High-power seven-element grating surface emitting diode laser array with 0.012° far-field angle

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 puls...

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Bibliographic Details
Published in:Applied physics letters 1988-03, Vol.52 (12), p.939-941
Main Authors: CARLSON, N. W, EVANS, G. A, TRUXAL, D. A, SHEALY, J. R, CHINN, S. R, ZORY, P. S, HAMMER, J. M, LURIE, M, CARR, L. A, HAWRYLO, F. Z, JAMES, E. A, KAISER, C. J, JIRK, J. B, REICHERT, W. F
Format: Article
Language:English
Subjects:
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Lasers
Optics
Physics
Semiconductor lasers
laser diodes
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Summary: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%.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.99234