Manual Optical Delay Line

Manual Optical Delay Line

The VDL-002 family of manual variable optical delay lines are small, shorter range delay lines that allow a user to adjust the delay to a desired position and then lock it in place.

Product Description

The VDL-002 is a fiber coupled delay line with the delay adjustment path in free space. The delay is adjusted by manually turning a screw on one end of the device, and position is read from a scale on the side. The device includes a locking screw to lock the position setting. It is enclosed in a sturdy, water-resistant enclosure.

The delay line is available with either single mode or PM fiber pigtails.

  • Key Features
    • Compact
    • Sturdy, water-resistant enclosure
    • Position locking mechanism
  • Specifications
    Center wavelengths (λ c )

    SM, single pass: 1310/1550 dual window, 1060, or 840nm

    SM, double pass: 1310 or 1550nm
    PM, single pass: 1310, 1550, 1060, or 840nm

    Wavelength range λc ±50nm
    Optical delay range

    Single-pass: 100 ps (3 cm) or 250 ps (7.5 cm)

    Double-pass: 200 ps or 500 ps

    Zero point delay offset 180 ps, (excluding caps, boots, and fiber pigtails)
    IL 1.0 dB nominal
    IL variation over delay range ±0.3 dB

    For full specifications, please download the data sheet.

  • Documentation

Solutions and Applications

The VDL-002 is designed for OEM applications that require short-range optical path adjustment to find an optimal position and then lock it in place. Applications include optical coherence tomography (OCT) systems, test equipment, and network modules.

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