Title :
Rapid and stable measurement of aperiodic phase shift of fiber-optic interferometer
Author_Institution :
Dept. of Electr. Eng., Huazhong Univ. of Sci. & Technol., Hubei, China
Abstract :
This paper reports a new technique for measuring aperiodic phase shift induced in the fiber-optic interferometer. The readout can be determined by analyzing four harmonic components of the output of the photodetector without necessity of knowing the Bessel function value, optical source intensity and fringe contrast.
Keywords :
light interferometers; optical fibres; phase measurement; aperiodic phase shift measurement; fiber optic interferometer; harmonic component; photodetector; Electric variables measurement; Frequency; Optical feedback; Optical films; Optical interferometry; Phase measurement; Phase modulation; Phase shifting interferometry; Photodetectors; Voltage;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 1998 Conference on
Conference_Location :
Washington, DC, USA
Print_ISBN :
0-7803-5018-9
DOI :
10.1109/CPEM.1998.699950
