Pigtailed 1x1 Fiber-optic Rotary Joint

Fiber photometry experiments detect small power variations from a fluorophore and for that reason the fiber-optic rotary joints within the setup require minimal transmission variation. 

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Fiber photometry experiments detect small power variations from a fluorophore and for that reason the fiber-optic rotary joints within the setup require minimal transmission variation. Because of large core multimode fibers and connector tolerances (i.e. 400 µm NA 0.48), transmission variation can only be minimized using a pigtailed version of 1x1 fiber-optic rotary joint. The pigtailed patch cords are made from 0.37 or 0.57 NA, 200 or 400 µm diameter optical fiber with a lightweight metal jacket and FC connectors. The fixed input patch cord is 1 m long, while the output or rotating patch cord is 0.15 m long. Different length fiber-optic patch cords can be connected to the output using an FC/FC mating adapter.

Notes:
• The compatible holder for the Pigtailed 1x1 Fiber-optic Rotary Joints is sold separately (Holder_FRJ_small).
• An optional gimbal holder allows pivoting the rotary joint along two additional axes, further reducing the mechanical stress on the animal (GH_FRJ). 
• A compatible FC/FC mating adapter (ADAPTER_FC) is sold separately and can be used to connect different patch cords to the 400 µm diameter NA 0.48 optical fibers already linked to the rotary joint.

Maximum variationLess than 1% peak-to-peak
TransmissionOver 70%
Typical fiber configurationInput and output: 200 or 400 µm core - NA 0.37 or 0.57
Start up torque20 µN·m
Length30 mm
Outer Diameter17 mm
Mass18 g without optical fibers
NoteTested with 400 µm core NA 0.48 fiber-optic patch cords

FRJ_1x1-MANUALV2.2.2.pdf

1x1 fiber rotary joint manual

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FRJ_1x1_PT-DRAWING.pdf

Pigtailed 1x1 fiber rotary joint

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