Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

GaN laser self-mixing velocimeter for measuring slow flows

Not Accessible

Your library or personal account may give you access

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 405nm) compared with other semiconductor lasers (generally around 800nm 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 26μms.

© 2010 Optical Society of America

Full Article  |  PDF Article
More Like This
Self-mixing dual-frequency laser Doppler velocimeter

Chih-Hao Cheng, Lyu-Chih Lin, and Fan-Yi Lin
Opt. Express 22(3) 3600-3610 (2014)

Fiber-coupled self-mixing diode-laser Doppler velocimeter: technical aspects and flow velocity profile disturbances in water and blood flows

M. H. Koelink, F. F. M. de Mul, A. L. Weijers, J. Greve, R. Graaff, A. C. M. Dassel, and J. G. Aarnoudse
Appl. Opt. 33(24) 5628-5641 (1994)

Self-mixing flow sensor using a monolithic VCSEL array with parallel readout

Yah Leng Lim, Russell Kliese, Karl Bertling, Katsuyoshi Tanimizu, P. A. Jacobs, and Aleksandar D. Rakić
Opt. Express 18(11) 11720-11727 (2010)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (5)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (2)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved