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

Volume

45

Issue

1

fYear

2009

Firstpage

86

Lastpage

89

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;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/JQE.2008.2001946

Filename

4711371