Conference paper
Speed enhancement in VCSELs employing grating mirrors
In
Proceedings of Spie - the International Society for Optical Engineering
—
2013, Volume 8633, pp. 863308-863308-7
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.
| Language: | English |
|---|---|
| Publisher: | SPIE |
| Year: | 2013 |
| Pages: | 863308-863308-7 |
| Proceedings: | SPIE Photonics West : High Contrast Metastructures II |
| ISBN: | 081949402X , 081949402x and 9780819494023 |
| ISSN: | 1996756x and 0277786x |
| Types: | Conference paper |
| DOI: | 10.1117/12.2005362 |
| ORCIDs: | Chung, Il-Sug and Mørk, Jesper |
