Optical Delay Line

The Optical Delay Line (ODL) provides true time delay of wideband RF signals using a 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. From the perspective of the RF signal, the ODL looks like a long distance wideband RF link with minimum loss and distortion. In its simplest form the ODL system has only one fixed delay section which is always engaged.

RFOptic offers 2 types of Optical Delay Line solutions

Optical Delay Line (ODL)

Optical Delay Line

Progressive Optical Delay Line has an optical switching arrangement that is capable of cascading a number of fiber sections to deliver a range of many discrete delays.

RFoF optical delay line is a cost effective standalone solution when one or few discrete delay lines are required


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Optical Delay Line solutions are used for testing and calibrating:

  • Radars
  • Altimeters
  • Flight Simulators
  • Any equipment that measures distance, altitudes

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  • Unity Gain
  • Automatic Gain Control
  • Dispersion Compensation
  • Ability to add external delay line for future growth (Investment Protection)
  • Fixed or Variable Delay
  • Bypass
  • Attenuator