Numerical analysis of external feedback concepts for spectral stabilization of high-power broad-area semiconductor lasers

Carlo Holly; Stefan Hengesbach; Martin Traub; Dieter Hoffmann

doi:10.1117/12.2037053

7 March 2014 Numerical analysis of external feedback concepts for spectral stabilization of high-power broad-area semiconductor lasers

Carlo Holly, Stefan Hengesbach, Martin Traub, Dieter Hoffmann

Author Affiliations +

Proceedings Volume 8965, High-Power Diode Laser Technology and Applications XII; 89650K (2014) https://doi.org/10.1117/12.2037053
Event: SPIE LASE, 2014, San Francisco, California, United States

Abstract

Four different external resonator concepts including VBGs for spectral stabilization of HPDLs are modelled and numerically evaluated to be compared to each other with respect to stabilization efficiency and sensitivity to the “smile-error". The coupled resonators including the external system and the diode laser are solved with a Fox-Li approach. The paper gives a brief summary about the applied simulation model and proceeds with the results for the different feedback concepts. The effective reflectivity, losses in the optical system, losses due to the back-coupling into the waveguide and the averaged optical confinement factor are calculated.

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Carlo Holly, Stefan Hengesbach, Martin Traub, and Dieter Hoffmann "Numerical analysis of external feedback concepts for spectral stabilization of high-power broad-area semiconductor lasers", Proc. SPIE 8965, High-Power Diode Laser Technology and Applications XII, 89650K (7 March 2014); https://doi.org/10.1117/12.2037053

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