Efficient ultrafast fiber laser using chirped fiber Bragg grating and chirped volume Bragg grating stretcher/compressor configuration

Optimization of a supercontinuum source based on tapered ordinary fibers

“…The pulses were then stretched using a tunable chirped fiber Bragg grating (CFBG) from 1.5 ps to 480 ps and amplified in two fiber amplification stages that were pumped with laser diodes at 976 nm [30], [31]. The repetition rate of the pulses in the second amplification stage was controlled using an acousto-optic modulator (AOM) [20].…”