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81570A Variable Optical Attenuator Module with Straight Interface

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Starting From US$ 8,608

Typical Configuration  

Typical Configuration

81570A Opt attenuator high power, straight

  • R-51B-001-C Return to Keysight Warranty - 1 year


Prices for: United States

* Prices are subject to change without notice. Prices shown are Manufacturer's Suggested Retail Prices (MSRP). Prices shown are exclusive of taxes.

Key Features & Specifications

  • High Input Power Level: 2W
  • Wavelength Flatness: < 0.05dB
  • High Attenuation Accuracy < 0.1dB
  • Repeatability < 10mdB


The Keysight 81570A variable optical attenuator 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.


  • Low Signal Distortion due to low PDL, PMD, CD
  • Wavelength Flatness: < 0.05dB
  • Wide Wavelength Range: 1200nm to 1700nm (SM)
  • Built-in Shutter for Power Meter Zeroing
  • Built-in Calibration Capability


  • The high optical performance enables testing of transmission systems and components with minimal impact on the input signal.
  • Unique combination of optical performance parameters gives you the flexibility to use and reuse the modular attenuator in different setups and applications.
  • 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.