Multi-beam multi-wavelength semiconductor lasers

Nanfang Yu, Mikhail Kats, Christian Pflügl, Markus Geiser, Qi Jie Wang, Mikhail A. Belkin, Federico Capasso, Milan Fischer, Andreas Wittmann, J́rôme Faist, Tadataka Edamura, Shinichi Furuta, Masamichi Yamanishi, Hirofumi Kan

Research output: Contribution to journalArticlepeer-review

32 Scopus citations


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.

Original languageEnglish
Article number161108
JournalApplied Physics Letters
Issue number16
StatePublished - 2009
Externally publishedYes


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