Coherent, monolithic two-dimensional (10 x 10) laser arrays using grating surface emission

Journal Article · Mon Nov 28 04:00:00 EST 1988 · Appl. Phys. Lett.; (United States)

DOI:https://doi.org/10.1063/1.100293· OSTI ID:6742554

Evans, G A; Carlson, N W; Hammer, J M; Lurie, M; Butler, J K; Palfrey, S L; Amantea, R; Carr, L A; Hawrylo, F Z; James, E A; others, and

Two-dimensional, coherent AlGaAs laser arrays consisting of 100 (10 x 10) active elements have been fabricated using single quantum well laser structures. A surface relief grating is used both for feedback and outcoupling. The elements of the array are index-guided ridge lasers. In one array design, the elements are coupled laterally by evanescent field overlap while in the second design, the coupling is by Y branches. Longitudinal coherence is achieved by injection coupling. The far field, emanating from a 60 ..mu..m by 5 mm aperture, measures 0.01/sup 0/ x 1/sup 0/. Both types of arrays emit more than 1 W peak power. The mode spectrum of the emitted power is contained in a approx.2--3 A wavelength interval at approx.1 W.

• Research Organization: David Sarnoff Research Center, CN 5300, Princeton, New Jersey 08543-5300
• OSTI ID: 6742554
• Journal Information: Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 53:22; ISSN APPLA
• Country of Publication: United States
• Language: English

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42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
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