Title :
All-fiber heterodyne Laser Doppler Vibrometry for acousto-optic communication
Author :
Shang, Jianhua ; Zhao, Shuguang ; He, Yan ; Chen, Weibiao
Author_Institution :
Sch. of Inf. Sci. & Technol., Donghua Univ., Shanghai, China
fDate :
Aug. 28 2011-Sept. 1 2011
Abstract :
A novel all-fiber heterodyne Laser Doppler Vibrometry (LDV) for acousto-optic communication has been developed in this paper. A line width of 1 kHz single mode continuous fiber laser, two acousto-optic frequency shifters (AOFS), two balanced photodetectors and one telescope with 30 mm aperture were used in this LDV. Using the above system setup, the 6 kHz signal can be reconstructed by detecting the vibration of a glass sticking on the piezoceramic transducer (PZT). The proposed vibration measurement technique proved to be very accurate and potential to acquire the acoustic signal by experimental results.
Keywords :
acousto-optical modulation; fibre lasers; lead compounds; measurement by laser beam; optical fibre communication; photodetectors; piezoelectric transducers; telescopes; vibration measurement; PZT; acoustic signal; acousto-optic communication; acousto-optic frequency shifter; all-fiber heterodyne laser Doppler vibrometry; balanced photodetector; piezoceramic transducer; single mode continuous fiber laser; size 30 mm; telescope; Doppler effect; Fiber lasers; Glass; Laser theory; Photodetectors; Signal processing;
Conference_Titel :
Quantum Electronics Conference & Lasers and Electro-Optics (CLEO/IQEC/PACIFIC RIM), 2011
Conference_Location :
Sydney, NSW
Print_ISBN :
978-1-4577-1939-4
DOI :
10.1109/IQEC-CLEO.2011.6193825
