etMEMS™ Ultra Mini Variable Optical Attenuator

The etMEMS™ Series VOA is based on a proprietary micro-electro-mechanical mechanism featuring compact design, high reliability, and excellent optical performance. The VOA is compliant with the Telcordia 1209 and 1221 reliability standards.

The VOA is available in either normally-open or normally-closed configurations. The VOA is driven by applying an electrical voltage.

  • Compact
  • Low Cost
  • High Reliability
  • Low IL, PDL, WDL and TDL
  • Low Power Consumption


  • Power Control
  • Power Regulate
  • Channel Balance
  • Instrumentation


MM Series VOAMinTypicalMaxUnit
Central Wavelength  1310±50 / 1480±50  / 1550±50nm
Insertion Loss[1]0.50.8dB
Attenuation Range2530dB
Polarization Dependent Loss@10dB0.150.3dB
Wavelength Dependent Loss@10dB0.20.4dB
Temperature Dependent Loss[2]@10dB0.40.7dB
Attenuation ResolutionContinuous
Polarization Mode Dispersion0.010.05ps
Return Loss45dB
Response Time36ms
Driving Voltage at 10 dB attenuation3V
Driving Voltage at 30 dB attenuation55.2[3]V
Device Resistance100ohm
Power Consumption[4]80130mW
Optical Power Handling300500mW
Operating Temperature-575oC
Storage Temperature-4085oC
Reliability          Telcordia 1209 and 1221
Fiber TypeCorning SMF28 or equivalent
Package DimensionSee drawing belowmm
1.    Excluding connectors
2.   Reference to room temperature
3.   Over this value will damage the device
4.   For full dynamic range.