Fixed Fiber Optic Attenuators

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Product Code: Fixed Fiber Optic Attenuators




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Oxin Fixed Fiber Optic Attenuators are built with metal-ion doped optical fiber and are designed to provide consistent attenuation levels as well as maintaining polarization characteristics. Typical application for a fixed fiber optic attenuator is to reduce the amount of optical power by a specific amount as to not saturate a receiver which can limit a system’s performance. They also can be used to test the linearity and dynamic range of photo sensors and photo detectors in test and measurement applications.

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Features & Benefits:

  • Low back reflection, insertion loss
  • Low polarization dependent loss (PDL)
  • Environmentally stable
  • Contaminant and scratch free ferrule
  • Multimode attenuators available upon request
  • Available attenuation from 1 dB to 30 dB
  • 100% tested in factory
  • Manufactured with metal-ion doped optical fiber


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  • Receiver padding
  • CATV, LAN, telecommunications
  • Test and instrument
  • Optical power equalization
  • WDM and DWDM systems channel balancing
  • Optical transmission systems

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Ordering Information Description Part Number
Fixed Fiber Optic Attenuator OXIN-FAT-XXXXXX-XX
Packaging Description
Clear poly bag, 1unit per bag
Optical Performance Parameter Value
Operating band pass 1250 nm ~ 1625 nm
Center wavelength 1310 nm and 1550 nm
Attenuation tolerance 1 ~ 10 dB : ±0.5 dB
11 ~ 15 dB : ±5% of the nominal value
Return loss UPC ≤-55 dB
Return loss APC ≤-65 dB
PDL ≤0.1 dB
Physical Characteristics Parameter Value
Fiber material Metal-ion doped optical fiber
Plastic material UL 94V-0 ABS high-impact thermoplastic
Mechanical Characteristics Parameter Value
Operating temperature -40 ~ 75°C
Storage temperature -40 ~ 75°C

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Fiber Optic Attenuator Data sheet