Abstract
Coupling losses in a waveguide-laser resonator are considered for an arbitrary waveguide mode. For a rectangular waveguide the coupling efficiency is shown to be expressed in terms of a onefold integral, which can be evaluated in a closed form for three practical cases of interest corresponding to plane-parallel, half-concentric, and semiconfocal geometries. The results are used to discuss the extent of mode discrimination as well as the choice of optimum parameters for a compact waveguide-resonator design. The case of a phase-conjugate mirror is also considered. When an effective finite mirror size is used, a phase-conjugate waveguide resonator is shown to be capable of transverse-mode discrimination while providing low coupling losses for the fundamental waveguide mode.
© 1982 Optical Society of America
Full Article | PDF ArticleMore Like This
Govind P. Agrawal and Jean-Luc Boulnois
Opt. Lett. 7(4) 159-161 (1982)
P. A. Belanger, C. Pare, and M. Piche
J. Opt. Soc. Am. 73(5) 567-571 (1983)
Liu Erwu, Cao Mingcui, Xu Qiyang, and Wang Xinbing
Opt. Express 8(1) 11-16 (2001)