L Band Optical Delay Lines

Optical Delay Line by RFOptic

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The L Band Optical Delay Lines from RFOptic operates from 0.1 to 2.5 GHz. They have a delay range of 0.001 - 500 µsec with a delay accuracy of 0.5%. These optical delay lines can handle a maximum input power of 20 dBm and a VSWR of 2.1 with a switching time of 10 ms. They have phase noise of -130 dBc/Hz and spurious levels of -80 dBm. These ODLs provide a true-time delay of wideband RF signals using low-loss optical fiber. They can be controlled via a USB interface and can be configured to form up to 4096 delays using up to 12 predefined time delay values.

The L Band Optical Delay Lines support a single delay ODL configuration and the control & monitoring are implemented using software, a navigation switch, and an LCD display, or through a USB connection. These ODLs require an AC supply of 110/220 V and are available in a 19-inch rack-mounted package that measures 440 x 500 x 133 mm. They can be connected via SMA RF connectors or FC/APC fiber connectors and are ideal for radar calibration testing, signal and phase noise processing, extension of radar range site, clutter canceler, EW systems, and altimeter applications.

Product Specifications

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Product Details

  • Part Number
    L Band Optical Delay Lines
  • Manufacturer
  • Description
    0.1 to 2.5 GHz, Optical Delay Lines for Radar Calibration Testing


  • Applications
    Radar Calibration testing, Signal and Phase Noise processing, Extension of radar range site, Clutter Canceler, EW systems, Altimeter

General Parameters

  • Operating Wavelength
    1565 to 1625 nm
  • Configuration
    Fiber Coupled (with Front Panel Control)
  • Delay Range
    0.001 to 500 µsec
  • Package Type
  • Delay Accuracy
  • Frequency
    0.1 to 2.5 GHz
  • Type
  • Interface
    USB, SMA
  • Delay Repeatability
  • Delay Steps
    Up to 4096
  • Dimensions
    440 x 500 x 133 mm
  • Dynamic Range(Spurious free)
    105 dB/Hz
  • Gain Flatness
    ±2.5 dB
  • Input Impedance
    50 Ohms
  • Input VSWR
  • Maximum Input
    20 dBm
  • Output Impedance
    50 Ohms
  • Output VSWR
  • P1dB
    15 dB
  • Phase Noise
    -130 dBc/Hz
  • Spurious
    -80 dBm
  • Switching Time
    10 ms


  • Operating Temperature display
    0 to 60 Degree C
  • Storage Temperature
    -45 to 85 Degree C

Fiber Parameters

  • Fiber Connectors
  • Fiber Type
    Single Mode

Technical Documents

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