Bifurcation scenario leading to multiple pulse emission in VECSELs

Jan P. Hausen; Stefan Meinecke; Kathy Lüdge

doi:10.1117/12.2513751

4 March 2019 Bifurcation scenario leading to multiple pulse emission in VECSELs

Jan P. Hausen, Stefan Meinecke, Kathy Lüdge

Proceedings Volume 10901, Vertical External Cavity Surface Emitting Lasers (VECSELs) IX; 109010F (2019) https://doi.org/10.1117/12.2513751
Event: SPIE LASE, 2019, San Francisco, California, United States

Abstract

Depending on the operation conditions of mode-locked semiconductor lasers different dynamical regimes exist and are well understood. However, if the amplifying and the absorbing material are embedded in a V-shaped external cavity, new multi-pulse (pulse cluster) solutions emerge. We theoretically model such a device by a system of multi-delay differential equations and apply numeric integration as well as path-continuation methods to understand the underlying bifurcation scenarios. Our investigations indicate that by repositioning the gain-chip, the laser can be operated in different stable regions e.g. fundamental, higher harmonic or multi-pulse mode-locking. Furthermore, our bifurcation analysis shows how the multi-pulse solutions evoke from the fundamental mode-locking branch and that different operation regimes can be favored by introducing an asymmetry to the cavity.

Conference Presentation

Citation Download Citation

Jan P. Hausen, Stefan Meinecke, and Kathy Lüdge "Bifurcation scenario leading to multiple pulse emission in VECSELs", Proc. SPIE 10901, Vertical External Cavity Surface Emitting Lasers (VECSELs) IX, 109010F (4 March 2019); https://doi.org/10.1117/12.2513751

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