Bow-tie surface-emitting lasers

Robert Bedford; Hui Luo; Mahmoud Fallahi

doi:10.1109/68.867970

Bow-tie surface-emitting lasers

Robert Bedford, Hui Luo, Mahmoud Fallahi

Optical Sciences

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

2 Scopus citations

Abstract

In this letter we report a new design for surface emitting semiconductor lasers operating at 940 nm, incorporating a double-flare cavity, and distributed Bragg reflector (DBR) mirrors also providing surface emission. This design can take advantage of the modal behavior of the unstable resonator, and has shown very good mode control, with coherent emission from two facets in the same direction. We report preliminary performance results showing very promising characteristics including single-mode diffraction limited operation, and spectral behavior with 42 dB side-mode suppression. This design has exhibited promising results for increasing the current range between the lasing threshold and the filament threshold.

Original language	English (US)
Pages (from-to)	948-950
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	12
Issue number	8
DOIs	https://doi.org/10.1109/68.867970
State	Published - Aug 2000

ASJC Scopus subject areas

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

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10.1109/68.867970

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author = "Robert Bedford and Hui Luo and Mahmoud Fallahi",

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AU - Fallahi, Mahmoud

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AB - In this letter we report a new design for surface emitting semiconductor lasers operating at 940 nm, incorporating a double-flare cavity, and distributed Bragg reflector (DBR) mirrors also providing surface emission. This design can take advantage of the modal behavior of the unstable resonator, and has shown very good mode control, with coherent emission from two facets in the same direction. We report preliminary performance results showing very promising characteristics including single-mode diffraction limited operation, and spectral behavior with 42 dB side-mode suppression. This design has exhibited promising results for increasing the current range between the lasing threshold and the filament threshold.

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Bow-tie surface-emitting lasers

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