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Updated: May 16, 2026
Direct Imaging of Laser-driven Ultrafast Molecular Rotation
Published on: February 4, 2017
Exploring the spatio-temporal dynamics of an optically pumped semiconductor laser with intracavity second harmonic
Hsing-Chih Liang1, Yi-Chun Lee, Jung-Chen Tung
1Department of Electrophysics, National Chiao Tung University, Hsinchu 30010, Taiwan.
Abstract:
We experimentally observe an intriguing phenomenon of complex spatio-temporal dynamics in a commercial optically pumped semiconductor laser with intracavity second harmonic generation. We numerically verify that the experimental results come from the total mode locking of transverse electromagnetic modes (TEM00) and higher-order modes with significant astigmatism. The scenarios of the spatio-temporal dynamics are quite similar to the phenomena in soft-aperture Kerr-lens mode locked Ti:sapphire lasers.
