FO310

FIBER OPTIC ROTARY JOINT


The FO310 is a sealed single-channel fiber optic rotary joint (FORJ) which is factory configured to transfer optical signals over either singlemode or multimode fiber. The FO310 supports both analog and digital optical signals, and is especially suited for sensitive single-pass optical sensing applications where optical insertion loss and back reflection must be minimized.

The FO310 FORJ has a stainless steel housing and is environmentally sealed to an ingress protection rating of IP67. It can be combined with Moog electrical and / or fluid slip rings, providing a single, complete package for optical signals, electrical power, and fluid transfer over a rotating interface.

This FORJ is assembled with either bulkhead connectors or fiber pigtails and connectors to suit the application. Housing, mounting flange, and drive features can be customized to meet specific customer requirements.

Features

  • Passive bidirectional optical transmission
  • Low optical insertion loss for common sensor wavelengths
  • High return loss (i.e. low back reflection) available
  • Provides rotary coupling for either a singlemode or multimode fiber link with the same footprint
  • Can be combined with Moog electrical slip rings and fluid unions
  • Can be integrated into existing slip ring designs
  • Rugged design with IP 67 rating, MIL-STD-167-1 Ships vibration and MIL-STD-810 functional shock (40g)
  • Bulkhead connector and Pigtailed versions available

Benefits

  • Low back reflection and insertion losses allow for FORJ integration with very sensitive optical sensor measurement systems
  • Environmentally sealed design allows for long-life in rugged installations and reduces maintenance costs
  • Supports either singlemode or multimode fiber, allowing future upgrade without modifying the surrounding mechanical infrastructure
FO310 Specifications
  Singlemode Multimode
Fiber Size (Microns) 9 / 125 Singlemode
50 / 125 or 62.5 / 125 Multimode
Insertion Loss Typical < 1.0 dB, Maximum < 1.5 dB
Typical < 1.0 dB, Maximum <1.5 dB
Rotation Variation Typical < 0.5 dB, Maximum < 1.0 dB
Typical < 0.5 dB, Maximum < 1.0 dB
Back Reflection Minimum 55 dB Minimum 30 dB
(Typical 32 dB)
Wavelength Options Suitable for operation over full CWDM band (18 wavelengths from 1271 nm to 1611 nm in 20 nm increments), tested at 1310 nm and/or 1550 nm. Consult factory for other wavelengths such as 900-1100 nm band (tested at 1060 nm)
Suitable for operation in 850 nm and 1300 nm multimode bands or 1300 nm and 1550 nm multimode bands. Consult factory for other wavelengths such as 900-1100 nm band (tested at 1060 nm)
Rotational Speeds To 100 rpm. For other requirements contact factory
To 100 rpm. For other requirements contact factory
Temperature -40°C to +85°C -40°C to +85°C
Exterior Surfaces Stainless Steel Stainless Steel
Ingress Protection IP67 IP67
Vibration Per MIL-STD-167-1A
Per MIL-STD-167-1A
Shock 40 g / 11 ms sawtooth per MIL-STD-810 Method 516
40 g / 11 ms sawtooth per MIL-STD-810 Method 516
Terminations Bulkhead or Pigtailed with ST, FC / PC, or FC / APC connectors to meet customer requirements. FC / APC required to achieve extended back reflection specifications
Bulkhead or Pigtailed with ST, FC / PC, or FC / APC connectors to meet customer requirements. FC / APC required to achieve extended back reflection specifications
Pigtail Length Up to 3 meters standard. Consult factory for longer lengths
Up to 3 meters standard. Consult factory for longer lengths

Contact Us

Technical Support

Telephone:  +1-902-468-2263

Typical Applications

  • Winches and cable reels for optical sensor systems
    • Distributed Temperature Sensing (DTS)
    • Temperature Point Sensor Arrays (TPSA) using Fiber Bragg Gratin (FBG)
  • Distributed Acoustic Sensing (DAS)
  • Pitch control data and/or fiber-optic blade sensing for wind turbines
  • Sensor systems for helicopter rotor blades
  • Optical Coherence Tomography (OCT)