Komponenter for optiske nettverk

Transcription

1 Komponenter for optiske nettverk Dag Roar Hjelme Institutt for elektronikk og telekommunikasjon, NTNU Institutt for elektrofag og fornybar energi, HiST

2 The Evolution Of Transmission-System Performance - State-of-the-art Laboratory Demonstrations - Enabling technologies Low loss fiber Solid state sources Opitcal amplifer Wavelength division multiplexing technology Dispersion management Forward error correction Coherent system technology Digital signal prosessing > Space division multiplexing E. Desurvire et.al., Science and technology challenges in XXIst century optical communications, Comptes Rendus Phys., vol. 12, no. 4, pp , 2011.

3 Transmitter and Receiver Technologies Wavelength specific lasers Amplitude modulation - Direct detection Advanced modulation formats Coherent detection

4 InP Transmitter Technology ECOC 2014: 1700 functions/chip (Infinera) F. Kish et.al., From visible light-emitting diodes to large-scale iii-v photonic integrated circuits, Proc. IEEE, vol. 101, no. 10, pp , 2013.

5 100 Gb/s PIC Based On OOK 10 channels on a 200 GHz grid S. Murthy et.al, Large-scale photonic integrated circuit transmitters with monolithically integrated semiconductor optical amplifiers, in Proc. Opt. Fiber Commun. Conf., Mar. 2008, OTuN1.

6 500 Gb/s PIC Based On Coherent Phase Modulation F. Kish et.al., From visible light-emitting diodes to large-scale iii-v photonic integrated circuits, Proc. IEEE, vol. 101, no. 10, pp , 2013.

7 Coherent Optical Reciever and Digital Signal Processing 100Gbps fully integrated dual polarization coherent receiver Phase and polarization diversity optical circuit J. C. Rasmussen et.al, Digital Coherent Receiver Technology for 100-Gb/s Optical Transport Systems, vol. 46, no. 1, pp , 2010.

8 Wavelength-Division Multiplexers Bulk optics Fiber optics Integrated optics - AWG

9 Arrayed Waveguide Grating Technologies Silica mature technology, large footprint Si 3 N 4 high performance Si low cost in large volumes (like CMOS) InP integration with sources/amplifiers 9

10 Ultra-Compact Silicon Photonic GHz ArrayedWaveguide Grating Router S. Cheung et.al., Ultra-Compact Silicon Photonics 512x GHz Arrayed Waveguide Grating Router, vol. 20, no. 4, 2014.

11 Wavelength-Selective Switch Key building block in optical add-drop multilexers Reconfigurable OADM Optical cross connect

12 Reconfigurable Optical Add-Drop Multiplexer - ROADM 2D ROADM Colorless Directionless ROADM Building blocks: Mux/demux AWG Wavelength selective switch - WSS Fujitsu, CD ROADM Fact or Fiction Part 2 : Flexibility at a Price

13 Wavelength-Selective Switch Free- Space Optics and MEMS or LCOS LCOS based MEMS based J. et. al. Tsai, Open-Loop Operation of MEMS-Based 1 N Wavelenght Selective, vol. 16, no. 4, pp , 2004.

14 Wavelength-Selective Switch in Silicon Photonics 1 x 2 WSS with 32 wavelengths on 100 GHz grid Gratiing coupler C. R. Doerr et.al, Switch in Silicon Photonics, J. Light. Technol., vol. 30, no. 4, pp , WSS chip size is 3.0 x 5.5 mm

15 Space Division Multiplexing Many spatial modes can be supported within SMF volume (125 micron) Multi-core vs multi-mode fibers Disentangle coupled modes using MIMO technologies (coherent systems)

16 Space-Division Multiplexing R.-J. Essiambre et.al., Breakthroughs in Photonics 2012: Space-Division Multiplexing in Multimode and Multicore Fibers for High-Capacity Optical Communication, IEEE Photonics J., vol. 5, no. 2, pp , 2013.

17 Trench-assisted multicore fiber - Weakly-Coupled Cores - 30 core fiber core-to-core distance of 29.7 µm, the cladding diameter of 228 µm K. Saitoh and S. Matsuo, Multicore Fiber Technology, J. Light. Technol., vol. 8724, no. JANUARY, pp. 1 1, 2016.

18 Hole-Assisted Few-Mode Multicore Fiber - Low Intercore Crosstalk Tb/s = 5.1 Tb/s x 50, 50 WDM channels Seven-core FM-MCF with an outer diameter of 192 µm (±0.5 µm) 3 modes/core (21 spatial modes) R. G. H. van Uden et.al. Ultra-high-density spatial division multiplexing with a few-mode multicore fibre, Nat. Photonics, vol. 8, no. 11, pp , 2014.

19 Multi-Core Amplifiers K. S. Abedin et.al. Multicore Erbium Doped Fiber Amplifiers for Space Division Multiplexing Systems, J. Light. Technol., vol. 32, no. 16, pp , 2014.

20 Few-Mode Optical Amplifiers Y. Jung et.al., Reconfigurable modal gain control of a few-mode EDFA supporting six spatial modes, IEEE Photonics Technol. Lett., vol. 26, no. 11, pp , 2014.

21 Space Division Multiplexer Technologies Photonic lantern 3D Waveguide Multiplexer S. G. Leon-saval, A. Argyros, and J. Bland-hawthorn, Photonic Lantern. R. G. H. van Uden et.al. Ultra-high-density spatial division multiplexing with a few-mode multicore fibre, Nat. Photonics, vol. 8, no. 11, pp , 2014.

22 Silicon Photonic Integrated Mode Multiplexer For Few-Mode Fiber A. M. J. Koonen et.al., Silicon photonic integrated mode multiplexer and demultiplexer, IEEE Photonics Technol. Lett., vol. 24, no. 21, pp , 2012.

23 Space-Division Multiplexing P. Sillard, Next-Generation Fibers for Space-Division-Multiplexed Transmissions, vol. 33, no. 5, pp , 2015.

24 State-of-the-art - transmission capacity and distance K. Saitoh and S. Matsuo, Multicore Fiber Technology, J. Light. Technol., vol. 8724, no. JANUARY, pp. 1 1, 2016.

25 New Transmission Window Hollow core photonic bandgap fibers have ultra low non-linearity Minimum loss shifted to longer wavelength

26 Transmisjon ved 2 µm (mid-ir) i hullkjerne fotonisk krystall fiber 2 µm = tapsminimum i HC- PBGF TDFA =Thulium doped fiber amplifiers 8 Gb/s over 290 m M. N. Petrovich et.al., Demonstration of amplified data transmission at 2 µm in a low-loss wide bandwidth hollow core photonic bandgap fiber, Opt. Express, vol. 21, no. 23, p , 2013.

27 Fiber Optics For Data Centers And Consumer Applications Data rates steadily increasing Driven by different requirements Data center applications Short developement cycles No standardization Consumer applications Low cost Robustness

28 Penetration Of Optical Fiber At Increasingly Short Distances R. J. Essiambre and R. W. Tkach, Capacity trends and limits of optical communication networks, Proc. IEEE, vol. 100, no. 5, pp , M. Charbonneau-Lefort and M. J. Yadlowsky, Optical Cables for Consumer Applications, J. Light. Technol., vol. 33, no. 4, pp , 2015.

29 Optical Interconnect Technology For Next Generation Data Centers E. Mentovich, Mellanox Technologies, ECOC 2015

30 Silicon photonics for 100 Gb/s E. Mentovich, Mellanox Technologies, ECOC 2015

31 Optical Components For Consumer Applications VSDN cable Corning s VSDN fibe Optical engine in the USB 3.0 connector 5 Gb/s M. Charbonneau-Lefort and M. J. Yadlowsky, Optical Cables for Consumer Applications, J. Light. Technol., vol. 33, no. 4, pp , 2015.

32 Summary Transmission technology Current coherent technology approaching the physical limit Space division multiplexing, next generation fiber optics Innovative solution needed to allow performance enhancement at low cost Network technology High performance technolgy available at premium cost Advances in photonic integrated circuits in InP and Silicon are promissing Penetration of optical fiber technology New drivers for developements of photonic technologies Data centers and consumer applications 32

33 WDM Networking Network elements OADM 2D ROADM nd ROADM