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Proceedings Paper

Modulation enhancements for photonic crystal VCSELs
Author(s): Harshil Dave; Stewart T. M. Fryslie; José E. Schutt-Ainé; Kent D. Choquette
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Paper Abstract

We have designed and fabricated single mode proton-implanted photonic crystal vertical-cavity surface-emitting lasers and subsequently performed DC and small signal modulation analysis. Impedance characteristics and electrical parasitics are studied for various photonic crystal designs to understand factors which limit high speed modulation. Photonic crystal designs are found to have low differential resistance, but high parasitic capacitance. By including a diffusion capacitance term in the modulation response equation, scattering parameter fitting suggests the diffusion capacitance to be the limiting factor of intensity modulation. Extracted parameters from DC, impedance, and modulation response measurements are cross-checked to verify accuracy.

Paper Details

Date Published: 15 February 2017
PDF: 8 pages
Proc. SPIE 10122, Vertical-Cavity Surface-Emitting Lasers XXI, 1012207 (15 February 2017); doi: 10.1117/12.2256993
Show Author Affiliations
Harshil Dave, Univ. of Illinois at Urbana-Champaign (United States)
Stewart T. M. Fryslie, Univ. of Illinois at Urbana-Champaign (United States)
José E. Schutt-Ainé, Univ. of Illinois at Urbana-Champaign (United States)
Kent D. Choquette, Univ. of Illinois at Urbana-Champaign (United States)

Published in SPIE Proceedings Vol. 10122:
Vertical-Cavity Surface-Emitting Lasers XXI
Kent D. Choquette; Chun Lei, Editor(s)

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