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Proceedings Paper

Speed enhancement in VCSELs employing grating mirrors
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Paper Abstract

In recent years, various approaches to improve the speed of directly modulated vertical-cavity surface-emitting lasers (VCSELs) have been reported and demonstrated good improvement. In this paper, we propose and numerically investigate a new possibility of using high-index-contrast grating (HCG) as mirror for VCSELs. By changing the grating design, one can control the reflection delay of the grating mirror, enabling the control of cavity photon lifetime. On the other hand, short energy penetration depth of the HCG results in smaller modal volume, compared to DBR VCSELs. An example structure shows that the HCG VCSEL has a 30-% higher 3-dB bandwidth than the DBR VCSEL.

Paper Details

Date Published: 15 March 2013
PDF: 7 pages
Proc. SPIE 8633, High Contrast Metastructures II, 863308 (15 March 2013); doi: 10.1117/12.2005362
Show Author Affiliations
Il-Sug Chung, Technical Univ. of Denmark (Denmark)
Jesper Mørk, Technical Univ. of Denmark (Denmark)


Published in SPIE Proceedings Vol. 8633:
High Contrast Metastructures II
Connie J. Chang-Hasnain; Fumio Koyama; Alan Eli Willner; Weimin Zhou, Editor(s)

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