DISPERSION COMPENSATION OPTICAL PULSE TIME SPREADING DEVICE, OPTICAL MULTIPLEX TRANSMISSION SYSTEM AND OPTICAL COMMUNICATION NETWORK SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide an optical pulse time spreading device having a wavelength dispersion compensation function.;SOLUTION: A dispersion compensation SSFBG includes first PKFBG to M-th PKFBG, and each of the first PKFBG to the M-th PKFBG includes N unit FBGs. Bragg reflection wavelengths λ₁, λ₂, ... λ_M which are set to N unit FBGs included in the first PKFBG to the M-th PKFBG satisfy λ₁λ₂...λ_M. Defining given delay time as T_W; and light speed in a vacuum as c, the first PKFBG to the M-th PKFBG are disposed in order including a disposition intervals L_w expressed by T_W×c/(2×n_eff). When an input optical pulse is input, a chip pulse train is output as a reflected light in which the wavelength spectrum is given with a time delay T_W on a time axis for the respective wavelengths λ₁, λ₂, ... λ_M.;COPYRIGHT: (C)2014,JPO&INPIT