Variable Optical Attenuator

ADAMANT's MEMS (Micro Electro Mechanical System) Variable Optical Attenuators (VOAs) are designed for latest optical network systems with providing low insertion loss, wide attenuation range, flat wavelength dependence and low polarization dependence loss. The operating voltage only needs less than 5V for driving up to maximum attenuation range. The VOA has our original robust structure MEMS chip which is patented design. It never happen pull in effect and sticking the mirror during operation. The MEMS chip is hermetic sealed in the metal package by our perfect welding technology to provide high reliability.


  • Original patented MEMS structure (US 7535620)
  • Ultra High Speed response time (Typ. 0.4 ms)
  • Low Operating Voltage(5 V)
  • Low Insertion Loss
  • Flat WDL and Low PDL
  • Compact package
  • Available in both Bright and Dark configuration
  • Excellent operating vibrationand shock performance
  • Qualified to TelcordiaGR-1221
  • RoHSCompliant
  • Customized flexibility (Multimode, Wavelength)


  • OADM and Mux / DeMux
  • Optical power controller and equalizer
  • Amplifier gain control
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MEMS (Micro Electro Mechanical Systems)
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