Numerical modeling of inhomogeneously pumped circular-grating distributed feedback (DFB) lasers

Keith J. Kasunic; E. M. Wright; Nasser Peyghambarian

doi:10.1117/12.206338

10 April 1995 Numerical modeling of inhomogeneously pumped circular-grating distributed feedback (DFB) lasers

Keith J. Kasunic, E. M. Wright, Nasser Peyghambarian

Author Affiliations +

Proceedings Volume 2398, Circular-Grating Light-Emitting Sources; (1995) https://doi.org/10.1117/12.206338
Event: Photonics West '95, 1995, San Jose, CA, United States

Abstract

We report on the spectral properties of an inhomogeneously-pumped circular-grating distributed-feedback semiconductor laser. Numerically modeling the exact coupled-mode equations, we find that, in comparison with the homogeneous case, a Gaussian optical pump results in greater azimuthal mode discrimination, a broader multi-mode spectral envelope, and a wider fundamental linewidth.

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Keith J. Kasunic, E. M. Wright, and Nasser Peyghambarian "Numerical modeling of inhomogeneously pumped circular-grating distributed feedback (DFB) lasers", Proc. SPIE 2398, Circular-Grating Light-Emitting Sources, (10 April 1995); https://doi.org/10.1117/12.206338

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