Error analyses for photoelastic multimode optical fiber sensors

Author

Wang, Anbo

Author_Institution

Bradley Dept. of Electr. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA

Volume

11

Issue

12

fYear

1993

fDate

12/1/1993 12:00:00 AM

Firstpage

2157

Lastpage

2165

Abstract

A detailed and systematic error analysis for photoelastic optical fiber sensors is presented. The errors introduced by the photoelastic sensing element, the quarterwave-plate, the polarization beam splitter, the optical source and the signal processing system have been evaluated quantitatively. The best arrangement of the optical components in the sensor head is indicated for the elimination of the error induced by the quarter-wave-plate. The effect of the spectral width of the light source on the sensor output is analyzed and the limitation of the spectral width or the differential phase delay introduced by the sensing element is obtained. Some practical issues for photoelastic fiber sensors are also discussed

Keywords

error analysis; fibre optic sensors; measurement errors; photoelasticity; pressure measurement; differential phase delay; error analysis; light source; optical components; optical source; photoelastic multimode optical fiber sensors; photoelastic sensing element; polarization beam splitter; quarterwave-plate; sensor head; signal processing system; spectral width; Error analysis; Light sources; Optical beam splitting; Optical beams; Optical devices; Optical fiber polarization; Optical fiber sensors; Optical sensors; Optical signal processing; Photoelasticity;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.257984

Filename

257984