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OB1 | Variable Backreflector

The OB1 variable backreflector enables precise backreflection control and superior repeatability. It can be used as a benchtop or rackmount instrument.

The OB1 is ideal for lab and production applications including transceiver testing, QA testing, laser production and automated test systems.

The OB1 variable backreflector offers +/- 0.02dB repeatability and a range of 60dB in single-mode and 35 dB in multimode. The OB1 can be controlled via the front panel touch screen, or remotely via USB & Ethernet.

The OB1 series variable backreflectors operate from 1200-1700 for singlemode and 750-1700 for multimode. A 50/50 coupler can be added to monitor the input signal without reflections.


  • Transeiver Testing
  • QA testing
  • Laser Production

Key Features

  • ± 0.2 dB Relative Accuracy
  • ± 0.02 dB Repeatability
  • 60 dB Range
  • Available in Single-mode or Multimode

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