Title :
Generation of 20-fs optical pulses from a gain-switched laser diode by a four-stage soliton compression technique
Author :
Matsui, Yasuhiro ; Pelusi, Mark D. ; Suzuki, Akira
Author_Institution :
Femtosecond Technol. Res. Assoc., Ibaraki, Japan
Abstract :
7.5-ps optical pulses generated from a gain-switched semiconductor laser at 2 GHz are successfully compressed down to 20 fs using a four-stage fiber soliton pulse compressor consisting of standard single-mode transmission, Er-doped, dispersion-decreasing, and dispersion-flattened fibers, respectively. We have experimentally confirmed that the soliton self-frequency shift plays an important role in obtaining such high compression in very short fibers, and also in minimizing the inherent undesirable pedestal component.
Keywords :
optical fibre dispersion; optical pulse compression; optical pulse generation; optical solitons; semiconductor lasers; 20 fs; 7.5 ps; Er-doped dispersion-decreasing fibers; Er-doped dispersion-flattened fibers; four-stage fiber soliton laser pulse compressor; four-stage soliton compression technique; fs optical pulse generation; gain-switched laser diode; gain-switched semiconductor laser; optical pulse compressor; pedestal component; ps optical pulses; self-frequency shift; standard single-mode transmission; very short fibers; Diode lasers; Erbium-doped fiber lasers; Optical pulse compression; Optical pulse generation; Optical pulse shaping; Optical pulses; Optical solitons; Pulse compression methods; Semiconductor lasers; Ultrafast optics;
Journal_Title :
Photonics Technology Letters, IEEE
