Theoretical analysis of wavelength tuning in distributed-feedback lasers by quantum-well intermixing

K. S. Chan; L. Zhan; E. Y.B. Pun

doi:10.1109/68.950734

Theoretical analysis of wavelength tuning in distributed-feedback lasers by quantum-well intermixing

K. S. Chan^*
, L. Zhan
, E. Y.B. Pun

^*Corresponding author for this work

City University of Hong Kong

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

Wavelength tuning in distributed-feedback (DFB) lasers using quantum-well intermixing is analyzed. A 0.42-nm tuning range is obtained when the bandgap is blue-shifted by 5.9 nm, and this value agrees well with the experimental value of 0.36 nm. The limitation of the tuning range is also discussed, and is because of the increase in carrier density that raises the gain above the threshold after intermixing. The dependence of wavelength shift on bandgap blueshift is not affected by the details of the intermixing process. A maximum tuning range of 3.5 nm is predicted, demonstrating that after device fabrication intermixing process can be used to adjust DFB lasers operating wavelengths to match the predefined wavelength channels of wavelength-division-multiplexing system.

Original language	English
Pages (from-to)	1058-1060
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	13
Issue number	10
DOIs	https://doi.org/10.1109/68.950734
State	Published - Oct 2001
Externally published	Yes

Keywords

Distributed-feedback lasers
Quantum-well intermixing
Semiconductor laser modeling
Wavelength-division multiplexing

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10.1109/68.950734

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title = "Theoretical analysis of wavelength tuning in distributed-feedback lasers by quantum-well intermixing",

abstract = "Wavelength tuning in distributed-feedback (DFB) lasers using quantum-well intermixing is analyzed. A 0.42-nm tuning range is obtained when the bandgap is blue-shifted by 5.9 nm, and this value agrees well with the experimental value of 0.36 nm. The limitation of the tuning range is also discussed, and is because of the increase in carrier density that raises the gain above the threshold after intermixing. The dependence of wavelength shift on bandgap blueshift is not affected by the details of the intermixing process. A maximum tuning range of 3.5 nm is predicted, demonstrating that after device fabrication intermixing process can be used to adjust DFB lasers operating wavelengths to match the predefined wavelength channels of wavelength-division-multiplexing system.",

keywords = "Distributed-feedback lasers, Quantum-well intermixing, Semiconductor laser modeling, Wavelength-division multiplexing",

author = "Chan, \{K. S.\} and L. Zhan and Pun, \{E. Y.B.\}",

year = "2001",

month = oct,

doi = "10.1109/68.950734",

language = "英语",

volume = "13",

pages = "1058--1060",

journal = "IEEE Photonics Technology Letters",

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T1 - Theoretical analysis of wavelength tuning in distributed-feedback lasers by quantum-well intermixing

AU - Chan, K. S.

AU - Zhan, L.

AU - Pun, E. Y.B.

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Y1 - 2001/10

N2 - Wavelength tuning in distributed-feedback (DFB) lasers using quantum-well intermixing is analyzed. A 0.42-nm tuning range is obtained when the bandgap is blue-shifted by 5.9 nm, and this value agrees well with the experimental value of 0.36 nm. The limitation of the tuning range is also discussed, and is because of the increase in carrier density that raises the gain above the threshold after intermixing. The dependence of wavelength shift on bandgap blueshift is not affected by the details of the intermixing process. A maximum tuning range of 3.5 nm is predicted, demonstrating that after device fabrication intermixing process can be used to adjust DFB lasers operating wavelengths to match the predefined wavelength channels of wavelength-division-multiplexing system.

AB - Wavelength tuning in distributed-feedback (DFB) lasers using quantum-well intermixing is analyzed. A 0.42-nm tuning range is obtained when the bandgap is blue-shifted by 5.9 nm, and this value agrees well with the experimental value of 0.36 nm. The limitation of the tuning range is also discussed, and is because of the increase in carrier density that raises the gain above the threshold after intermixing. The dependence of wavelength shift on bandgap blueshift is not affected by the details of the intermixing process. A maximum tuning range of 3.5 nm is predicted, demonstrating that after device fabrication intermixing process can be used to adjust DFB lasers operating wavelengths to match the predefined wavelength channels of wavelength-division-multiplexing system.

KW - Distributed-feedback lasers

KW - Quantum-well intermixing

KW - Semiconductor laser modeling

KW - Wavelength-division multiplexing

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DO - 10.1109/68.950734

M3 - 文章

AN - SCOPUS:0035472864

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JO - IEEE Photonics Technology Letters

JF - IEEE Photonics Technology Letters

IS - 10

ER -

Theoretical analysis of wavelength tuning in distributed-feedback lasers by quantum-well intermixing

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Keywords

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