Abstract

We demonstrate that two cross-polarized longitudinal modes can have 50% higher conversion efficiency than two parallel-polarized longitudinal modes in a diode-laser-pumped and intracavity frequency-doubled Nd:YVO₄ laser when operated under periodic pulse oscillation. Through simulations of the rate equations for primary frequency intensities and gains, we also verify that this effect can be attributed to gain competition and complementary conversion coefficient between second-harmonic and sum-frequency generations.

© 1998 Optical Society of America

Efficient operation of an intracavity-doubled nd:yvo₄/ktp laser end pumped by a high-brightness laser diode

Deyuan Shen, Anping Liu, Jie Song, and Ken-ichi Ueda
Appl. Opt. 37(33) 7785-7788 (1998)

Stable single-mode operation of intracavity-doubled diode-pumped Nd:YVO₄ lasers: theoretical study

Sten Helmfrid and Kimio Tatsuno
J. Opt. Soc. Am. B 11(3) 436-445 (1994)

Intracavity frequency doubling and Q switching in diode-laser-pumped Nd:YVO₄ lasers

Takunori Taira and Takao Kobayashi
Appl. Opt. 34(21) 4298-4301 (1995)

High-power diode-pumped Q-switched intracavity frequency-doubled Nd:YVO₄ laser with a sandwich-type resonator

Yung-Fu Chen
Opt. Lett. 24(15) 1032-1034 (1999)

Periodic pulse oscillation in an intracavity-doubled Nd:YVO₄ laser

H. Nagai, M. Kume, A. Yoshikawa, K. Itoh, and C. Hamaguchi
Appl. Opt. 35(27) 5392-5394 (1996)