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, 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 measures between 1 and 2 meters in its standard version, while the output rotating patch cord is 0.15 meters long. Different length fiber-optic patch cords can be connected to the output using an FC/FC mating adapter.

This is an improved version of our Pigtailed 1x1 Fiber-optic Rotary Joint with better mechanical stability.  It is important to note that the outer diameter is slightly larger than the original version, and requires the holder to have an aperture of 19 mm diameter.

Item includes : 

• Pigtailed 1x1 Fiber-optic Rotary Joint Gen.2
  

• Compatible Holder FRJ_1x1_PT-G2
• Gimbal Holder for FRJ_1x1_PT-G2: allows pivoting the rotary joint along two additional axes, further reducing the mechanical stress on the animal.
• Mating adapters: used to connect different patch cords to the optical fibers already linked to the rotary joint.