Highly collimated broadside emission from room-temperature GaAs distributed Bragg reflector lasers
- 1 November 1977
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 31 (9), 613-615
- https://doi.org/10.1063/1.89800
Abstract
Highly collimated laser beams have been observed to be coupled out by second‐order Bragg scattering from GaAs distributed Bragg reflector lasers. The beams are perpendicular to the waveguide plane and have an angular width of less than 1°. The diodes have a separate confinement structure and operate at room temperature with thresholds as low as 1.4 kA/cm2.Keywords
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