Patent ID: 9116279
Filing Date: 2015-08-25
Classification: G02B

Abstract:
1. A trench-assisted optical fiber, optimized for microbending performance, comprising a core region having a longitudinal axis, a shelf region surrounding said core region, a cladding region surrounding said shelf region, said core and shelf and cladding regions configured to support and guide the propagation of signal light in a fundamental transverse mode in said core and shelf regions in the direction of said axis, the cladding region including an inner trench and an outer trench, wherein the optical fiber further comprises: a core effective area (Aeff) of between 130 μm an effective relative refractive index difference of greater than about 0.08%; a loss at 1550 nm of less than 0.180 dB/km; and a microbend frontier (MBF) distance of less than about 90%, wherein the microbend frontier (MBF) distance is defined as: B1·core delta+B2·(core radius) B 1 is approximately 690; B2 is approximately−0.7 μm; B3 is approximately−0.27 μm B4 is approximately 14; B5 is approximately 3 μm; B6 is approximately 0.07 μm B7 is approximately 0.03 μm B8 is approximately−0.0016 μm