High-power seven-element grating surface emitting diode laser array with 0.012° far-field angle
- 21 March 1988
- journal article
- conference paper
- Published by AIP Publishing in Applied Physics Letters
- Vol. 52 (12) , 939-941
- https://doi.org/10.1063/1.99234
Abstract
A coherent seven-element grating surface emitting diode laser array with a predominant single-lobe far-field pattern having an angular divergence of 0.012° has been demonstrated. The extent of the emitting aperture was 4 mm, and the beam divergence was within 10% of the diffraction limit. Under pulsed operation the array had a peak output power of over 400 mW and a differential quantum efficiency of 15%.Keywords
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