Displacement and Distance Measurement using the Change in Junction Voltage Across a Laser Diode Due to the Self-Mixing Effect

Lim, Yah Leng, Bertling, Karl, Rio, Pierre, Tucker, J. R. and Rakic, A. D. (2006). Displacement and Distance Measurement using the Change in Junction Voltage Across a Laser Diode Due to the Self-Mixing Effect. In: D. Abbott, Y. S. Kivshar, H. H. Rubinsztein-Dunlop and S. Fan, Photonics: Design, Technology, and Packaging II. SPIE International Symposium on Microelectronics, MEMS, and Nanotechnology, Brisbane, Australia, (60381O-1-60381O-10). 12-15 December, 2005. doi:10.1117/12.638433

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Author Lim, Yah Leng
Bertling, Karl
Rio, Pierre
Tucker, J. R.
Rakic, A. D.
Title of paper Displacement and Distance Measurement using the Change in Junction Voltage Across a Laser Diode Due to the Self-Mixing Effect
Conference name SPIE International Symposium on Microelectronics, MEMS, and Nanotechnology
Conference location Brisbane, Australia
Conference dates 12-15 December, 2005
Proceedings title Photonics: Design, Technology, and Packaging II   Check publisher's open access policy
Journal name Photonics: Design, Technology, and Packaging II   Check publisher's open access policy
Place of Publication Washington, USA
Publisher SPIE - International Society for Optical Engineering
Publication Year 2006
Sub-type Fully published paper
DOI 10.1117/12.638433
Open Access Status File (Publisher version)
ISBN 9780819460691
0819460699
ISSN 0277-786X
1996-756X
Editor D. Abbott
Y. S. Kivshar
H. H. Rubinsztein-Dunlop
S. Fan
Volume 6038
Start page 60381O-1
End page 60381O-10
Total pages 10
Language eng
Abstract/Summary The conventional self-mixing sensing systems employ a detection scheme utilizing the photocurrent from an integrated photodiode. This work reports on an alternative way of implementing a Vertical-Cavity Surface-Emitting Laser (VCSEL) based self-mixing sensor using the laser junction voltage as the source of the self-mixing signal. We show that the same information can be obtained with only minor changes to the extraction circuitry leading to potential cost saving with reductions in component costs and complexity. The theoretical linkage between voltage and photocurrent within the self-mixing model is presented. Experiments using both photo current and voltage detection were carried out and the results obtained show good agreement with the theory. Similar error trends for both detection regimes were observed.
Keyword Self-mixing
Voltage sensing
Laser range finder
Distance measurement
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status Non-UQ
Additional Notes Article # 60381O

 
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Created: Wed, 15 Feb 2006, 10:00:00 EST by Yah Leng Lim on behalf of School of Information Technol and Elec Engineering