etmems TM Variable Optical Attenuator Integrated With Input Tap (voltage control) (US patent 8,666,218 and other patents pending) Features VOA + Tap Compact Size Low Cost High Reliability Low IL, PDL, WDL and TDL Direct Drive Applications Power Control Power Regulation Channel Balance Instrumentation Revision: 4-22-15 Product Description The etmems TM Series VOA is based on a micro-electro-mechanical mechanism featuring integrated compact design, simple construction, easy direct drive, and excellent optical performance of ultra low insertion loss, low PDL, and broad wavelength operation range. The MM series VOA is compliant with the Telcordia 129 and 1221 reliability standards. The MM series VOA is available in either normally-open or normally-closed configurations and with an integrated input tap option. The VOA is driven by applying an electrical voltage Performance Specifications etmems TM Series TVOA Min Typical Max Unit Wavelength 126 155 162 nm Insertion Loss [1].5.8 db Polarization Dependent Loss [2].15.5 db Wavelength Dependence Loss [3],[4].4.7 db Attenuation Range 25 3 55 db Attenuation Resolution Continuous Extinction Ratio (PM only) 18 23 25 db Polarization Mode Dispersion.1.5 ps Return Loss 45 db Response Time 3 6 ms Driving Voltage [5] 4.5 5.2 [7] V Device Resistance 81 1 Ω Optical Power handling 3 5 mw Tap Response @ 155nm 12 15 4 ma/w Tap directivity N/A or 25 db Tap Wavelength Dependence Response [6].1.13.2 db/nm Tap Polarization Dependence Response.2.1.25 db Tap Temperature Dependence Response.1 db/ C Tap Dark Current at 5V bias @ 23 C.2 1 na Tap Dark Current at 5V bias @ 7 C 3 7 na Tap 3dB Bandwidth (cutoff frequency) 1 MHz Tap Capacitance 12 pf Operating Temperature -5 75 o C Storage Temperature -4 85 o C Reliability Telcordia 129 and 1221 Package Dimension Φ6.1 X 35.2 mm Notes: [1].Without connector and at room temperature [2].At 2dB or less attenuation [3].At 2dB attenuation and at whole temperature range [4].Within 4nm Bandwidth [5].At 2dB attenuation for transparent version, at.8db attenuation for opaque version. [6].This is related to tap ratio. The spec data is regarding 3% tap. [7].Over this value will damage the device. 15 Presidential Way, Woburn MA 181 Tel: (781) 935-12 Fax: (781) 935-24
etmems TM Variable Optical Attenuator Integrated With Input Tap (voltage control) Mechanical Footprint Dimensions (Unit:mm) Ordering Information MMOA- Type Wavelength Off State Package Fiber Fiber Length Connector Input tap voltage control=21 131 = 3 155 = 5 C+L=2 126~162=8 Special = Transparent=1 Opaque=2 Standard =1 With directivity=2 Special = SMF-28 =1 Panda4=4 Panda25=5 Special = Bare fiber=1 9um tube =3 Special=.25m= 1.5m = 2 1.m= 3 Special = None = 1 FC/PC = 2 FC/APC = 3 SC/PC = 4 SC/APC = 5 ST/PC = 6 LC = 7 Special = 15 Presidential Way, Woburn MA 181 Tel: (781) 935-12 Fax: (781) 935-24
etmems TM VOA Typical Performance Charts (1) VOA Performance (tested with open-loop) Attenuation vs Drive Votage 35 3 ) 25 2 15 1 5 Performance Specification 1 2 3 4 5 6 Voltage(V) Agiltron MEMS VOA A-V curve (Normally opaque) 45 4 35 3 25 2 15 1.2.4.6.8 5 1 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 3 3.2 3.4 3.6 3.8 4 4.2 Driving voltage (V) PDL vs Attenuation.5.4 PDL (db).3.2.1 1 2 3 4 5 15 Presidential Way, Woburn MA 181 Tel: (781) 935-12 Fax: (781) 935-24
1 12 14 16 18 2 22 24 26 28 etmems TM VOA Typical Performance Charts (2) VOA Performance 25 Temperature Dependence 2 15 1 5 'C 23'C 7'C Temperature 1 Temperature Cycles (-4C~+85C) 25 2 15 1 5 2 4 6 8-5 Driving current (ma) Before TC After 1 cycles Change 11dB point drift 11.5 11.4 11.3 11.2 11.1 11 1.99 1.98 1.97 1.96 7 12 17 22 27 32 37 69 84 117 147 178 28 238 268 IL change 11dB point change 2dB point change Attenuation readout (db) Time (Min) 15 Presidential Way, Woburn MA 181 Tel: (781) 935-12 Fax: (781) 935-24
etmems TM VOA Typical Performance Charts (3) VOA Performance 15 Presidential Way, Woburn MA 181 Tel: (781) 935-12 Fax: (781) 935-24
etmems TM VOA Typical Tap Performance Charts (1) Tap vs Input Power (dbm) -5-4 -3-2 -1 1 2-1 Tap (db) y =.9965x - 15.529 R 2 = 1-2 -3-4 Performance Specification -5 Input Power (dbm) -6 Tap vs Input Linear (Tap vs Input) Tap (db) -16.4-16.45-16.5-16.55-16.6 Tap vs Attenuation 1 2 3 y =.7x - 16.58 Tap vs Attn. Linear (Tap vs Attn.) 15 Presidential Way, Woburn MA 181 Tel: (781) 935-12 Fax: (781) 935-24
etmems TM VOA Typical Tap Performance Charts (2) PDR vs Attenuation.2 PDR (db).15.1.5 PDR Poly. (PDR) 5 1 15 2 25 3 Input Type TVOA Tap vs Temperature Tap (db) -15.6-2 -15.8 2 4 6 8-15.1 y =.13x - 15.16-15.12-15.14-15.16-15.18-15.2 Temperature ('C) db attn. 2dB attn Linear (2dB attn) 15 Presidential Way, Woburn MA 181 Tel: (781) 935-12 Fax: (781) 935-24
etmems TM VOA Typical Tap Performance Charts (3) 15 Presidential Way, Woburn MA 181 Tel: (781) 935-12 Fax: (781) 935-24