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Proceedings Paper

Traveling wave model-based analysis of tapered broad-area lasers
Author(s): J.-P. Koester; M. Radziunas; A. Zeghuzi; H. Wenzel; A. Knigge
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Paper Abstract

We present simulation results showing the impact of a longitudinal linearly varying electrical contact width on intra-cavity intensity, carrier density and temperature distributions of broad-area lasers. In addition, the impact of index guiding trenches on these internal distributions is investigated. The simulations were performed using a time-dependent traveling wave model which takes all relevant physical effects into account. We show that a tapered contact area results in a reduced longitudinal intensity inhomogeneity as well as longitudinal spatial hole burning, at the cost of an increased temperature towards the front facet. Index guiding trenches were found to effectively prevent lateral intensity modulation as well as lateral carrier accumulation near the contact edges at the front facet.

Paper Details

Date Published: 2 March 2020
PDF: 10 pages
Proc. SPIE 11274, Physics and Simulation of Optoelectronic Devices XXVIII, 112740I (2 March 2020); doi: 10.1117/12.2537015
Show Author Affiliations
J.-P. Koester, Ferdinand-Braun-Institut (Germany)
M. Radziunas, Weierstrass Institut (Germany)
A. Zeghuzi, Ferdinand-Braun-Institut (Germany)
H. Wenzel, Ferdinand-Braun-Institut (Germany)
A. Knigge, Ferdinand-Braun-Institut (Germany)

Published in SPIE Proceedings Vol. 11274:
Physics and Simulation of Optoelectronic Devices XXVIII
Bernd Witzigmann; Marek Osiński; Yasuhiko Arakawa, Editor(s)

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