Fiber Optic Rotary Joints

FO285

Single Channel FORJ

The FO285 (single-pass singlemode) is passive and bidirectional, and allows the transfer of optical signals across rotational interfaces.

With a body diameter of only 9.5 mm and length 26 mm the FO285 unit is ideally suited to applications where size and weight are critical issues. An extremely cost effective solution for high data rate signals, it also offers other benefits of fiber optics, including low spark hazard and immunity to electromagnetic interference.

The FO285 can be combined with our electrical and fluid slip rings, and with our entire line of video and data multiplexers to provide a complete solution.

Features

  • Provides rotary coupling for a singlemode fiber link
  • Passive bidirectional device
  • Low cost, small size
  • Can be combined with our electrical slips and fluid unions
  • Alternative drive coupling and mounting arrangements are available (consult factory for specification details)
  • Can be integrated into existing slip ring designs
  • Stainless steel or aluminum construction
  • Rugged design
    • MIL-STD-167-1 ship vibration
    • MIL-STD-810F functional shock (40 g)
  • 90° fiber exits available for limited space requirements

FO285 Specifications

  • Fiber Size (Microns)

    9 / 125 SMF-28 (consult factory for other sizes)

  • Insertion Loss (Typical)

    < 1.5 dB

  • Insertion Loss (Maximum)

    < 3.5 dB

  • Rotation Variation (Typical)

    < 0.5 dB

  • Rotation Variation (Maximum)

    < 1.5 dB

  • Back Reflection*

    Typical 22 dB | 18 dB Minimum

  • Wavelength

    1310 / 1550 nm (consult factory for other wavelengths)

  • Dimensions

    9.5 mm diameter x 26 mm length

  • Weight/Material

    Stainless steel: 16 g (pigtailed with connectors)

  • Rotational Speeds

    To 1000 rpm. Higher rotational speeds should be discussed with the factory.

  • Temperature

    -55° to +75° C. Consult factory for extended range.

  • Vibration

    Tested to MIL-STD-167-1 (ships)

  • Shock

    Tested to MIL-STD-810F

  • Terminations

    Pigtailed with cable and connectors to meet customer's requirements; 900 micron buffered cable standard

  • Pigtail Length

    As required

*35 dB minimum back reflection option available for FO285.

Typical Applications

  • Unmanned ground vehicles
  • Robots
  • Surveillance systems
  • Industrial automation
  • Unmanned aerial vehicles and sub-systems

FO285 Technical Data Sheet

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