Single mode broad area distributed Bragg reflector ring oscillators

Kenneth M. Dzurko; Donald R. Scifres; Amos Hardy; David F. Welch; R. G. Waarts

doi:10.1063/1.108173

Single mode broad area distributed Bragg reflector ring oscillators

Kenneth M. Dzurko, Donald R. Scifres, Amos Hardy, David F. Welch, R. G. Waarts

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

Abstract

A large aperture, spatially coherent, single frequency semiconductor ring laser is demonstrated for the first time. Two diffraction gratings oriented orthogonally to each other are used to uniquely select a single broad area mode which oscillates at a single wavelength. Spatial coherence across a 411 μm output aperture is observed, giving a diffraction limited output beam measuring 0.2°×0.135°. The surface emitting ring oscillators contain strained InGaAs/GaAs quantum well active regions and operate at 1012 nm to pulsed output powers exceeding 500 mW with threshold current densities under 300 A/cm².

Original language	English
Pages (from-to)	2389-2391
Number of pages	3
Journal	Applied Physics Letters
Volume	61
Issue number	20
DOIs	https://doi.org/10.1063/1.108173
State	Published - 1992
Externally published	Yes

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title = "Single mode broad area distributed Bragg reflector ring oscillators",

abstract = "A large aperture, spatially coherent, single frequency semiconductor ring laser is demonstrated for the first time. Two diffraction gratings oriented orthogonally to each other are used to uniquely select a single broad area mode which oscillates at a single wavelength. Spatial coherence across a 411 μm output aperture is observed, giving a diffraction limited output beam measuring 0.2°×0.135°. The surface emitting ring oscillators contain strained InGaAs/GaAs quantum well active regions and operate at 1012 nm to pulsed output powers exceeding 500 mW with threshold current densities under 300 A/cm2.",

author = "Dzurko, {Kenneth M.} and Scifres, {Donald R.} and Amos Hardy and Welch, {David F.} and Waarts, {R. G.}",

year = "1992",

doi = "10.1063/1.108173",

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AU - Scifres, Donald R.

AU - Hardy, Amos

AU - Welch, David F.

AU - Waarts, R. G.

PY - 1992

Y1 - 1992

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AB - A large aperture, spatially coherent, single frequency semiconductor ring laser is demonstrated for the first time. Two diffraction gratings oriented orthogonally to each other are used to uniquely select a single broad area mode which oscillates at a single wavelength. Spatial coherence across a 411 μm output aperture is observed, giving a diffraction limited output beam measuring 0.2°×0.135°. The surface emitting ring oscillators contain strained InGaAs/GaAs quantum well active regions and operate at 1012 nm to pulsed output powers exceeding 500 mW with threshold current densities under 300 A/cm2.

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Single mode broad area distributed Bragg reflector ring oscillators

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