Analysis and Design of Phase-Coupled Laser Arrays

Amos Hardy; William Streifer; Marek Osinski

doi:10.1117/12.937679

14 January 1987 Analysis and Design of Phase-Coupled Laser Arrays

Amos Hardy, William Streifer, Marek Osinski

Proceedings Volume 0723, Progress in Semiconductor Laser Diodes; (1987) https://doi.org/10.1117/12.937679
Event: Cambridge Symposium-Fiber/LASE '86, 1986, Cambridge, MA, United States

Abstract

Coupled-mode theory is employed for the analysis and, consequently, for the design of phase-coupled laser arrays that may have improved properties, such as better supermodes discrimination and a narrower far-field pattern. We start with a brief description of the improved coupled-mode formulation for multiwaveguide systems. The formulation encompasses real and imaginary index perturbations, which determine modal gains or losses. We proceed by presenting the analysis of various phase-coupled, index-guided laser arrays. A common problem in many cases is poor mode discrimination, which may result in excitation of several lateral supermodes and wider far-field patterns. Based on the improved coupled-mode theory, some new promising structures are presented, along with a few numerical examples which suggest a better mode discrimination between the lowest-order and higher-order lateral modes.

Citation Download Citation

Amos Hardy, William Streifer, and Marek Osinski "Analysis and Design of Phase-Coupled Laser Arrays", Proc. SPIE 0723, Progress in Semiconductor Laser Diodes, (14 January 1987); https://doi.org/10.1117/12.937679

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