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Journal Articles IEEE Photonics Technology Letters Year : 1996

Linewidth rebroadening due to nonlinear gain and index induced by carrier heating in strained quantum-well lasers

Abstract

The carrier heating has been recently recognized as one of the main origins of nonlinear gain, in particular in strained quantum-well lasers. The asymmetry of this effect introduces a nonlinear refractive index. The joint effects of nonlinear gain and nonlinear refractive index that are both due to carrier heating together with the spatial-hole-burning give rise to an increase in the carrier density and in the linewidth enhancement factor. These effects can explain the linewidth rebroadening at high power in phase-shifted single-mode DFB lasers
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hal-04124516 , version 1 (10-06-2023)

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F. Girardin, Philippe Gallion, Guang-Hua Duan. Linewidth rebroadening due to nonlinear gain and index induced by carrier heating in strained quantum-well lasers. IEEE Photonics Technology Letters, 1996, 8 (3), pp.334-336. ⟨10.1109/68.481108⟩. ⟨hal-04124516⟩
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