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 10cm, a dispersion of 1360psnm, channel spacing of 0.8nm, and grating strength of 10dB is theoretically demonstrated, and the maximum refractive index change required is less than 103.

© 2009 Optical Society of America

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