GXMA series Fiber Optic Rotary Joint
The GXMA is a fiber optic rotary joint (FORJ) for transmitting optical signals across a rotating interface without contact wear. This series is multi-channel, 2 to 31 channels, supporting single-mode and multi-mode transmission depending on the configuration.
Typical applications: radar and antenna turntables, high-definition video on rotating platforms, fiber sensing systems and medical or industrial imaging equipment where copper slip rings would introduce noise or bandwidth limits.
Selection notes: channel count, fiber type and connector style are specified per project. Electrical channels can be combined in the same unit when a machine needs both optical data and power across the same joint. Multi-channel models in this family are rated for up to 100 million revolutions.
GUREN assembles and tests fiber optic rotary joints in-house, including insertion loss checks before delivery.
Custom circuit counts, lead lengths, connector types and mounting flanges are quoted on request, and in-house machining keeps lead times short for both standard and modified units.
Specifications — GXMA
| Parameter | Value |
|---|---|
| Model reference | GXMA series |
| Configuration | 2-31 channels |
| Insertion loss | 3.5 dB |
| Insertion loss fluctuation | 1.5 dB |
| Return loss | 40 dB |
| Power handling | 23 dBm |
Figures above are from the current datasheet for this series. Customisation is quoted per drawing.
Frequently asked questions — GXMA
What type of fiber does the GXMA use?
Single-mode and multi-mode options are available; confirm at order..
What are the optical loss figures?
Insertion loss 3.5 dB, fluctuation 1.5 dB.
Can it be combined with an electrical slip ring?
Yes. Fiber optic rotary joints are often supplied as a separate unit or integrated with an electrical slip ring on the same shaft.
Which connector type is standard?
FC/PC or ST as listed. Other connector types are quoted on request.
