GaN laser self-mixing velocimeter for measuring slow flows

Kliese, Russell, Lim, Yah Leng, Bosch, Thierry and Rakić, Aleksandar D. (2010) GaN laser self-mixing velocimeter for measuring slow flows. Optics Letters, 35 6: 814-816. doi:10.1364/OL.35.000814

Author Kliese, Russell
Lim, Yah Leng
Bosch, Thierry
Rakić, Aleksandar D.
Title GaN laser self-mixing velocimeter for measuring slow flows
Journal name Optics Letters   Check publisher's open access policy
ISSN 0146-9592
Publication date 2010-03
Sub-type Article (original research)
DOI 10.1364/OL.35.000814
Volume 35
Issue 6
Start page 814
End page 816
Total pages 3
Place of publication Washington, DC, United States
Publisher Optical Society of America
Collection year 2011
Language eng
Abstract The self-mixing (SM) laser sensing technique allows for a simple, self-aligned, and robust system for measuring velocity. Low-cost blue emitting GaN laser diodes have recently become available owing to the high volume requirements for Blu-ray Disc devices such as high-definition video players and gaming consoles. These GaN lasers have a significantly shorter wavelength (around 405 nm) compared with other semiconductor lasers (generally around 800 nm for SM sensors). Therefore, if used in SM flow sensors, they allow measuring of flow rates that would otherwise be too slow to measure. In this Letter we report what we believe to be the world's first SM flow measurement system based on a blue emitting semiconductor laser, demonstrating the ability to measure flow rates down to 26 μm/s. © 2010 Optical Society of America.
Keyword Blu-ray disc
Gaming consoles
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2011 Collection
School of Information Technology and Electrical Engineering Publications
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Citation counts: TR Web of Science Citation Count  Cited 19 times in Thomson Reuters Web of Science Article | Citations
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Created: Sun, 04 Apr 2010, 00:02:12 EST