Nonlinear Laser Dynamics with Suppressed Time-Delay Signatures by FBGs
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- Song-Sui Li
- City University of Hong Kong
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- Xiao-Zhou Li
- City University of Hong Kong
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- Jun-Ping Zhuang
- City University of Hong Kong
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- Sze-Chun Chan
- City University of Hong Kong
抄録
Chaotic dynamics in a single-mode semiconductor laser subject to optical feedback from fiber Bragg gratings (FBGs) is investigated. Obtained from the inverse Fourier transform on the magnitude of the optical spectra, the coherence function evaluates the suppression of the time-delay information. The intensity autocorrelation function time-delay signature (ACF-TDS) and coherence function time-delay signature (CF-TDS) are found to be sensitive to the FBG bandwidth. The FBG feedback with proper bandwidth and positive detuning frequency can achieve both ACF-TDS concealment and CF-TDS minimization in chaotic oscillation. Moreover, the TDS-optimized chaos can be generally obtained over a range of feedback delay times. Besides, comparing to conventional mirror feedback, the FBG feedback suppresses the ACF-TDS by more than an order of magnitude in the experiments.
収録刊行物
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- IEICE Proceeding Series
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IEICE Proceeding Series 47 45-48, 2015-12-01
The Institute of Electronics, Information and Communication Engineers
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詳細情報 詳細情報について
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- CRID
- 1390001277360337280
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- NII論文ID
- 230000009055
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- ISSN
- 21885079
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可