Title :
Self-mixing laser speckle velocimeter for blood flow measurement
Author :
S.K. Ozdemir;S. Takamiya;S. Ito;S. Shinohara;H. Yoshida
Author_Institution :
Shizuoka Univ., Hamamatsu, Japan
Abstract :
A velocimeter using speckle phenomena in self-mixing laser diodes (SM-LDs) is used to evaluate the blood flow noninvasively. The mean frequency of the speckle signal obtained from the self-mixing laser diode reflects the activity of the blood flow in a certain probing area. The experimental results show that this new type of speckle velocimeter can be useful for the relative evaluation of blood flow in human tissues.
Keywords :
"Speckle","Blood flow","Fluid flow measurement","Optical scattering","Optical feedback","Light scattering","Diode lasers","Adaptive optics","Optical sensors","Laser feedback"
Journal_Title :
IEEE Transactions on Instrumentation and Measurement
