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Proceedings Paper

Optimization of VCSELs incorporating monolithic subwavelength high-refractive-index contrast surface grating mirrors
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Paper Abstract

We present results of computer simulations of vertical cavity surface emitting lasers (VCSELs) using novel, highreflectivity monolithic high refractive-index contrast grating (MHCG) mirrors and their more advanced version, partially covered by a thin metal layer - metallic MHCG (mMHCG) mirrors. The first experimental realization of this new class of mirrors is presented and discussed. We show that the metal layer does not deteriorate the high reflectivity of an mMHCG mirror, but in contrary, is a crucial element which allows high reflectivity and additionally opens a way for a more efficient electrical pumping of a VCSEL. Comparison of results of thermal-electrical-carrier-gain self-consistent simulations of both MHCG- and mMHCG-based VCSELs is presented and discussed. It is shown that using mHCG mirror as a top mirror of a VCSEL improves electrical characteristics and greatly decreases the differential resistance of the device.

Paper Details

Date Published: 20 February 2017
PDF: 8 pages
Proc. SPIE 10113, High Contrast Metastructures VI, 101130E (20 February 2017); doi: 10.1117/12.2253096
Show Author Affiliations
Marcin Gębski, Lodz Univ. of Technology (Poland)
Technische Univ. Berlin (Germany)
Magdalena Marciniak, Lodz Univ. of Technology (Poland)
Technische Univ. Berlin (Germany)
Maciej Dems, Lodz Univ. of Technology (Poland)
Tomasz Czyszanowski, Lodz Univ. of Technology (Poland)
James A. Lott, Technische Univ. Berlin (Germany)

Published in SPIE Proceedings Vol. 10113:
High Contrast Metastructures VI
Connie J. Chang-Hasnain; Andrei Faraon; Fumio Koyama; Weimin Zhou, Editor(s)

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