Fiber Optic Rotary Joints (FORJ)
Contact:
Mathew Tharakan
Business Development Manager
(978) 624-3469
circular@amphenolpcd.com
Contact Us to Learn More
Description:
Continuous Optical Signal Transmission Across Rotating Interfaces.
Spin Tact™ Fiber Optic Rotary Joints (FORJs) provide high-speed, EMI-immune optical data transfer across rotating interfaces without signal interruption. They are designed for applications where electrical slip rings alone cannot meet bandwidth or noise requirements.
Key FORJ Capabilities
- Single-channel to 48-channel configurations
- Single-mode (SM) and multi-mode (MM) fiber support
- Wavelengths: 850 nm, 1310 nm, 1550 nm (custom available)
- Low insertion loss (typically <2.5 dB per channel)
- High return loss (>50 dB SM / >35 dB MM)
- Continuous 360° rotation with no optical degradation
- Life exceeding 200 million revolutions
FORJs are commonly integrated into EO/IR gimbals, radar systems, UAV payloads, shipboard masts, and subsea optical links.
Engineering Resources & Next Steps
- Download Technical Datasheets
- Request CAD / STEP Models
- Speak with an Applications Engineer
- Request a Custom Hybrid Configuration
- Technical Specifications
- Documents
- Materials & Contact Technology
- Standards & Qualification
- Applications
Optical Channels | 1–48 (custom available) |
Wavelengths | 850 / 1310 / 1550 nm |
Insertion Loss | <2.5 dB (typical) |
Return Loss | >50 dB (SM), >35 dB (MM) |
Max Rotational Speed | Up to 500 RPM (FORJ) |
Operating Temperature | –40°C to +85°C |
Environmental Sealing | Up to IP68 |
Service Life | 50–300 million rotations |
Connector Options | MIL-DTL-83526, MIL-DTL-38999, LC, SC, ST, FC |
Materials | Stainless steel, anodized aluminum, marine bronze |
Fiber Optic Rotary Joints (FORJ)
Amphenol Slip Ring & Rotary Joint Solutions for Defense & Industrial Applications
Spin Tact Hybrid Slip Ring
Spin Tact™ products use application-specific contact technologies to optimize performance and longevity:
- Gold-gold contacts for low-noise signal transmission
- Silver/carbon brushes for high-current power transfer
- Ruthenium-plated contacts for low wear and extended life
- Contactless capacitive and antenna-based solutions for ultra-high-speed data paths
These materials are selected to minimize contact resistance, reduce maintenance, and improve MTBF in demanding environments
Spin Tact™ rotary solutions are engineered and qualified to meet stringent industry and military requirements:
- AS9100 manufacturing compliance
- MIL-STD-810G/H (shock, vibration, temperature, salt fog)
- MIL-STD-461G (EMI/EMC)
- MIL-STD-167-1A (shipboard vibration)
- IEC 61753-1 / IEC 61754-20 optical performance standards
Defense & Aerospace
- EO/IR turret systems
- Radar and SATCOM antennas
- UAV and airborne sensor payloads
- Missile seeker and gimbal systems
Maritime & Naval
- Shipboard surveillance masts
- Sonar and towed array systems
- Subsea and underwater vehicles (ROVs/AUVs)
Industrial & Medical
- Robotics and automation
- Semiconductor manufacturing equipment
- MRI and CT imaging systems
- Wind energy and rotating machinery