Wide-bandwidth chirped fiber Bragg grating (FBG) has been fabricated using precisely scanning phase-mask technique. Two ends of the mask by ten percent length are coated, whose transmissive characteristics approximate fourth order Gaussian function. The maximum delay ripple of the chirped grating written by such a phase mask is about 20 ps.In order to decrease polarization mode dispersion (PMD) of chirped fiber Bragg grating, a novel method, which is called polarization mode dispersion-compensation written technique, has been developed. Differential group delay of chirped fiber Bragg grating by the former written technique is 9.1406 ps, but with the newly developed method it has been greatly reduced to 0.1521 ps. Such low polarization mode dispersion chirped fiber Bragg gratings were then used to compensate the dispersion of 40 Gb/s optical time division multiplexing transmission over 122 km of G.652 fiber