Open AccessSingle- and dual-pulse oscillation in a passively Q-switched Nd:YAG microchip laser
Author(s) -
Linquan Niu,
Chao Gao,
Shaowei Zhu,
Chuandong Sun,
Haodong He,
Zhijun Song,
Weidong Tang
Publication year - 2011
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.19.020628
Subject(s) - optics , q switching , pulse (music) , laser , oscillation (cell signaling) , materials science , saturable absorption , pulse shaping , pulse width modulation , fiber laser , physics , detector , power (physics) , quantum mechanics , biology , genetics
Experimental investigation of single and dual pulses in a passively Q-switched Nd:YAG microchip laser with a Cr4+:YAG saturable absorber has been reported. The dual pulses consist of a main and a satellite pulse with respective spectra, intensities, and durations. It is found that the preponderant oscillating mode gives birth to the main pulse, and the other oscillating mode corresponds to the satellite pulse. Our results demonstrate that the dual-pulse emission results from double-longitudinal-mode oscillation in high pump regime.