Abstract

In this work, an optical short pulse generator is designed consisting of a pulse compressor and cascaded notch filter type repetition rate doublers. The performance characteristics such as pulse width and peak power as a function of design parameters are studied. The pulse compressor is optimized based on the simulation results. The 6ps wide pulses at 20 GHz repetition rate directly generated from mode-locked fiber laser (MLL) are compressed to 1.25ps wide pulses. Using a set of polarization maintaining fiber (PMF) loop mirrors the repetition rate is quadrupled and stable 1.45 ps wide pulse train at 80GHz is achieved.

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