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Proceedings Paper

High contrast grating for spatial mode filtering and mode control of VCSELs
Author(s): Fumio Koyama
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Paper Abstract

High contrast gratings (HCG) have various unique features such as broadband high reflections, high-Q resonance, spatial control of optical phase and so on. We focus on the angular dependence of HCG, which can be managed by designing grating parameters. The angular dependence of HCG is much larger than that of conventional quarter-wavelength stack mirrors while keeping their broadband high reflections. The engineered angular dependence can be useful for spatial mode MUX/DEMUX devices. A possibility of spatial mode demultiplexer based on HCG hollow waveguides is suggested for use in optical interconnects with spatial mode multiplexing. Also, we discuss the transverse mode control of HCG-loaded VCSELs.

Paper Details

Date Published: 23 February 2012
PDF: 8 pages
Proc. SPIE 8270, High Contrast Metastructures, 827005 (23 February 2012); doi: 10.1117/12.910775
Show Author Affiliations
Fumio Koyama, Tokyo Institute of Technology (Japan)


Published in SPIE Proceedings Vol. 8270:
High Contrast Metastructures
Connie J. Chang-Hasnain; Fumio Koyama; Alan Eli Willner; Weimin Zhou, Editor(s)

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