Fiber Optic Rotary Joint (FORJ) transfer light signals between components connected by unlimited 360° rotation. Especially for large capacity data and signal and without interruption. Since no electrical contacts to wear out, FORJs generally require more less maintenance compared to traditional electrical slip rings.

Optical fiber rotary joint can combine with traditional electrical slipring to form optoelectronic hybrid combiner rings, then transmitting power and high-speed data.