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FORJ: Multi-channel fiber optic rotary joint (MJn series, SM & MM)

MJ4-131-50

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MJ4ST-155-28

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FORJ catalog
Product selection guide

MJn series multi-pass Fiberoptic Rotary Joints (FORJs) connect 3-12 independent fiber channels simultaneously. They allow uninterrupted transmission of optical signals while rotating along the common mechanical axis. The MJn series FORJs feature low crosstalk performance (<-60 dB) for single and multi-mode fibers. Pressure compensation is also available with this model. All channels can accommodate either singlemode or multimode fibers. It is also possible to combine the two types of fibers in one device across three optical windows (850, 1310, and 1550 nm).

SPECIFICATIONS
PARAMETERS VALUES
Wavelength 1310, 1550 nm, or both (850, 1310 nm, or both)
Insertion loss <5 dB (typical: 2-3 dB)
Insertion loss ripple ~+/-0.5 to 1 dB
Return loss 45 dB
Crosstalk >50 dB (typical: 63 dB)
Maximum speed 100 rpm
Pulling strength 10 N
Start up torque <1 Nm
Estimated life cycle 100-200 million revolutions
Optical power handling 23 dBm
Working temperature -20 to 65 C
Storage temperature -25 to 75 C
Package style Pigtails or FC and ST receptecles
Housing material Stainless steel
Fiber types SM or MM w/3 mm cable, 1 m (Kevlar reinforced)
Connector types FC, SC, ST, SMA, LC or /APCs
Dimensions 67 mm dia. x 120 mm length
Weight 2.5 kg
Vibration MIL-STD-167-1A
Mechanical shock MIL-STD-810G
IP rating IP 65 (IP 68 optional)
CREATE YOUR PART NUMBER

MJn- wavelength code- fiber code- connector code

DOCUMENTS DOWNLOAD

Download PDF drawing for MJn
Download PDF drawing for MJn (n=8, 9, and 10)
Download PDF drawing for MJnST
Download PDF drawing for MJnPC
Download Solidworks 3-D drawing for MJn

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