Publication Type
Journal Article
Version
acceptedVersion
Publication Date
2-2007
Abstract
An integrated parabolic lens capable of introducing a diverging effect to the optical mode propagating within the cavity of a tapered laser is proposed and demonstrated. This idea allows broader high-power beams to be generated by shorter cavities. Diverging lenses with etch depths of 0.13 and 0.27 mum are implemented, with 12 (9.5%) and 16.8 mum (13.3%) overall broadening of the near-fields widths measured at 1/e2 intensity. The peak output power as well as the threshold current is found to increase following the lens etching process, confirming the beneficial broadening effect introduced by the diverging lens.
Keywords
Beam quality, Gaussian beam, catastrophic optical mirror damage (COMD), diverging lens, high-brightness lasers, high-power lasers, integrated lens, mode expansion, tapered lasers
Discipline
Physical Sciences and Mathematics
Research Areas
Quantitative Finance
Publication
IEEE Photonic Technology Letters
Volume
19
Issue
4
First Page
203
Last Page
205
ISSN
1041-1135
Identifier
10.1109/LPT.2006.890105
Publisher
IEEE
Citation
Lau, F. K.; TEE, Chyng Wen; Penty, R. V.; White, I. H.; Michel, N.; and Krakowski, M..
A Novel Intra-Cavity Lens Design for Compact High Efficiency Tapered Laser Diodes. (2007). IEEE Photonic Technology Letters. 19, (4), 203-205.
Available at: https://ink.library.smu.edu.sg/lkcsb_research/3339
Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-No Derivative Works 4.0 International License.
Additional URL
https://doi.org/10.1109/LPT.2006.890105