Abstract
Most work to date on semiconductor laser arrays for high power operation has focused on the evanescent coupling of closely spaced positive index waveguide elements, where the optical field is mostly confined to the regions of the individual elements either by gain-guiding or a real index step. To achieve phase-locked operation in the fundamental inphase supermode, arrays of closely spaced index depressions (antiguides) have been studied in the AlGaAs/GaAs materials system.1
© 1990 Optical Society of America
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