Fiber Optic Rotary Joints

FO292

Multi-Channel FORJ

The FO292 is an ultra-compact, two pass, multimode fiber optic rotary joint (FORJ). It is passive and bidirectional, and allows the transfer of optical signals on two separate optical fibers across rotational interfaces.

The FO292 can be combined with our electrical and fluid slip rings, giving a single, compact package for optical signals, electrical power and fluid transfer.

The FORJ can be assembled with pigtail lengths tailored to the customer’s application. Housing, mounting flange and drive features can also be customized to meet the customer’s requirements. The FO292 can also be installed with one or both ends having a 90- degree cable exit, providing even more flexibility when installing the unit into existing slip ring assemblies or installations with little clearance space.

Features

Provides rotary coupling for two multimode fibers
Passive and bidirectional
Can be combined with various electrical slip rings and fluid unions
Smaller and more compact than the standard FO215 with improved back reflection performance
Customized mounting flanges available
Optional 90 degree cable exits at either end of the FORJ
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-810E functional shock (40 g)

FO292 Specifications

Fiber Size (Microns):
50 / 125 or 62.5 / 125. Consult factory for other fiber types.
Insertion Loss: Channel 1*
Typical < 1.5 dB | Maximum < 3.0 dB
Insertion Loss: Channel 2*
Typical < 4.5 dB | Maximum < 6.0 dB
Rotation Variation
Typical < 0.5 dB | Maximum < 1.0dB
Back Reflection (Typical)
20 dB
Back Reflection (Minimum)
18 dB
Wavelengths
850, 1300 or 1550 nm. Consult factory for other multi-wavelength applications.
Rotational Speeds
To 500 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
< 10 ps (calculated)
Exterior Surfaces
Stainless steel
Vibration
Tested to MIL-STD-167-1 (ships)
Shock
Tested to MIL-STD-810F
Terminations
Standard is with pigtail cables terminated with ST connectors at each end. Alternative connectors types available (FC, SC, LC).
Pressure
Up to 10,000 psi (69,000 kPa) for fluid filled version**
Pigtail Length
As required

* Add 0.5 dB to the insertion loss to version with 90 degree cable exits. ** Fluid filled version is slightly larger than shown below. Note: Optical values given are based on use with LED sources.

Fiber Optic Rotary Joints

FO292

FO292 Specifications

Typical Applications

FO292 Technical Data Sheet

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