim Peerlings Optical Network Test Division Agilent Technologies When wavelength division

More information

A More Efficient Way to De-shelve 137 Ba +

A More Efficient Way to De-shelve 137 Ba + A More Efficient Way to De-shelve 137 Ba + Abstract: Andrea Katz Trinity University UW REU 2010 In order to increase the efficiency and reliability of de-shelving barium ions, an infrared laser beam was

More information

High-Frequency Engineering / Photonics

High-Frequency Engineering / Photonics Technische Universität Berlin High-Frequency Engineering / Photonics K. Petermann petermann@tu-berlin.de Main campus High-Frequency Engineering. Electrical Engineering. Technical Acoustics High Voltage

More information

Optical Communications Research Group Department of Electronic and Computer Engineering University of Limerick, Ireland b

Optical Communications Research Group Department of Electronic and Computer Engineering University of Limerick, Ireland b Numerical Analysis of Pulse Pedestal and Dynamic Chirp Formation on Picosecond Modelocked Laser Pulses after Propaation throuh a Semiconductor Optical Amplifier Michael J. Connelly a Aislin M. Clarke b

More information

Frequency Space Measurement of the Spectrum of a Mode-Locked Diode Laser

Frequency Space Measurement of the Spectrum of a Mode-Locked Diode Laser College of William and Mary W&M Publish College of William & Mary Undergraduate Honors Theses Theses, Dissertations, & Master Projects 5-2010 Frequency Space Measurement of the Spectrum of a Mode-Locked

More information

TO fully exploit the transmission bandwidth in dense wavelength-division

TO fully exploit the transmission bandwidth in dense wavelength-division IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS, VOL. 10, NO. 2, MARCH/APRIL 2004 387 Effective Channel Allocation to Reduce Inband FWM Crosstalk in DWDM Transmission Systems Antonella Bogoni and

More information

E4430A Digital RF Signal Generator, 250 khz to 1000 MHz (Discontinued - Support Information Only)

E4430A Digital RF Signal Generator, 250 khz to 1000 MHz (Discontinued - Support Information Only) E4430A Digital RF Signal Generator, 250 khz to 1000 MHz (Discontinued - Support Information Only) Data Sheet Frequency Specifications Frequency Range 1 Agilent ESG-D1000A: 250 khz to 1000 MHz Resolution:

More information

Constructive vs. destructive interference; Coherent vs. incoherent interference

Constructive vs. destructive interference; Coherent vs. incoherent interference Constructive vs. destructive interference; Coherent vs. incoherent interference Waves that combine in phase add up to relatively high irradiance. = Constructive interference (coherent) Waves that combine

More information

Beyond 100G. shaping tomorrow with you

Beyond 100G. shaping tomorrow with you shaping tomorrow with you Introduction Carriers face ever-increasing needs for bandwidth and capacity in their metro, regional, and long-haul optical networks due to the demands of high-speed data services,

More information

Modern Classical Optics

Modern Classical Optics Modern Classical Optics GEOFFREY BROOKER Department of Physics University of Oxford OXPORD UNIVERSITY PRESS Contents 1 Electromagnetism and basic optics 1 1.1 Introduction 1 1.2 The Maxwell equations 1

More information

Combating SRS and FWM in an Optical Fiber through Unequal Spacing and Dispersion

Combating SRS and FWM in an Optical Fiber through Unequal Spacing and Dispersion Combating SRS and FWM in an Optical Fiber through Unequal Spacing and Dispersion Sabapathi T. 1 and Nanthini Devi B. S. 2 Department of ECE, Mepco Schlenk Engineering College, Sivakasi, Tamilnadu, India.

More information

AM and high-harmonic FM laser mode locking

AM and high-harmonic FM laser mode locking AM and high-harmonic FM laser mode locking Ryan P. Scott, Corey V. Bennett, and Brian H. Kolner We demonstrate a new technique of active mode locking that combines amplitude-modulated AM mode locking at

More information

Implementation of All-Optical Logic Gate using SOA-MZI Structures

Implementation of All-Optical Logic Gate using SOA-MZI Structures ISSN: 2231-0401 www.stmjournals.com Implementation of All-Optical Logic Gate using SOA-MZI Structures Ajay Kumar, Santosh Kumar*, S. K. Raghuwanshi Photonics Laboratory, Department of Electronics Engineering,

More information

Silicon Photonic Interconnection Networks

Silicon Photonic Interconnection Networks Silicon Photonic Interconnection Networks Madeleine Glick APIC Corporation Cornell Nanophotonics Group Collaborators Abhinav Rohit, Gerald Miller, Madeleine Glick, Raj Dutt APIC Corporation Sébastien Rumley,

More information

ARCHITECTURE AND PERFORMANCE REQUIREMENTS OF OPTICAL METRO RING NODES IN IMPLEMENTING OPTICAL ADD/DROP AND PROTECTION FUNCTIONS

ARCHITECTURE AND PERFORMANCE REQUIREMENTS OF OPTICAL METRO RING NODES IN IMPLEMENTING OPTICAL ADD/DROP AND PROTECTION FUNCTIONS ARCHITECTURE AND PERFORMANCE REQUIREMENTS OF OPTICAL METRO RING NODES IN IMPLEMENTING OPTICAL ADD/DROP AND PROTECTION FUNCTIONS www.enablence.com 1. INTRODUCTION Wavelength Division Multiplexing (WDM)

More information

POLARIZATION MODE DISPERSION ANALYSIS VIA SPECTRAL POLARIMETRY AND HIGH-ORDER CORRELATIONS. A Thesis. Submitted to the Faculty.

POLARIZATION MODE DISPERSION ANALYSIS VIA SPECTRAL POLARIMETRY AND HIGH-ORDER CORRELATIONS. A Thesis. Submitted to the Faculty. POLARIZATION MODE DISPERSION ANALYSIS VIA SPECTRAL POLARIMETRY AND HIGH-ORDER CORRELATIONS A Thesis Submitted to the Faculty of Purdue University by Li Xu In Partial Fulfillment of the Requirements for

More information

Introduction to Optics

Introduction to Optics Second Edition Introduction to Optics FRANK L. PEDROTTI, S.J. Marquette University Milwaukee, Wisconsin Vatican Radio, Rome LENO S. PEDROTTI Center for Occupational Research and Development Waco, Texas

More information

Good Things Come in Small Cubes

Good Things Come in Small Cubes Page 1 Good Things Come in Small Cubes TERENA NGN Workshop: Deploying CWDM & DWDM in Research and Education Networks Sven Krüger (Dir. Sales & Marketing) Page 2 Cube Optics: Access Solution Provider Headquartered

More information

CHAPTER 5 ADDITIVE-PULSE MODE-LOCKED FIBER LASERS FORMED WITH THREE APODIZED CHIRPED FIBER GRATINGS

CHAPTER 5 ADDITIVE-PULSE MODE-LOCKED FIBER LASERS FORMED WITH THREE APODIZED CHIRPED FIBER GRATINGS CHAPTER 5 ADDITIVE-PULSE MODE-LOCKED FIBER LASERS FORMED WITH THREE APODIZED CHIRPED FIBER GRATINGS 5.1 INTRODUCTION In this chapter, we analyze the APM fiber lasers formed with three apodized chirped

More information

CHAPTER 2 LITERATURE REVIEW

CHAPTER 2 LITERATURE REVIEW CHAPTER LITERATURE REVIEW The purpose of this project is to develop a point-to-point OCDMA System for metropolitan area network application using the DW code. Based on simulation design we analyze the

More information

Acousto-optic modulator

Acousto-optic modulator 1 of 3 Acousto-optic modulator F An acousto-optic modulator (AOM), also called a Bragg cell, uses the acousto-optic effect to diffract and shift the frequency of light using sound waves (usually at radio-frequency).

More information

PIPELINE LEAKAGE DETECTION USING FIBER-OPTIC DISTRIBUTED STRAIN AND TEMPERATURE SENSORS WHITE PAPER

PIPELINE LEAKAGE DETECTION USING FIBER-OPTIC DISTRIBUTED STRAIN AND TEMPERATURE SENSORS WHITE PAPER PIPELINE LEAKAGE DETECTION USING FIBER-OPTIC DISTRIBUTED STRAIN AND TEMPERATURE SENSORS WHITE PAPER Lufan Zou and Taha Landolsi OZ Optics Limited, 219 Westbrook Road, Ottawa, ON, Canada, K0A 1L0 E-mail:

More information

Accurate Characterization of Source Spectra Using an Optical Spectrum Analyzer Application Note

Accurate Characterization of Source Spectra Using an Optical Spectrum Analyzer Application Note Accurate Characterization of Source Spectra Using an Optical Spectrum Analyzer Application Note 1550-5 2 An optical spectrum analyzer performs power versus wavelength measurements, a very useful tool for

More information

Status of the FERMI@Elettra Free Electron Laser

Status of the FERMI@Elettra Free Electron Laser Status of the FERMI@Elettra Free Electron Laser E. Allaria on behalf of the FERMI team Work partially supported by the Italian Ministry of University and Research under grants FIRB-RBAP045JF2 and FIRB-RBAP06AWK3

More information