Fibre Optic Attenuators

Optical Attenuators

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Device Types

We carry a wide range of singlemode inline high power endurance optical attenuators. These are manufactured using fused fibre technology giving high performance without the use of filters, air gaps or core mis-matching.

FC, SC, LC and MU styles are available with return loss (back-reflectance) to PC, UPC and APC standards and attenuation from1dB to 25dB. We can also supply variable singlemode attenuators, in wide and narrow range versions.

Multimode attenuators are also available in various styles including ST - please contact us with your specific requirements.


  • 1240-1600nm bandwidth
  • Up to 200mW power endurance
  • Polarisation dependent loss <= 0.2dB
  • Wide temperature range –20C to +70C
  • Low back-reflectance <-50dB (UPC range)
  • Strict quality-control procedures to ISO9001.
  • 100% optical testing.
  • Individual Serial numbers and test results.
  • Digital Automated Interferometer checks of end-face geometry.
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