Electrical Slip Rings
Fiber Optic Slip Rings
Fiber Optic Rotary Joints



Plastic optical fibers (POF) possess a few important characters that make them favorite choices for certain short-distance fiber optic applications. Their large cores allow easy light coupling. Termination can be simplified to quick hot knife cutting or diamond turning. They are bend insensitive and do not fatigue easily.

Princetel's PJ2 series 2-channel FORJ connects two independent fiber channels simultaneously. They are blind-spot free during rotation and are ideal for machine control applications such as SERCOS Interfaces. The rugged design permits underwater usage. Damaged fibers can be easily replaced without costly repairs of the FORJ itself.

Check out our MXn series FORJs for multiple channel and GigaPOF based devices. For single-channel POF FORJs visit our RPT series page.
650 nm
Insertion loss
<8 dB/channel 1, <10 dB/channel 2
Insertion loss WOW
<+/-1 dB/channel 1, <+/-1.5 dB/channel 2
Return loss
~40 dB
>25 dB
Maximum speed
1000 rpm
Pulling strength
20 N
Start up torque
<0.2 Nm
Estimated life cycle
>200 million revolutions
Optical power handling
23 dBm
Working temperature
-40 to 85 C
Storage temperature
-50 to 85 C
Package style
Pigtails on both ends
Housing material
Stainless steel/Aluminum
Fiber types
PMMA step index, 1 mm core/2 mm jacket
Connector types
FC, ST, and SMA905
24 mm dia. x 130 mm length
~250 g