MEMS Ultra Mini Variable Optical Attenuator

(world smallest, Φ 3.5mm, 1260-1620nm)
  • Compact
  • Low Cost
  • High Reliability
  • Low IL, PDL, WDL and TDL
  • Low Power Consumption




The MEMS 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.


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MM Series VOA Min Typical Max Unit
Central Wavelength   1310±50 / 1480±50  / 1550±50 nm
Insertion Loss[1] 0.5 0.8 dB
Attenuation Range 25 30 dB
Polarization Dependent Loss @10dB 0.15 0.3 dB
@20dB 0.25 0.5 dB
Wavelength Dependent Loss @10dB 0.2 0.4 dB
@20dB 0.4 0.7 dB
Temperature Dependent Loss[2] @10dB 0.4 0.7 dB
@20dB 0.8 1.2 dB
Attenuation Resolution Continuous
Polarization Mode Dispersion 0.01 0.05 ps
Return Loss 45 dB
Repeatability 0.1 dB
Response Time 3 6 ms
Driving Voltage at 10 dB attenuation 3 V
Driving Voltage at 30 dB attenuation 5 5.2[3] V
Device Resistance 100 ohm
Power Consumption[4] 80 130 mW
Optical Power Handling 300 500 mW
Operating Temperature -5 75 oC
Storage Temperature -40 85 oC
Reliability           Telcordia 1209 and 1221
Fiber Type Corning SMF28 or equivalent
Package Dimension See drawing below mm
1.    Excluding connectors
2.   Reference to room temperature
3.   Over this value will damage the device
4.   For full dynamic range.