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Updated: Jun 24, 2026
Writing Bragg Gratings in Multicore Fibers
Published on: April 20, 2016
Ultrahigh-channel-count phase-only sampled fiber Bragg grating covering the S, C, and L bands
Hongpu Li1, Ming Li, Junya Hayashi
1Department of Electrical and Electronic Engineering, Shizuoka University, Hamamatsu, Japan. dhli@ipc.shizuoka.ac.jp
Abstract:
A continuous phase-only sampling scheme enabling one to create an ultrahigh-channel-count fiber Bragg grating (FBG) with excellent channel uniformity and high in-band energy efficiency is proposed that is based on the simultaneous utilization of two phase-only sampling functions. With this method, a linearly chirped 135-channel FBG with a length of 10 cm, a dispersion of 1360 ps/nm, channel spacing of 0.8 nm, and grating strength of 10 dB is theoretically demonstrated, and the maximum refractive index change required is less than 10(-3).
