Multi-beam multi-wavelength semiconductor lasers

Nanfang Yu; Kats, Mikhail; Pflügl, Christian; Geiser, Markus; Qi Jie Wang; Belkin, Mikhail A.; Capasso, Federico; Fischer, Milan; Wittmann, Andreas; Faist, Jérôme; Edamura, Tadataka; Furuta, Shinichi; Yamanishi, Masamichi; Kan, Hirofumi
October 2009
Applied Physics Letters;10/19/2009, Vol. 95 Issue 16, p161108
Academic Journal
Multibeam emission and spatial wavelength demultiplexing in semiconductor lasers by patterning their facets with plasmonic structures is reported. Specifically, a single-wavelength laser was made to emit beams in two directions by defining on its facet two metallic gratings with different periods. The output of a dual-color laser was spatially separated according to wavelength by using a single metallic grating. The designs can be integrated with a broad range of active or passive optical components for applications such as interferometry and demultiplexing.


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