Title :
Diode-Pumped Rational Harmonic Mode-Locked Yb:GSO Laser
Author :
Hao, Qiang ; Li, Wenxue ; Wu, E. ; Zeng, Heping
Author_Institution :
Dept. of Phys., East China Normal Univ., Shanghai
Abstract :
We experimentally demonstrated a sub-picosecond laser based on Yb:Gd2SiO5 crystal and obtained stable rational harmonic mode-locked laser output. Along with the fundamental repetition rate of 100 MHz, we observed the generation of the 200 MHz harmonics and pulse bunches, depending on the balance between the laser gain and incident pulse energy fluence on the semiconductor saturable absorber mirror. The pulse duration in harmonic mode-locking operation was measured as 600 fs, while pulses in bunch were measured with a duration of 1 ps separated by 20-ps time interval.
Keywords :
gadolinium compounds; laser beams; laser mirrors; laser mode locking; optical harmonic generation; optical materials; optical pulse generation; optical pumping; optical saturable absorption; solid lasers; ytterbium; Gd2SiO5:Yb; balanced incident pulse energy; harmonic generation; laser gain analysis; optical diode-pumping technique; pulse bunch generation; semiconductor saturable absorber mirror; stable rational harmonic mode-locked laser output; sub picosecond laser; time 1 ps; time 20 ps; time 600 fs; Diodes; Fiber lasers; Laser mode locking; Laser stability; Mirrors; Optical pulse generation; Optical pulses; Pulse measurements; Semiconductor lasers; Solid lasers; Mode-locked lasers; pulse generation; ytterbium lasers;
Journal_Title :
Quantum Electronics, IEEE Journal of
DOI :
10.1109/JQE.2008.2001946
