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