Abstract
The rate equations for the intracavity-frequency-doubled quasi-three-level lasers are developed. By normalizing the related parameters, it is shown that the general solution to the rate equations is dependent upon four dimensionless parameters: the normalized reabsorption loss, the pump to laser-mode size ratio, the normalized pump level, and a parameter written as η shg , which is related to the ability of the nonlinear crystal to convert the fundamental to the second harmonic. By numerically solving these rate equations, a group of general curves are obtained to express the relations between the solution and the four dimensionless parameters.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Martin, K. I., Clarkson, W. A., Hanna, D. C., 3 W of single-frequency output at 532 nm by intracavity frequency doubling of a diode-bar-pumped Nd:YAG ring laser, Opt. Lett., 1996, 21(12): 875–877.
Otsuka, K., Kawai, R., Asakawa, Y., Intracavity second-harmonic and sum-frequency generation with a laser-diode-pumped multitransition-oscillation LiNdP4O12 laser, Opt. Lett., 1999, 24(22): 1611–1613.
Matthews, D. G., Conroy, R. S. Sinclair, B. D. et al., Blue microchip laser fabricated from Nd:YAG and KNbO3, Opt. Lett., 1996, 21(3): 198–200.
Kellner, T., Heine, F., Huber, G., Efficient laser performance of Nd:YAG at 946 nm and intracavity frequency doubling with LiJO3, β-BaB2O4, and LiB3O5, Appl. Phys. B, 1997, 65(6): 789–792.
Pierrou, M., Laurell, F., Karlsson, H. et al., Generation of 740 mw of blue light by intracavity frequency doubling with a first-order quasi-phase-matched KTiOPO4 crystal, Opt. Lett., 1999, 24(4): 205–207.
Zeller, P., Peuser, P., Efficient, multiwatt, continuous-wave laser operation on the 4F3/2-4I9/2 transitions of Nd:YVO4 and Nd:YAG, Opt. Lett., 2000, 25(1): 34–36.
Zhang, X., Wang, Q., Zhao, S. et al., Theory of intracavity-frequency-doubled solid-state four-level lasers, Science in China, Ser. E, 2002, 45(2): 130–139.
Fan, T. Y., Byer, R. L., Modeling and cw operation of a quasi-three-level 946 nm Nd:YAG laser, IEEE J. Quantum Electron., 1987, 23(5): 605–612.
Risk, W. P., Modeling of longitudinally pumped solid-state lasers exhibiting reabsorption losses, J. Opt. Soc. Am. B, 1988, 5(7): 1412–1423.
Tsira, T., Tulloch, W. M., Byer, R. L., Modeling of quasi-three-level lasers and operation of cw Yb:YAG lasers, Appl. Opt., 1997, 36(9): 1867–1874.
Lim, C., Izawa, Y., Modeling of end-pumped CW quasi-three-level lasers, IEEE J. Quantum Electron., 2002, 38(3): 306–311.
Zhang, X., Zhao, S., Wang, Q. et al., Laser diode pumped Cr4+:YAG passively Q-switched Nd3+:S-FAP laser, Opt. Commun., 1998, 155(1–3): 55–60.
Smith, R. G., Theory of intracavity optical second harmonic generation, IEEE J. Quantum Electron., 1970, 6(4): 215–230.
Laporta, R., Brussard, M., Design criteria for mode size optimization in diode-pumped solid-state lasers, IEEE J. Quantum Electron., 1991, 27(10): 2319–2326.
Chen, Y. F., Kao, C. F., Wang, S. C., Analytical model for the design of fiber-coupled laser-diode end-pumped lasers, Opt. Commun., 1997, 133(1–6): 517–524.
Zhang, X., Zhao, S., Wang, Q. et al., Modeling of diode-pumped actively Q-switched lasers, IEEE J. Quantum Electron., 1999, 35(12): 1912–1918.
Zhang, X., Zhao, S., Wang, Q. et al., Modeling of passively Q-switched lasers, J. Opt. Soc. Am. B, 2000, 17(7): 1166–1175.
Zhang, X., Zhao, S., Wang, Q. et al., Passively Q-switched self-frequency-doubled Nd3+:Gd Ca4O(BO3)3 laser, J. Opt. Soc. Am. B, 2001, 18(6): 770–779.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Wang, Q., Zhang, X., Li, P. et al. Theory of intracavity-frequency-doubled quasi-three-level cw lasers. Sci China Ser F 46, 381–389 (2003). https://doi.org/10.1360/02yf0202
Received:
Issue Date:
DOI: https://doi.org/10.1360/02yf0202