Photonics Research, 2017, 5 (1): 01000037, Published Online: Feb. 8, 2017
Subpicosecond pulses in a self-starting mode-locked semiconductor-based figure-of-eight fiber laser Download: 666次
Mode-locked lasers Mode-locked lasers Semiconductor lasers Semiconductor lasers Lasers Lasers fiber fiber Pulse shaping Pulse shaping
Abstract
We have experimentally studied the mode-locking dynamics of a polarization-maintaining figure-of-eight laser which has a semiconductor optical amplifier as gain medium. Self-starting mode-locking at the fundamental repetition rate of 18 MHz is obtained at the lasing threshold, and further increasing the bias current leads to the progressive emission of additional optical pulses in each round trip and eventually to mode-locked emission at increasingly high harmonics of the fundamental repetition rate, up to 2.45 GHz. The intensity autocorrelation of the amplified mode-locked pulses has a full width at half-maximum duration of 382 fs, which corresponds to a pulse duration of 247 fs.
D. Chaparro, L. Furfaro, Salvador Balle. Subpicosecond pulses in a self-starting mode-locked semiconductor-based figure-of-eight fiber laser[J]. Photonics Research, 2017, 5(1): 01000037.