Title :
Integrated-optic device for a fibre laser Doppler velocimeter
Author :
Toda, Hiroaki ; Haruna, M. ; Nishihara, Hideaki
Author_Institution :
Osaka University, Department of Electronics, Faculty of Engineering, Suita, Japan
Abstract :
We first demonstrate an integrated-optic device for a fibre laser Doppler velocimeter, which consists of a waveguide interferometer and a frequency shifter in z-propagation Ti-diffused LiNbO3. The device is also pigtailed with a single-mode fibre to pick up a Doppler-shifted signal. Using the fabricated device, the velocity of a moving object was successfully heterodyne-detected with a signal/noise ratio of 30dB.
Keywords :
Doppler effect; fibre optics; integrated optics; laser velocimeters; light interferometers; lithium compounds; optical waveguides; titanium; velocity measurement; LiNbO3:Ti; fibre laser Doppler velocimeter; frequency shifter; heterodyne detection; integrated-optic device; single-mode fibre; waveguide interferometer; z-propagation Ti-diffused LiNbO3;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19860672
