Open AccessSpatiotemporal dynamics of a passively mode-locked Nd:GdVO4laser
Author(s) -
Hsiao–Hua Wu,
Chi-Rong Huang,
Jian-Tzung Huang
Publication year - 2007
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.15.002391
Subject(s) - optics , transverse plane , laser , mode locking , physics , pulse (music) , transverse mode , resonator , mode (computer interface) , amplitude , dynamics (music) , instability , continuous wave , acoustics , structural engineering , detector , computer science , mechanics , engineering , operating system
By examining beam patterns, temporal pulse forms, and radio-frequency spectra as functions of resonator configuration and pump power, we found that a passively mode-locked Nd:GdVO4 laser exhibited four main regimes of operation that were single-transverse-mode Q-switched mode locking (QSML), single-transverse-mode continuous-wave mode locking (CWML), multiple-transverse-modes QSML, and multiple-transverse-modes CWML. The effect of multiple transverse modes on CWML was giving rise to amplitude instability in the pulse train. In the regime of multiple-transverse-modes QSML, we observed the phenomenon of spatiotemporal dynamics that spatial patterns vary with the time.