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Optical Delay Line / Components

IDIL Fibres Optiques provides a wide range of tunable optical delay lines.

Optical Delay Line summary

Manual optical delay lines tunability depends on a micrometric screw which allows a higher than 0.1 picoseconds resolution. In fact, we propose a tunability that ranges between a few picoseconds to hundred of picoseconds, according to the running of the translation stage.

The translation stage can be motorized with a precision better than 1 µm and easily controlled by a computer via an USB interface.

The delay line can provide precision optical path variation of more than 50 mm.

Furthermore, packaging dimensions vary in accordance with customers’ requirements regarding delay values.

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    Features
    • High resolution < 0.1 ps
    • Low insertion Loss < 1 dB
    • High delay and loss stability
    Applications
    • Telecommunications
    • Fiber optic instrumentation
    • Interferometric sensors
    • Coherent detection systems
    • Optical Fourrier spectrum analysis
    • Optical Time Division multiplexing (OTDM)
    Specifications
    ODL
    CUSTOM ODLODL 25ODL 50
    Travel rangeUpon request25 mm50 mm
    Travel mechanismManual or motorizedManual micrometerManual micrometer
    Delay rangeFrom 1 ps to hundred ps80 ps150 ps
    Delay resolutionDepend of the total delay1.6 ps per turn1.6 ps per turn
    Resolution< 0.1 ps< 0.1 ps< 0.1 ps
    WavelengthUV; IR; VisibleUV; IR; VisibleUV; IR; Visible
    Max. Insertion loss< 1 dB, < 2.5 dB (delay range dependant)< 1 dB< 2.5 dB
    Loss variation over travelDepend on the total travel≤ 1 dB≤ 1 dB
    Return loss45 dB (typical)≥ 45 dB≥ 45 dB
    Fiber typeSMF; PMF ; MMF
    ConnectorsFC; LC; SC; SMA; ST; MU; E2000; other
    Buffer900 µm or 2.8 mm
    Dimensions30 x 80 x 70 mm³ (with a 50 ps delay)100 x 81.4 x 40 mm³280 x 200 x 76 mm³
    PackagingSlot, rack, patch cordSlot, rack, patch cordSlot, rack, patch cord
    Operating temperatureFrom -5°C to +65°CFrom -5°C to +65°CFrom -5°C to +65°C
    Storage temperatureFrom -40°C to +85°CFrom -40°C to +85°CFrom -40°C to +85°C
    Optical power handlingUpon requestUpon requestUpon request
    Control mode (motorized)USB, PC interface//

    Contents (motorized ODL): User guide, calibration data, USB cable, power supply, integrated collimator, input and output fiber

    How it works

    Fiber Optic Delay Lines (ODL) consist of controlling the delay through the device by varying the distance the light travels between the input and the output fiber collimator. IDIL expertise in single-pass ODL allows a higher than 0.1 ps resolution compared to other supplier. Double-pass are available on request.

    All products