Bifurcated fiber is an optic Light-guide that performs both transmitting and receiving functions. Bifurcated fiber Cable assemblies are Y-shaped assemblies with two fibers and the same diameter. The two fibers are together inside. On one end has a common Premium SMA 905 connector. Fibers diverge into two legs from the breakout point. Where the UHV version is made from 100-percent UHV compatible materials including a PEEK weave jacket the UHV and Air-service versions are available. The Air-service assemblies are made of PVC jacket. The UHV versions are split at 12-inches from the common end and the air-service versions are split at 25-inches from the common end.
Bifurcated fiber bundles:-
Bifurcated Fiber Bundles, also known as Y-cables, are assembled from two high-grade optical fibers encased in stainless steel tubing for durability. We provide these bundles with seven fiber core sizes from Ø50 µm to Ø1000 µm. They are available with two high-OH fibers, one high-OH, two low-OH fibers, and one low-OH fiber, or two ZBLAN ZrF4 fibers. ZrF4 fiber bundles are especially advantageous for spectroscopy, as they provide exceptionally broad transmission from the UV into the mid-IR (285 nm - 4.5 µm).
All these three ends of the cable are terminated with SMA905 or FC/PC connectors. SMA905 connectors are available for diameter and each fiber type. FC/PC connectors are accessible for high-OH fibers with a 200 or 400 µm core diameter. The stainless steel sleeves of the connectors on the breakout legs of the cable are a chase to indicate the fiber type in each leg. The sleeve of the common connector is chase with the fiber core size and numerical aperture (NA).
Features of bifurcated fiber:-
Custom Versions Available.
SMA905 or FC/PC 2.0 mm Narrow Key Connectors Terminate All Ends.
Dust Cap for Each Connector Included.
Core Sizes from Ø50 µm to Ø1000 µm.
Y-Cables with One of the Four-Fiber Configurations.
High OH (UV Enhanced).
Low OH (IR Enhanced).
Mixed (One Low OH and One High OH).
ZrF4 (UV to MIR).
One leg of each bundle holds both fibers before passing through a junction where the cable splits into two legs; each one is holding a single fiber. Cables with high-OH fiber and/or low-OH fibers are 2 m long from the common end to the split ends, for a period cables with ZrF4 fibers are 0.5 m long from the common end to the split ends. The two legs are threaded through a sliding source so that the breakout length of the cable can be adjusted. The source can be locked in place by tightening the 5/64" (2 mm) hex setscrew. A 5/64" key is attached to each bundle.
When using the common end as the input side, these cables perform best when used with the sources that provide even illumination across both fiber cores, such as LEDs with a large emitter angle or white stabilized light sources
Generally, each patch cable includes two or three protective fiber caps that shield the connector ends from dust and other hazards. Bundles with connectors included metal CAPM Rubber and the CAPSM dust caps. Fiber Caps can be purchased as an alternative option. Bundles with FC/PC connectors include CAPF Plastic Dust Caps.
WPI also provides custom fiber bundles according to the client’s request, including straight bundles and bifurcated fiber bundles with one common connector split into two or more connectors.