Effect of external reflectors on radiation profile of grating coupled surface emitting lasers

Siu Fung Yu; L. M. Zhang; R. G.S. Plumb; J. E. Carroll

doi:10.1049/ip-j.1993.0006

Effect of external reflectors on radiation profile of grating coupled surface emitting lasers

Siu Fung Yu, L. M. Zhang, R. G.S. Plumb, J. E. Carroll

Research output: Journal article publication › Journal article › Academic research › peer-review

7 Citations (Scopus)

Abstract

Grating coupled surface emitting distributed feedback lasers are analysed by our recently developed model. The model takes into account spontaneous emission, the longitudinal variation of carrier concentration and that of photon density, calculated by a self-consistent technique. The emission spectrum and near and far field radiation patterns are determined as a function of the injection current and external optical feedback. It is found that a single lobed far field radiation pattern is favoured by asymmetric coating of the facets. In addition, the phase margin to achieve a single lobed radiation profile can be increased by increasing the amplitude of the reflection.

Original language	English
Pages (from-to)	30-38
Number of pages	9
Journal	IEE proceedings. Part J, Optoelectronics
Volume	140
Issue number	1
DOIs	https://doi.org/10.1049/ip-j.1993.0006
Publication status	Published - 1 Jan 1993
Externally published	Yes

ASJC Scopus subject areas

General Engineering

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10.1049/ip-j.1993.0006

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AU - Plumb, R. G.S.

AU - Carroll, J. E.

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N2 - Grating coupled surface emitting distributed feedback lasers are analysed by our recently developed model. The model takes into account spontaneous emission, the longitudinal variation of carrier concentration and that of photon density, calculated by a self-consistent technique. The emission spectrum and near and far field radiation patterns are determined as a function of the injection current and external optical feedback. It is found that a single lobed far field radiation pattern is favoured by asymmetric coating of the facets. In addition, the phase margin to achieve a single lobed radiation profile can be increased by increasing the amplitude of the reflection.

AB - Grating coupled surface emitting distributed feedback lasers are analysed by our recently developed model. The model takes into account spontaneous emission, the longitudinal variation of carrier concentration and that of photon density, calculated by a self-consistent technique. The emission spectrum and near and far field radiation patterns are determined as a function of the injection current and external optical feedback. It is found that a single lobed far field radiation pattern is favoured by asymmetric coating of the facets. In addition, the phase margin to achieve a single lobed radiation profile can be increased by increasing the amplitude of the reflection.

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DO - 10.1049/ip-j.1993.0006

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JF - IEE proceedings. Part J, Optoelectronics

IS - 1

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Effect of external reflectors on radiation profile of grating coupled surface emitting lasers

Abstract

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