MEMS Multimode VOA with Input Tap Monitor

  • VOA + Tap
  • Compact Size
  • Low Cost
  • High Reliability
  • Low IL, PDL, WDL and TDL
  • Direct Drive

Click 'Spec Sheet' for available configurations/part#


The MEMS 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 MEMS Series VOA is compliant with the Telcordia 1209 and 1221 reliability standards. The MEMS 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.


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etMEMSTM Series TVOA Min Typical Max Unit
 Wavelength                                                              700          850         1000 nm
 Insertion Loss[1] 0.6 1.0 dB
 Modes Dependent Loss[2] 0.2 0.5 dB
 Wavelength Dependence Loss[3],[4] 0.4 0.7 dB
 Attenuation Range 25 30 35 dB
 Attenuation Resolution Continuous
 Return Loss 20 25 dB
 Response Time 3 6 ms
 Driving Voltage[5] 4.5 5.2[7] V
 Device Resistance 80 100 W
 Optical Power handling 150 mW
 Tap Response @ 850nm 5 10 15 mA/W
Tap directivity N/A or 20 dB
 Tap Wavelength Dependence Response[6] 0.01 0.02 0.04 dB/nm
 Tap Temperature Dependence Response 0.1 dB/°C
 Tap Dark Current For PD 5 nA
 Tap Dark Current For APD 0.05 nA
 Tap 3dB Bandwidth (cutoff frequency) 1 MHz
 Tap Capacitance (PD) 1.5 pF
Tap Capacitance (APD) 15 pF
 Operating Temperature -5 75 oC
 Storage Temperature -40 85 oC
 Reliability Telcordia 1209 and 1221
 Package Dimension F6.1 X 35.2 mm



[1].Without connector and measured by light source CPR<14 dB.

[2].At 0dB attenuation

[3].At 0dB attenuation and at whole temperature range

[4].Within 40nm Bandwidth

[5].At 20dB attenuation for transparent version, at 0.8dB 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.