Abstract

Broad-area semiconductor lasers used for high-power applications such as material processing and pump sources feature significant spatio-temporal instabilities [1]. Most attempts to stabilize them aim at reducing the number of transverse lasing modes via injection or feedback but fail at high powers. We demonstrate a different approach for stabilization via complex interference in asymmetric cavities with chaotic ray dynamics. This approach maintains multi-mode operation and is hence compatible with high-power operation [2].

© 2019 IEEE