Temperature and voltage sensings by mode‐mode interference in polarization‐maintaining optical fibers
作者:
Chia‐Nan Chang,
Pie‐Yah Chien,
Yuh‐Chin Lee,
期刊:
Journal of the Chinese Institute of Engineers
(Taylor Available online 1995)
卷期:
Volume 18,
issue 5
页码: 625-632
ISSN:0253-3839
年代: 1995
DOI:10.1080/02533839.1995.9677728
出版商: Taylor & Francis Group
关键词: optical fiber;sensor;signal drifting and optoelectronics
数据来源: Taylor
摘要:
Two optic fiber sensing systems for temperature and voltage have been developed which utilize the mode‐mode interference of the two orthogonally polarized modes, HExIIand HEyII, in two commencal polarization‐maintaining fibers (bow‐tie and elliptical core fibers). A package of controlled programs in a Macintosh computer, which can record and process all related data automatically, is established for temperature sensing. The signal drifting problem in voltage sensings has been investigated, and the elimination of signal drifting is obtained by the phase tracking with direct current technology The agreement between the sensing results for temperature and dynamic voltage and those predicted by experimental principles is satisfactory, which confirms the validity of the developed sensing systems.
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