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Proceedings Paper

Design of high-power and narrow divergence angle photonic crystal surface emitting lasers
Author(s): Xiaojie Guo; Yufei Wang; Aiyi Qi; Lei Liu; Fan Qi; W. H. Zheng
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Paper Abstract

We design photonic crystal (PC) array surface emitting lasers with large-area coherence. The structure has six-fold rotational symmetry. By finite-difference time-domain method, we investigate the far-field characteristics of the individual element and the array. We demonstrate theoretically that the coherent PC array has lower far-field divergence angles and higher power compared to those of individual elements. Our PC array exhibits strong leaky coupling which has high mode stability and high intermodal discrimination. Thus, the coherent PC array shows great potential for high power low divergence in-phase surface laser emitting.

Paper Details

Date Published: 3 December 2014
PDF: 6 pages
Proc. SPIE 9267, Semiconductor Lasers and Applications VI, 926707 (3 December 2014); doi: 10.1117/12.2073566
Show Author Affiliations
Xiaojie Guo, Institute of Semiconductors (China)
Yufei Wang, Institute of Semiconductors (China)
Aiyi Qi, Institute of Semiconductors (China)
Lei Liu, Institute of Semiconductors (China)
Fan Qi, Institute of Semiconductors (China)
W. H. Zheng, Institute of Semiconductors (China)

Published in SPIE Proceedings Vol. 9267:
Semiconductor Lasers and Applications VI
Ninghua Zhu; Werner H. Hofmann, Editor(s)

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