Bend-insensitive, single-mode sensor grade fibers, available with 820, 1310, and 1550 nm cutoff wavelengths, feature a high NA of 0. 16, making them suitable for tightly wound fiber spools for a variety of sensing applications. Optical fiber is sensitive to stress, particularly bending. 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. ClearCurve ® ZBL and LBL bend-improved single-mode fibers are cost-effective solutions designed to meet a wide array of applications and deployment conditions. A2) are a crucial part of the world's shift towards flexible and reliable connectivity.