MEMS Ultra-Mini Fiber Optical Variable Attenuator

  • High Reliability
  • Direct DC drive
  • Ultra Small
  • ESD Insensitive

Click 'Spec Sheet' for available configurations/part#


The MEMS U-Mini Reflective Series Fiber Optical Variable Attenuator uses a patented thermal activated micro-mirror, moving-in and -out optical paths, uniquely featuring large extinction ratio, high stability over wide temperature range, and very long life cycle.  The thermal MEMS is insensitive to moisture and ESD without drift issues, providing a high reliability platform for over 25 years continuous operation. The MEMS Straight Series VOAs are configured in single and dual channels (activated at the same time).  The VOAs are bidirectional and are Telcordia standards GR1221 qualified.

Agiltron provides customized design and modular assemblies to meet control and integration applications.


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 MEMS U-Mini Reflective VOA        Min Typical Max Unit
Operation Wavelength Single Mode                       1260~1620 nm
Multimode          810-890, 1260-1360, 1500-1600
Insertion Loss [1], [2]      0.6 1.0 / 1.2 [3] dB
PDL (Single mode) 0.1 dB
Extinction Ratio            PM           18 dB
Return Loss SM, PM           50 dB
Multimode           35
Attenuation SM, PM           55 [4] dB
Multimode           45 dB
Response Time       3  7 ms
Repetition Rate                                                         20           Hz
Durability            1012 Cycle
Power Consumption (at maximum)                                                        170 mW
Operating Temperature [4]             -5  +70 oC
Storage Temperature            -40  +85 oC
Optical Power Handling (CW)    300  500 mW
Package Dimension                       8.9L x 3.5W x 5H mm
Fiber Type Single Mode                     SMF-28 or equivalent
PM                    Panda 250 PM or equivalent
Multimode           MM 50/125, MM 62.5/125 or equivalent

[1]. Excluding connectors.

[2]. Multimode IL measured @ Light Source CPR < 14dB.

[3]. Dual band.

[4]. Lower temperature version is available, please call us.