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Proceedings Paper

Threshold behavior of defect modes in one-dimensional active photonic crystal
Author(s): Yanling Han; Hong Wang; Zheng biao Ouyang
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Paper Abstract

Based on a model of coupling Maxwell's equations with the rate equations of electronic population, the spatial-distribution and spectrum-characteristics as well as amplified properties of defect modes such as lasing threshold, saturated output in a single-defect active photonic crystal are investigated through finite-difference time-domain method. Influences of the number of crystal periods and spatial profile on amplified feature are also analyzed. The results show that the lasing threshold and saturated output depend directly on the number of crystal periods and the spatial profile of defect modes; the defect mode with lower mode area has a low-threshold. Furthermore, the lasing threshold can be further reduced as the saturated output increases if the number of crystal periods increase. Such a feature is important for understanding of the interaction between optical gain and defect modes.

Paper Details

Date Published: 4 January 2008
PDF: 10 pages
Proc. SPIE 6831, Nanophotonics, Nanostructure, and Nanometrology II, 683115 (4 January 2008); doi: 10.1117/12.756010
Show Author Affiliations
Yanling Han, Huazhong Univ. of Science and Technology (China)
China Univ. of Geosciences (China)
Hong Wang, Shenzhen Univ. (China)
Univ. of Electronic Science and Technology of China (China)
Zheng biao Ouyang, Shenzhen Univ. (China)

Published in SPIE Proceedings Vol. 6831:
Nanophotonics, Nanostructure, and Nanometrology II
Xing Zhu; Stephen Y. Chou; Yasuhiko Arakawa, Editor(s)

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