RFOptic’s RFoF 40.0GHz high-frequency Optical Delay Line (ODL) series for bands up to Ka provides a high-performance solution for testing and calibration of radar systems or for latency testing and qualifying RF communication equipment. The Optical Delay Line (ODL) provides a true time delay of wideband RF signals using low-loss optical fiber. The Input RF signal is converted to an optical signal, delayed by one or more single-mode optical fiber sections, and is converted back into RF signal at the output.

RFOptic’s Mini ODL solution, offered in a compact, robust enclosure, is recommended when only a few short delays of up to 15 μsec are required.

Key Features

  • Delays 1 nanosec to 500 μsec or more
  • Supports Frequencies – From DC to Ka
  • Delay Accuracy <0.5%
  • Customized Solution
  • Excellent Phase Noise
  • Displays Delay, Round-trip Distance, Range, and Altitude
  • High Dynamic Range
  • USB API for Automatic Testing


  • Single Delay ODL
  • Multi Delay ODL
  • Progressive Variable ODL forming up to 4,096 delay combinations
  • Bidirectional ODL
  • Multipath ODL
  • Mini ODL up to 34 up to 18GHz μsec)


  • Radar Calibration Testing
  • Signal and Phase Noise Processing
  • Extension of Radar Range Site
  • Clutter Canceler
  • EW Systems
  • Altimeter


To find a distributor In your area, visit the Contact Us page.
Click on the relevant orange dot on the map, which will show the local RFOptic distributor’s contact details. For our North American subsidiary, click on the blue dot on the US map. The other blue dot shows our HQ. For a list of RFOptic’s distributors, you can click here.