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

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

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

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

Department of Photonics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

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.

Original language	English
Title of host publication	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
Editors	A.O. Fapojuwo
Pages	19-24
Number of pages	6
Publication status	Published - 2005 Dec 1
Event	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 Duration: 2005 Jul 19 → 2005 Jul 21

Publication series

Name	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

Other	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
Country/Territory	Canada
City	Banff, AB
Period	05-07-19 → 05-07-21

All Science Journal Classification (ASJC) codes

General Engineering

Cite this

Hwang, S.-K., Tian, J. M., & Lin, C. F. (2005). Nonlinear distortion in directly modulated semiconductor lasers subject to external optical injection. In A. O. Fapojuwo (Ed.), 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 (pp. 19-24). (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).

Hwang, Sheng-Kwang ; Tian, Jian Ming ; Lin, Chih Feng. / Nonlinear distortion in directly modulated semiconductor lasers subject to external optical injection. 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. editor / A.O. Fapojuwo. 2005. pp. 19-24 (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).

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title = "Nonlinear distortion in directly modulated semiconductor lasers subject to external optical injection",

abstract = "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.",

author = "Sheng-Kwang Hwang and Tian, {Jian Ming} and Lin, {Chih Feng}",

year = "2005",

month = dec,

day = "1",

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series = "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",

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editor = "A.O. Fapojuwo",

booktitle = "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",

note = "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 ; Conference date: 19-07-2005 Through 21-07-2005",

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Hwang, S-K, Tian, JM & Lin, CF 2005, Nonlinear distortion in directly modulated semiconductor lasers subject to external optical injection. in AO Fapojuwo (ed.), 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. 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, pp. 19-24, 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, 05-07-19.

Nonlinear distortion in directly modulated semiconductor lasers subject to external optical injection. / Hwang, Sheng-Kwang; Tian, Jian Ming; Lin, Chih Feng.
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. ed. / A.O. Fapojuwo. 2005. p. 19-24 (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).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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T1 - Nonlinear distortion in directly modulated semiconductor lasers subject to external optical injection

AU - Hwang, Sheng-Kwang

AU - Tian, Jian Ming

AU - Lin, Chih Feng

PY - 2005/12/1

Y1 - 2005/12/1

N2 - 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.

AB - 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.

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ER -

Hwang SK, Tian JM, Lin CF. Nonlinear distortion in directly modulated semiconductor lasers subject to external optical injection. In Fapojuwo AO, editor, 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. 2005. p. 19-24. (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).

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

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All Science Journal Classification (ASJC) codes

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