10 May 2012 Theoretical analysis of a multi-stripe laser array with external off-axis feedback
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Abstract
We investigate the dynamical properties of broad area lasers with a V-shaped external cavity formed by two off-axis feedback mirrors that allow to select a single transverse mode with transversely modulated intensity distribution. We derive and study a reduced model of a multi-stripe array. Bifurcation analysis of this system reveals the existence of single mode and multimode instabilities leading to a periodic and irregular time dependence of the output intensity. We observe within reduced model the multimode instability leading to a periodic regime, where the fields traveling in the opposite directions oscillate in antiphase. This result is in agreement with that obtained with the help of 2+1 dimensional traveling wave model.
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A. Pimenov, A. Pimenov, G. Kozyreff, G. Kozyreff, V. Z. Tronciu, V. Z. Tronciu, A. G. Vladimirov, A. G. Vladimirov, "Theoretical analysis of a multi-stripe laser array with external off-axis feedback", Proc. SPIE 8432, Semiconductor Lasers and Laser Dynamics V, 843212 (10 May 2012); doi: 10.1117/12.921847; https://doi.org/10.1117/12.921847
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