Abstract

We present a new stability mechanism in an intracavity-doubled Nd:YAG laser oscillating in a multi-fundamental-longitudinal mode. Self-mode-locked oscillation, in which phases of the modes give the destructive interference between the sum and doubling components, leads to the low-noise operation of the diode-pumped, $>6-\mathrm{W}$ cw green laser, which we previously demonstrated [Opt. Lett. 211912 (1996)]. This phase-locked mode of operation would reduce the nonlinear output coupling and ultimately eliminate the chaotic amplitude fluctuation from the so-called green problem. The internally reflected green light at the end mirror has a significant effect on phase locking and elimination of noise through parametric processes.

© 1997 Optical Society of America

Intracavity frequency doubling of a diode-pumped 946-nm Nd:YAG laser with bulk periodically poled MgO–LiNbO₃

Akinori Harada, Yasukazu Nihei, Yoji Okazaki, and Hiroaki Hyuga
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Design and characterization of a diode-pumped, single longitudinal and transverse mode, intracavity-doubled cw Nd:YAG laser

A. Agnesi, S. Dell’Acqua, G. C. Reali, P. G. Gobbi, and D. Ragazzi
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Analysis of an intracavity-doubled diode-pumped Q-switched Nd:YAG laser producing more than 100 W of power at 0.532 µm

Eric C. Honea, Christopher A. Ebbers, Raymond J. Beach, Joel A. Speth, Jay A. Skidmore, Mark A. Emanuel, and Stephen A. Payne
Opt. Lett. 23(15) 1203-1205 (1998)

Intracavity second-harmonic and sum-frequency generation with a laser-diode-pumped multitransition-oscillation LiNdP₄O₁₂ laser

Kenju Otsuka, Ryoji Kawai, and Yusuke Asakawa
Opt. Lett. 24(22) 1611-1613 (1999)

High-power diode-pumped picosecond Nd³⁺:YVO₄ laser

A. Agnesi, C. Pennacchio, G. C. Reali, and V. Kubecek
Opt. Lett. 22(21) 1645-1647 (1997)