On-axis far-field emission from two-dimensional phase-locked vertical cavity surface-emitting laser arrays with an integrated phase-corrector

Journal Article · Mon Sep 28 00:00:00 EDT 1992 · Applied Physics Letters; (United States)

DOI:https://doi.org/10.1063/1.107523· OSTI ID:7264993

Warren, M E; Gourley, P L; Hadley, G R; Vawter, G A; Brennan, T M; Hammons, B E; Lear, K L ^[1]

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1. Sandia National Laboratories, Albuquerque, New Mexico 87185 (United States)

We have fabricated large, two-dimensional (2D) arrays of optically pumped, phase-locked vertical cavity surface-emitting lasers that emit more than 50% of their light in a central on-axis lobe. The emission of the arrays was modified from the usual four-lobed far-field of 2D coupled arrays by incorporation of a binary phase-shift mask on the surface of the array. The array consists of Fabry--Perot resonators comprising GaAs/AlGaAs quantum wells surrounded by AlAs/AlGaAs quarterwave mirrors with a multiple order AlGaAs phase-delay layer on the top mirror stack. The phase-shift layer was etched away on alternating elements of the array. The resulting on-axis emission had an angular width of 2{degree} for an array of approximately 100 elements.

• DOE Contract Number: AC04-76DP00789
• OSTI ID: 7264993
• Journal Information: Applied Physics Letters; (United States), Journal Name: Applied Physics Letters; (United States) Vol. 61:13; ISSN APPLA; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
426002* -- Engineering-- Lasers & Masers-- (1990-)
COUPLING
DESIGN
FABRY-PEROT INTERFEROMETER
HETEROJUNCTIONS
INTERFEROMETERS
JUNCTIONS
LASERS
MEASURING INSTRUMENTS
OPTICAL PUMPING
PHASE SHIFT
PUMPING
SEMICONDUCTOR DEVICES
SEMICONDUCTOR JUNCTIONS
SEMICONDUCTOR LASERS
SOLID STATE LASERS