Fiber Optic Rotary Joints

FO206

Single Channel FORJ

The FO206 is a single-pass, singlemode fiber optic rotary joint (FORJ). It is passive and bidirectional, and allows the transfer of optical signals across rotational interfaces.

The FORJ maintains the full benefit of fiber optics end-to-end in digital and analog transmission to and from rotating equipment. These benefits include high bandwidth and immunity to most forms of EMI.

The FO206 can be combined with our electrical and fluid slip rings, providing a single, compact package for optical signals, electrical power and fluid transfer. Most of the external features on the FO206 can be modified to meet the customer’s custom requirements.

Features

  • Provides rotary coupling for a singlemode fiber link
  • Passive bidirectional device
  • Can be combined with our electrical slips and fluid unions
  • Connectorized interfaces, for easy fiber cable replacement
  • Customized mounting flanges available
  • Optional fluid-filled version for deep submergence to 10,000 psi (69,000 kPa)
  • Can be integrated into existing slip ring designs
  • Stainless steel housing
  • Rugged design
    • MIL-STD-167-1 ship vibration
    • MIL-STD-810D functional shock (40 g)

FO206 Specifications

  • Fiber Size (Microns)

    9/125 SMF-28. Consult factory for other SM fiber types

  • Insertion Loss (Typical)

    < 1.5dB

  • Insertion Loss (Maximum)

    < 3.5 dB

  • Rotation Variation (Typical)

    < 0.5 dB

  • Rotation Variation (Maximum)

    < 1.0 dB

  • Back Reflection (Standard)

    Typical 22 dB | 18 dB Minimum

  • Back Reflection (Optional)

    Typical 40 dB | 35 dB Minimum

  • Wavelengths

    1310 and/or 1550 nm. Consult factory for other wavelength applications

  • Rotational Speeds

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

  • Temperature

    -40° to +60° C (dry version); -20° to +60° C (wet version). Consult factory for extended range.

  • Dispersion

    < 50 fs/nm (calculated)

  • Exterior Surfaces

    Stainless steel

  • Vibration

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

  • Shock

    Tested to MIL-STD-810D

  • Terminations

    Standard is with FC/PC connector receptacles at each end. Alternative connectors types available dependant on configuration (ST, FC/APC). Pigtails can be supplied with cable and connectors to meet customer’s requirements.

  • Pressure

    Up to 10,000 psi (69,000 kPa) for fluid filled version*

  • Pigtail Length

    As required

*Fluid filled version is slightly larger than shown below.

Typical Applications

  • Vehicle turrets
  • Industrial machine tools
  • Undersea telemetry
  • Radar antennas
  • Cable reels
  • Robotics

FO206 Technical Data Sheet

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