Rayleigh backscattering and extinction ratio study of optically injection-locked 1.55m VCSELs

E. Wong; X. Zhao; C. J. Chang-Hasnain; W. Hofmann; M. C. Amann

doi:10.1049/el:20073446

Rayleigh backscattering and extinction ratio study of optically injection-locked 1.55m VCSELs

E. Wong, X. Zhao, C. J. Chang-Hasnain, W. Hofmann, M. C. Amann

Chair of Semiconductor Technology

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15 Scopus citations

Abstract

The performance dependence of optically injection-locked 1.55m VCSELs by downstream signals in a bidirectional optical link on the degree of Rayleigh backscattered signal and modulation depth of the master DFB laser is studied. Such a study is important for operation in bidirectional WDM-PONs. Error-free upstream performance is achieved when the upstream signal to Rayleigh backscattering ratio is greater than 13.4dB, and with minimal dependence on the downstream extinction ratio. The frequency response of the OIL-VCSEL explains for the first time the suppression of the modulated downstream signal at the VCSEL input, enabling stable injection locking comparable to that of CW master injection.

Original language	English
Pages (from-to)	182-183
Number of pages	2
Journal	Electronics Letters
Volume	43
Issue number	3
DOIs	https://doi.org/10.1049/el:20073446
State	Published - 2007

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abstract = "The performance dependence of optically injection-locked 1.55m VCSELs by downstream signals in a bidirectional optical link on the degree of Rayleigh backscattered signal and modulation depth of the master DFB laser is studied. Such a study is important for operation in bidirectional WDM-PONs. Error-free upstream performance is achieved when the upstream signal to Rayleigh backscattering ratio is greater than 13.4dB, and with minimal dependence on the downstream extinction ratio. The frequency response of the OIL-VCSEL explains for the first time the suppression of the modulated downstream signal at the VCSEL input, enabling stable injection locking comparable to that of CW master injection.",

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AU - Wong, E.

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AU - Hofmann, W.

AU - Amann, M. C.

PY - 2007

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AB - The performance dependence of optically injection-locked 1.55m VCSELs by downstream signals in a bidirectional optical link on the degree of Rayleigh backscattered signal and modulation depth of the master DFB laser is studied. Such a study is important for operation in bidirectional WDM-PONs. Error-free upstream performance is achieved when the upstream signal to Rayleigh backscattering ratio is greater than 13.4dB, and with minimal dependence on the downstream extinction ratio. The frequency response of the OIL-VCSEL explains for the first time the suppression of the modulated downstream signal at the VCSEL input, enabling stable injection locking comparable to that of CW master injection.

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JO - Electronics Letters

JF - Electronics Letters

IS - 3

ER -

Rayleigh backscattering and extinction ratio study of optically injection-locked 1.55m VCSELs

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