Title :
An improved mode shape measurement system with two lasers of different wavelengths
Author :
Watanabe, Yasuaki ; Imaeda, Noriyuki ; Tachibana, Kentaro ; Goka, Shigeyoshi ; Sato, Takayuki ; Sekimoto, Hitoshi
Author_Institution :
Grad. Sch. of Sci. & Eng., Tokyo Metropolitan Univ., Hachioji
Abstract :
Mode shape measurement is pivotal to the success of any piezoelectric and non-piezoelectric resonator design. This paper describes an improved laser-speckle mode shape visualization system for measuring speckle images simultaneously generated on device surfaces using a red and a violet semiconductor lasers.
Keywords :
measurement by laser beam; optical resonators; semiconductor lasers; shape measurement; speckle; laser-speckle mode shape visualization system; mode shape measurement system; nonpiezoelectric resonator design; piezoelectric resonator design; red semiconductor lasers; speckle images; violet semiconductor lasers; Displacement measurement; Interference; Laser modes; Optical interferometry; Optical resonators; Optical surface waves; Shape measurement; Speckle; Surface emitting lasers; Vibration measurement;
Conference_Titel :
Frequency Control Symposium, 2008 IEEE International
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-1794-0
Electronic_ISBN :
1075-6787
DOI :
10.1109/FREQ.2008.4622994
