Fiber Optic Rotary Joints with 2 to 4 Channels

Type x.25 - Straight Versions

The smallest of the multichannel fiber optic rotary joint's (FORJ) made by SPINNER is the x.25 with an outer housing diameter of 25 mm and two to four channels. Precisely produced mechanical components, highly trained technicians, and active alignment of all optical parts combine to endow this FORJ with superior performance and reliability in a compact case.

The two, three or four channels can be separately specified according to your needs. This ensures that the FORJ is optimally suited to the application at hand. For example, it is possible to have both single-mode and multimode channels on the same FORJ, thus providing a high degree of flexibility in all situations. Thanks to SPINNER’s proprietary alignment technology, the optical parameters of the channels can also be individually specified for optimal performance.

The mechanical components can also be adjusted to meet your needs. At a lower ingress protection level of IP50, high rotational speeds up to 6000 rpm are possible, while IP65 is for difficult environmental conditions.

To facilitate installation and minimize the effect on your system, SPINNER provides customized FLEXIFLANGES.

If space is limited but you need more bandwidth, you can add virtual channels by combining our x.25 types with a WDM (both DWDM and CWDM) setup (wavelength division multiplexing). This lets you transmit independent channels over the same fiber.

Applications

Wind Turbines – Medical –Ports and Containers – Military Radar – Space – Surveillance Gimbals – Sensors – Satcom – Camera Applications – Plant Engineering – Environmental Technology

Specifications

• Channel count: 2 – 4
• Fiber types: single-mode (SM), multimode (MM)
• Max. insertion loss: standard 3.5 dB, premium 2.0 dB
• Insertion loss variation over rotation max: standard 1.5 dB, premium 1.0 dB
• Return loss: 50 dB
• Wavelength: 400 nm –1600 nm (depending on fiber type)
• Rotational speed: up to 6,000 rpm
• Weight (excl. connectors): 250 g
• Torque: 0.8 Nm
• Degree of protection: IP50, IP65
• Recommended temperature range: -40 °C to +85 °C

Type x.25L - Right Angle Versions

An absolute novelty and exclusively available from SPINNER is the L-shaped x.25. In this design, the fibers on the stator side exit the FORJ at a 90° angle to its rotational axis, thus leaving plenty of room at the top for additional instrumentation. This concept combines a small diameter with a short length, making it ideally suited for use in 4K or 8K cameras, for example.

Applications

4K or 8K camera systems, gimbals and whenever space is at a premium

Specifications

• Channel count: 2 – 4
• Fiber types: single-mode (SM), multimode (MM)
• insertion loss: standard 4.0 dB, premium 2.5 dB
• Insertion loss variation over rotation max: standard 1.5 dB, premium 1.0 dB
• Return loss: 50 dB
• Wavelength: 400 nm – 1600 nm (depending on fiber type)
• Rotational speed: up to 6,000 rpm
• Weight (excl. connectors): 250 g
• Torque: 0.8 Nm
• Degree of protection: IP50, IP65
• Recommended temperature range: -40 °C to +85 °C

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