To achieve the polarization mode dispersion(PMD) compensation in high-rate optical fiber communication systems,a structure of linearly strain gradient cantilever based on high-birefringence linearly chirped fiber Bragg grating(Hi-Bi LCFBG) is proposed as the PMD compensator.Considering that there are different PMD values in different channels in wavelength division multiplexing(WDM) system,it is proposed that the chirp in sample period(CSP) is equivalent to the chirp in grating period(CGP).Using the Hi-Bi S...