MJX series Fiber Optic Rotary Joints (FORJs) are extremely compact. So small they can even be used in the middle of fluid flows. They are the world’s smallest and lightest. They feature very low insertion loss and impressive return loss performance.

Model MJXA typically yields return loss figures higher than 60 dB. Similar to R series and RFCX series, the MJX Series FORJs contain fluid, which ensures condensation-free operation at extremely low temperatures. It is also ideal for high-humidity environments.

The standard packages are dust and watertight for harsh environment applications. They are designed to tolerate both occasional water splash and shallow water (or oil) immersion. These rugged devices can operate under arctic temperature environments (See insertion loss temperature cycling plot below).

This model’s low static and dynamic torques make it an ideal choice for low-torque applications such as optogenetics. For the pigtail-free option consider our model RFCX, RFC, or RST. In those cases, remember to specify “low torque”. MJX-SAP is specifically designed for OCT (Optical Coherent Tomography) applications. Its mounting scheme is identical to the MJP-SAP model FORJ. We offer gear or pulley as a driving mechanism. The receptacle can be SC/APC, FC/APC, or LC/APC.

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.