期刊
APPLIED PHYSICS LETTERS
卷 77, 期 15, 页码 2283-2285出版社
AMER INST PHYSICS
DOI: 10.1063/1.1316772
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Coupled arrays of vertical-cavity surface-emitting lasers were realized by patterning the reflectivity of the top-distributed Bragg reflector using a phase-matching layer and a metal grid. For improved current injection and better heat dissipation the devices were selectively oxidized. Continuous-wave room-temperature operation of these arrays has been achieved at 960 nm. Near- and far-field measurements confirm the phase-coupling in a typical out-of-phase mode pattern. Analysis of the differential efficiency reveals a strong decrease when the number of lasing pixels and hence the mesa size is increased. (C) 2000 American Institute of Physics. [S0003-6951(00)02741-8].
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