Influence of ambient temperature on the performance of VCSEL based self-mixing sensors: Flow measurements

Matharu, Ranveer S., Perchoux, Julien and Rakic, Aleksandar D. (2011). Influence of ambient temperature on the performance of VCSEL based self-mixing sensors: Flow measurements. In: Thomas Kenny, 10th IEEE SENSORS proceedings. 10th IEEE Conference on Sensors, Limerick, Ireland, (1100-1103). 28 - 31 October 2011. doi:10.1109/ICSENS.2011.6126951

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Author Matharu, Ranveer S.
Perchoux, Julien
Rakic, Aleksandar D.
Title of paper Influence of ambient temperature on the performance of VCSEL based self-mixing sensors: Flow measurements
Conference name 10th IEEE Conference on Sensors
Conference location Limerick, Ireland
Conference dates 28 - 31 October 2011
Proceedings title 10th IEEE SENSORS proceedings
Journal name 2011 Ieee Sensors
Place of Publication Piscataway, NJ, United States
Publisher IEEE
Publication Year 2011
Sub-type Fully published paper
DOI 10.1109/ICSENS.2011.6126951
Open Access Status
ISBN 9781424492909
Editor Thomas Kenny
Start page 1100
End page 1103
Total pages 4
Collection year 2012
Language eng
Abstract/Summary Contactless sensing that makes use of the self-mixing technique offers a compact, low cost solution that can be used for a range of measurement tasks. In this paper we demonstrate a method for maintaining the maximum signal-to-noise ratio (SNR) of the signal obtained from the self-mixing flow sensor based on a Vertical-Cavity Surface-Emitting Laser (VCSEL). It was found that the locus of maximum SNR in the current-temperature space can be well approximated by a simple analytical model related to the temperature behaviour of the VCSEL threshold current. The optimum sensor performance is achieved by tuning the laser current according to the proposed model thus enabling the sensor to operate without temperature stabilisation over a wide temperature range.
Q-Index Code E1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Article # 6126951

 
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Created: Fri, 16 Mar 2012, 16:34:25 EST by Mr Ranveer Matharu on behalf of School of Information Technol and Elec Engineering