Speed enhancement in VCSELs employing grating mirrors

Il-Sug Chung; Jesper Mørk

doi:10.1117/12.2005362

Speed enhancement in VCSELs employing grating mirrors

Authors:

Chung, Il-Sug ;
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0000-0002-6382-2795
Department of Photonics Engineering, Technical University of Denmark
Mørk, Jesper
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Department of Photonics Engineering, Technical University of Denmark

DOI:

10.1117/12.2005362

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.

Type:

Conference paper

Language:

English

Published in:

Proceedings of Spie, the International Society for Optical Engineering, 2013, Vol 8633

Keywords:

High speed; Vertical-cavity surface-emitting laser; HCG; Subwavelength

Main Research Area:

Science/technology

Publication Status:

Published

Review type:

Peer Review

Conference:

SPIE Photonics West : High Contrast Metastructures II, 2013

Submission year:

2013

Scientific Level:

Scientific

ID:

242226218

Speed enhancement in VCSELs employing grating mirrors

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