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Proceedings Paper

Bandwidth enhancement and time-delay signature suppression of chaotic signal from an optical feedback semiconductor laser by using cross phase modulation in a highly nonlinear fiber loop mirror
Author(s): Liang-Yan Wang; Zhu-Qiong Zhong; Zheng-Mao Wu; Dong Lu; Xi Chen; Jun Chen; Guang-Qiong Xia
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Paper Abstract

Based on a nonlinear fiber loop mirror (NOLM) composed of a fiber coupler (FC) and a highly nonlinear fiber (HNLF), a scheme is proposed to simultaneously realize the bandwidth enhancement and the time-delay signature (TDS) suppression of a chaotic signal generated from an external cavity optical feedback semiconductor laser. The simulation results show that, after passing through the NOLM, the bandwidth of chaotic signal can be efficiently enhanced and the TDS can be well suppressed under suitable operation parameters. Furthermore, the influences of the power-splitting ratio of the FC, the averaged power of the chaotic signal entering into the FC and the length of the HNLF on the chaotic bandwidth and TDS are analyzed, and the optimized parameters are determined.

Paper Details

Date Published: 9 November 2016
PDF: 6 pages
Proc. SPIE 10017, Semiconductor Lasers and Applications VII, 100170V (9 November 2016); doi: 10.1117/12.2241494
Show Author Affiliations
Liang-Yan Wang, Southwest Univ. (China)
Zhu-Qiong Zhong, Southwest Univ. (China)
Zheng-Mao Wu, Southwest Univ. (China)
Dong Lu, Southwest Univ. (China)
Xi Chen, Southwest Univ. (China)
Jun Chen, Southwest Univ. (China)
Guang-Qiong Xia, Southwest Univ. (China)

Published in SPIE Proceedings Vol. 10017:
Semiconductor Lasers and Applications VII
Ninghua Zhu; Werner H. Hofmann, Editor(s)

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