Flexible adjustment of the dispersion characteristic in chirped fiber Bragg grating

This paper presents a novel technique for dispersion compensation, employing a linear chirped fiber Bragg grating (CFBG) with a thermal head consisting of several micro-heaters. The micro-heaters temperature are controlled by computer, and the change of micro-heaters temperature will induce the change of grating temperature, and the change of Bragg wavelength, and the change of delay and dispersion of the grating. Thereby, the goal of tunable dispersion compensation to different systems dispersion and the survival dispersion has been achieved.