Amplification of optical pulse signal using chirped fiber grating

These chirped fiber Bragg grating is an attractive and practical element in particular context of dense wavelength-division multiplexing. We introduce a structure to realize working mode of the optical pulse's high power amplification. Also we analyze the variation of pulse signal after broaden or compression together with the variation in frequency domain and the peak intensity of pulse signal amplified by EDFA and subsequently compressed, in which these influence caused by the discrepancy of two optical paths and two dispersion parameters are considered.