Nonlinear distortion in directly modulated semiconductor lasers subject to external optical injection

Sheng-Kwang Hwang, Jian Ming Tian, Chih Feng Lin

研究成果: Conference contribution

摘要

Nonlinear distortion in injection-locked semiconductor lasers under direct modulation is numerically studied as a function of operational parameters. Significant reduction up to 25 dB in nonlinear distortion is observed compared with the free-running condition. The reduction in distortion is rather uniform over a broad range of modulation power at a fixed modulation frequency. The distortion reduction, however, varies dramatically with modulation frequency at a fixed modulation power due to the resonance effect. The reduction in distortion generally decreases with bias current level. The reduction in nonlinear distortion as a function of injection strength and detuning frequency is observed for the entire region of stable injection locking, suggesting that the injection locking scheme is a very effective method for nonlinear distortion reduction. However, the reduction for different nonlinear distortions is different and complicated, implying a trade-off for reduction in different nonlinear distortions to simultaneously happen.

原文English
主出版物標題Proceedings of the IASTED International Conference on Optical Communication Systems and Networks, as part of the Fifth IASTED Int. Multi-Conference on Wireless and Optical Commun., OCSN 2005
編輯A.O. Fapojuwo
頁面19-24
頁數6
出版狀態Published - 2005 十二月 1
事件IASTED International Conference on Optical Communication Systems and Networks, as part of the Fifth IASTED Int. Multi-Conference on Wireless and Optical Commun., OCSN 2005 - Banff, AB, Canada
持續時間: 2005 七月 192005 七月 21

出版系列

名字Proceedings of the IASTED International Conference on Optical Communication Systems and Networks, as part of the Fifth IASTED Int. Multi- Conference on Wireless and Optical Communications, OCSN 2005

Other

OtherIASTED International Conference on Optical Communication Systems and Networks, as part of the Fifth IASTED Int. Multi-Conference on Wireless and Optical Commun., OCSN 2005
國家/地區Canada
城市Banff, AB
期間05-07-1905-07-21

All Science Journal Classification (ASJC) codes

  • 工程 (全部)

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