The Keysight 81578A variable optical attenuator is designed for multimode fiber applications and features lowest insertion loss and excellent wavelength flatness over a complete attenuation range of 60 dB, for characterizing optical network components for telecomunication and data communication in systems.


Key specification, Features:

  • Attenuation Range: 0dB to 60dB
  • High Input Power Level: 2W
  • Wide Wavelength Range: 700nm to 1400nm (MM)
  • Built-in Shutter for Power Meter Zeroing
  • Built-in Calibration Capability


  • The integrated shutter protects test equipment and simplifies referencing and power meter zeroing without changes in the setup.
  • Enhanced internal calibration feature reduces uncertainties and speeds up calibration in multi wavelength applications.



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Standard Configurations

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