Fiber Optic Rotary Joint (FORJ) is is created in the means of passing optical signals across the rotating devices and to transmit a high volume of data efficiently.

It consists of a sealed lens system and high precision bearings that rotate between fibers without affecting light transmission.

This kind of rotary joints are very efficient, cost-effective, compact, and do not lose any signal strength.

For a situation where optical signals need to be transmitted along a single fiber, a single-channel optical rotary joint can be used. It works by enlarging the diameter of the coupled light by using the lens, large diameter fiber, or fiber bundles.

They also come in single-mode or multi-mode functionality.