Fiber Optic VOA In-Line Attenuator

Fiber Optic VOA In-Line Attenuator

Fiber Optic Variable in-line optical attenuators comprises a dual fiber collimator and a reflection component separated by a linear moveable ND filter. They are used to permit dynamic control of optical power levels in a fiber and can be applied to adjust power level of signal in the optical communication at the output of light sources, E/O converters and for the linear or dynamic range of power meter.



  • LAN
  • Telecommunication network system
  • CATV System
  • Digital Multimedia transmission System


  • High quality ceramic core& In-line structure
  • Customized connector LC C/SC/FC/ST four kinds fiber connectorfor your choice & Easy to use
  • Collimator-based manually variable attenuationfrom  0dB to 60dB
  • Environmental protection PVC materials

Technical Details:

Fiber Connector LC/SC/FC/ST Ferrule Type Zirconia Ceramic
Cable Diameter 3.0mm or 2mm Transfer Mode SM or MM
Attenuation 0~60dB Operating Wavelength(nm) 1310~1550(SM)/850~1300(MM)
Attenuation Accuracy ±0.8dB Minimize Insertion Loss <2.5dB
Polarization Dependent Loss ≤0.2dB Max Optical Input Power 200mW
Humidity 95%RH Cable Jacket PVC or LSZH
Storage Temperature Range -40 to 85°C (-40 to 185°F) Operating Temperature Range -40 to 80°C (-40 to 176°F)

Related Projects