Self-mixing sensing system based on uncooled vertical-cavity surface-emitting laser array: linking multichannel operation and enhanced performance

Tucker, John R., Mowla, Alireza, Herbert, Jeremy, Fuentes, Miguel A., Freakley, Craig S., Bertling, Karl, Lim, Yah Leng, Matharu, Ranveer S., Perchoux, Julien, Taimre, Thomas, Wilson, Stephen J. and Rakic, Aleksandar D. (2014) Self-mixing sensing system based on uncooled vertical-cavity surface-emitting laser array: linking multichannel operation and enhanced performance. Optics Letters, 39 2: 394-397. doi:10.1364/OL.39.000394


Author Tucker, John R.
Mowla, Alireza
Herbert, Jeremy
Fuentes, Miguel A.
Freakley, Craig S.
Bertling, Karl
Lim, Yah Leng
Matharu, Ranveer S.
Perchoux, Julien
Taimre, Thomas
Wilson, Stephen J.
Rakic, Aleksandar D.
Title Self-mixing sensing system based on uncooled vertical-cavity surface-emitting laser array: linking multichannel operation and enhanced performance
Journal name Optics Letters   Check publisher's open access policy
ISSN 0146-9592
1539-4794
Publication date 2014-01-15
Sub-type Article (original research)
DOI 10.1364/OL.39.000394
Volume 39
Issue 2
Start page 394
End page 397
Total pages 4
Place of publication Washington, DC, United States
Publisher Optical Society of America
Collection year 2015
Language eng
Abstract We compare the performance of a self-mixing (SM) sensing system based on an uncooled monolithic array of 24×1 vertical-cavity surface-emitting lasers (VCSELs) in two modes of operation: single active channel and the concurrent multichannel operation. We find that the signal-to-noise ratio of individual SM sensors in a VCSEL array is markedly improved by multichannel operation, as a consequence of the increased operational temperature of the sensors. The performance improvement can be further increased by manufacturing VCSEL arrays with smaller pitch. This has the potential to produce an imaging system with high spatial and temporal resolutions that can be operated without temperature stabilization.
Keyword Optical sensing and sensors
Laser sensors
Vertical cavity surface emitting lasers
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mathematics and Physics
Official 2015 Collection
School of Information Technology and Electrical Engineering Publications
 
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Created: Tue, 14 Jan 2014, 10:03:14 EST by Karl Bertling on behalf of School of Information Technol and Elec Engineering