Bend-insensitive, single-mode sensor grade fibers, available with 820, 1310, and 1550 nm cutoff wavelengths, feature a high NA of 0. ClearCurve ® ZBL and LBL bend-improved single-mode fibers are cost-effective solutions designed to meet a wide array of applications and deployment conditions. When stressed by bending, light in the outer part of the core is no longer guided in the core of the fiber so some is lost, coupled from the core into the cladding, creating a higher loss in the stressed section of the fiber. If you put a. Bend insensitivity can be considered in terms of both the mechanical and optical performance of a fiber. In the case of a mechanically bend insensitive fiber, a reduced cladding such as 80µm or 50µm offers an improved coil lifetime * (see Reduced Clad 80µm Fiber entry)*.
[PDF Version]