4 May 2001 Continuous-wave operation of phase-coupled vertical-cavity surface-emitting laser arrays
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Proceedings Volume 4286, Vertical-Cavity Surface-Emitting Lasers V; (2001) https://doi.org/10.1117/12.424798
Event: Symposium on Integrated Optics, 2001, San Jose, CA, United States
Abstract
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 anays has been achieved at 960 urn. Polarization resolved measurements revealed a stable behavior without any polarization flips in the fundamental lasingmode regime. Spectrally resolved measurements of the near- and far-field showed an abrupt transition from the fundamental super-mode with a TEM00-shaped near-field in every individual pixel with a beam divergence of 5.5°in both arraydirections to a TEM01-like super-mode with 5.5° beam divergence in one direction and 1 1° in the other direction. Measurements with high angular resolution showed full-width at half-maximum of the far-field intensity lobes as small as 0.89° for a lOxlO array.
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Fabrice Monti di Sopra, Fabrice Monti di Sopra, Marcel Brunner, Marcel Brunner, Rainer Hoevel, Rainer Hoevel, Michael Moser, Michael Moser, Eli E. Kapon, Eli E. Kapon, "Continuous-wave operation of phase-coupled vertical-cavity surface-emitting laser arrays", Proc. SPIE 4286, Vertical-Cavity Surface-Emitting Lasers V, (4 May 2001); doi: 10.1117/12.424798; https://doi.org/10.1117/12.424798
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