Please use this identifier to cite or link to this item: http://cris.utm.md/handle/5014/916
Title: Sensitivity of Detuned DBR Semiconductor Lasers
Authors: TRONCIU, Vasile 
WERNER, Nils 
WENZEL, Hans 
WÜNSCHE, Hans Jurgen 
Keywords: Distributed Bragg reflector;laser;external feedback;Lang-Kobayashi equations;stability
Issue Date: 2021
Publisher: IEEE
Project: 20.80009.5007.08. Studiul structurilor optoelectronice şi a dispozitivelor termoelectrice cu eficienţă înaltă 
Journal: IEEE Journal of Quantum Electronics
Abstract: 
A distributed Bragg reflector (DBR) laser represents a simple realization of a semiconductor laser operating in a single longitudinal mode. We present a so far missing theoretical study how its reflection tolerance depends on the detuning between lasing wavelength and maximum of the DBR reflectivity. The generic Lang-Kobayashi equations for lasers subject to optical feedback are extended to include the detuning parameter on base of the round-trip condition for stationary states. As a consequence, a well established formula for estimating the feedback tolerance is modified for detuned DBR lasers, too. Bifurcation analysis of the Lang-Kobayashi equations confirms the modified formula. Properly adapting the parameters of the DBR, the calculations yield a possible tolerance of the simple DBR laser against nearly 100 % feedback.
Description: 
Volume: 57, Issue: 5, Oct. 2021
URI: http://cris.utm.md/handle/5014/916
DOI: 10.1109/JQE.2021.3101216
Appears in Collections:Journal Articles

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