Integrated-optic device for a fibre laser Doppler velocimeter

11 September 1986

journal article
Published by Institution of Engineering and Technology (IET) in Electronics Letters

Vol. 22 (19) , 982-984
https://doi.org/10.1049/el:19860672

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

LINBO3:TI
FREQUENCY SHIFTER
FIBRE LASER DOPPLER VELOCIMETER
Z-PROPAGATION TI-DIFFUSED LINBO3
INTEGRATED-OPTIC DEVICE
WAVEGUIDE INTERFEROMETER
SINGLE-MODE FIBRE
HETERODYNE DETECTION

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