Our supplier’s relentless drive for small-size rotary joints has resulted in our ZJn series multi-pass Fiber Optic Rotary Joints (FORJs). They have taken place of the MXn series FORJs as the most compact multi-channel products. Up to four independent fiber channels can be simultaneously connected through the ZJn.

The ZJn units are ideal when combined with electrical slip rings or RF rotary joints or when space is tight in general. The extremely small size does not mean that there is any compromise on performance. They still feature low insertion loss, low crosstalk (<-60 dB), and high return loss performance. Singlemode or multimode fibers can be mixed in one device.

Note: All insertion loss and return loss measurements are performed by joining the FORJ to the light source through a fusion splice (without the use of connectors). Insertion loss of all receptacle types of FORJs, such as RST, RFC, and RFCX, are measured with connectors of similar type. Their return loss is not measured.