A wavelength-tunable, 10-GHz, sub-500-fs optical pulse source based on square-wave-driven LiNbO3 modulator and comb-like profiled fiber

By driving a 20-Gb/s intensity modulator with a 5-GHz square-wave, we successfully generate a 10-GHz, 15-ps optical pulse train, which is compressed to sub-500 fs in the wavelength range from 1535 nm to 1560 nm.