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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 |
Files in This Item:
File | Description | Size | Format | |
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10.1109-JQE.2021.3101216.pdf | 204.9 kB | Adobe PDF | View/Open |
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