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

Waveguide resonators with a phase-conjugate mirror

Govind P. Agrawal and Jean-Luc Boulnois
Opt. Lett. 7(4) 159-161 (1982)

Modes of phase-conjugate resonators with bounded mirrors

P. A. Belanger, C. Pare, and M. Piche
J. Opt. Soc. Am. 73(5) 567-571 (1983)

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Opt. Express 8(1) 11-16 (2001)

Higher-order modes of phase conjugate resonators

Amos Hardy and Simon Hochhauser
Appl. Opt. 21(13) 2330-2338 (1982)

Generalized mode theory of conventional and phase-conjugate resonators

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J. Opt. Soc. Am. 73(5) 576-586 (1983)