Proposed enhancement of side-mode suppression ratio in λ/4 shifted distributed feedback lasers with nonuniform diffused quantum wells

Siu Fung Yu; E. Herbert Li

doi:10.1109/68.491090

Proposed enhancement of side-mode suppression ratio in λ/4 shifted distributed feedback lasers with nonuniform diffused quantum wells

Siu Fung Yu, E. Herbert Li

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

9 Citations (Scopus)

Abstract

An enhancement of the side mode suppression ratio, by utilizing interdiffused quantum wells, of a λ/4 shifted distributed feedback laser is demonstrated theoretically. It is found that by introducing a diffusion step along the longitudinal direction of the quantum-well active region, the suppression ratio can be improved significantly for large κL (>2.6) devices. The maximum power for single longitudinal mode operation is increased by more than 50 mW.

Original language	English
Pages (from-to)	482-484
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	8
Issue number	4
DOIs	https://doi.org/10.1109/68.491090
Publication status	Published - 1 Apr 1996
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering

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10.1109/68.491090

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abstract = "An enhancement of the side mode suppression ratio, by utilizing interdiffused quantum wells, of a λ/4 shifted distributed feedback laser is demonstrated theoretically. It is found that by introducing a diffusion step along the longitudinal direction of the quantum-well active region, the suppression ratio can be improved significantly for large κL (>2.6) devices. The maximum power for single longitudinal mode operation is increased by more than 50 mW.",

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Proposed enhancement of side-mode suppression ratio in λ/4 shifted distributed feedback lasers with nonuniform diffused quantum wells

Abstract

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