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Proceedings Paper

Push-pull modulation of lateral coupling of dual VCSEL cavities using a bow-tie shape
Author(s): Hamed Dalir; Akihiro Matsutani; Fumio Koyama
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Paper Abstract

We propose the lateral coupling of dual VCSEL cavities using a bow-tie shape connection for increasing the modulation bandwidth. The 3-D modeling shows no-noticeable radiation loss when two oxide-defined VCSEL cavities are coherently coupled. Transverse-mode switching offers a unique modulation concept that makes intensity modulation while total photon density inside the coupled cavities is unchanged under push-pull current modulation. Large modulation bandwidth free from relaxation oscillation frequencies can be expected. We fabricated 980nm laterally coupled cavity VCSELs with a bow-tie shape oxide aperture and demonstrated the transverse-mode switching under push-pull operations.

Paper Details

Date Published: 13 March 2013
PDF: 7 pages
Proc. SPIE 8639, Vertical-Cavity Surface-Emitting Lasers XVII, 86390W (13 March 2013); doi: 10.1117/12.2003692
Show Author Affiliations
Hamed Dalir, Tokyo Institute of Technology (Japan)
Akihiro Matsutani, Tokyo Institute of Technology (Japan)
Fumio Koyama, Tokyo Institute of Technology (Japan)

Published in SPIE Proceedings Vol. 8639:
Vertical-Cavity Surface-Emitting Lasers XVII
Kent D. Choquette; James K. Guenter, Editor(s)

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