Title :
Dual-frequency laser Doppler velocimeter for speckle noise reduction
Author :
Cheng, Chih-Hao ; Lee, Jia-Wei ; Lin, Tzu-Wei ; Lin, Fan-Yi
Author_Institution :
Dept. of Electr. Eng., Nat. Tsing Hua Univ., Hsinchu, Taiwan
Abstract :
We develop a dual-frequency laser Doppler velocimeter based on an optically-injected semiconductor laser. Spectral broadening suffered from the speckle noise is much suppressed benefitted by the longer effective wavelength.
Keywords :
Doppler measurement; laser velocimeters; optical noise; semiconductor lasers; speckle; dual-frequency laser Doppler velocimeter; optically-injected semiconductor laser; speckle noise reduction; spectral broadening; Adaptive optics; Doppler effect; Masers; Optical attenuators; Optical mixing; Surface emitting lasers;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2012 Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-4673-1839-6
