MEMS Optical Power Regulator

10 ms rise/fall, low loss, bidirectional, polarization insensitive, multimode fibers
  • Compact
  • Low Cost
  • High Reliability
  • Low IL, PDL, WDL and TDL
  • Low Power Consumption


Click 'Spec Sheet' for available configurations/part#


The optical power regulator is a module that maintains a constant output power, regardless of the input fluctuations. This is achieved by using a detector to tap a small amount of light from the output and feed into a close-loop circuit to control a MEMS variable fiber optical attenuator connected between light input and output. The regulation output power range is set by the two pots on the board and can be preset according to customer spec. The module can also compensate slow polarization dependent loss changes and fast optical power surges. The optical power regulator provides an ultimate solution for optical power stabilizing and limiting. device is designed for over 20 years continuous operation.  The unit comes with a wall-plug 12V power supply.


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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.