Narrow lateral far field divergence obtained with spatially modulated broad-area lasers
A. Zeghuzi1, J.-P. Koester1, M. Radziunas2, H. Christopher1, H. Wenzel1, A. Knigge1
Published in:
27th International Semiconductor Laser Conference (ISLC), Potsdam, Germany, Oct. 10-14, ISBN 978-1-6654-4133-9, TuP2.6 (2021).
Abstract:
A laser design combining longitudinal-lateral gain-loss modulation with additional phase tailoring is presented. Under pulsed operation simulations predict a single-lobed far field angle of Θ40% = 0.4° at 100 A and far-field measurements confirm a substantial enhancement of radiation within the central angular range.
1 Ferdinand-Braun-Institut gGmbH, Leibniz-Institut für Höchstfrequenztechnik, 12489 Berlin, Germany
2 Weierstrass Institute for Applied Analysis and Stochastics, 10117 Berlin, Germany
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