12 June 2002 Theory of enhanced laser linewidth in semiconductor lasers with a phase-sensitive treatment of the Fabry-Perot
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Proceedings Volume 4646, Physics and Simulation of Optoelectronic Devices X; (2002) https://doi.org/10.1117/12.470532
Event: Symposium on Integrated Optoelectronic Devices, 2002, San Jose, California, United States
Abstract
We present a quantized version of the Maxwell-Bloch equations keeping spatial dependency. The equations of motion for a semiconductor laser are derived in density matrix theory. The underlying approximations in various limits are discussed carefully. The derived equations of motion allow a comparison to the Langevin approach and a discussion of its validity. An analytic solution for the stationary problem that includes phase sensitivity will be given. A natural consequence of the phase sensitivity is an enhancement of the laser linewidth (beyond the Schawlow-Townes limit) in addition to the one that is commonly attributed to non-orthogonality of modes in longitudinal or transverse direction.
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Dietmar Preisser, Dietmar Preisser, Ortwin G. Hess, Ortwin G. Hess, "Theory of enhanced laser linewidth in semiconductor lasers with a phase-sensitive treatment of the Fabry-Perot", Proc. SPIE 4646, Physics and Simulation of Optoelectronic Devices X, (12 June 2002); doi: 10.1117/12.470532; https://doi.org/10.1117/12.470532
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