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Article
Temperature Compensated Refractometer Based on a Cascaded SMS/LPFG Fiber Structure
Sensors and Actuators B: Chemical
  • Jie Huang, Missouri University of Science and Technology
  • Xinwei Lan
  • Amardeep Kaur, Missouri University of Science and Technology
  • Haining Wang
  • Lei Yuan
  • Hai Xiao, Missouri University of Science and Technology
Abstract

A hybrid optical fiber structure for refractive index (RI) measurement with the temperature compensation capability is reported. The structure consists of a CO2 laser-induced long period fiber grating (LPFG) and a section of single mode-multimode-single mode (SMS) fiber structure. The LPFG serves as a refractometer with a temperature compensator using a simple SMS fiber structure. The sensing mechanism of this device has been investigated and experimentally demonstrated. The SMS structure was insensitive towards the change in the ambient RI but was sensitive towards the changes in the ambient temperature whereas the LPFG was sensitive towards both. A sensitivity matrix was built to compensate the temperature-RI crosstalk. The capability of simultaneous measurement of temperature and RI of the sensor was experimentally validated.

Department(s)
Electrical and Computer Engineering
Sponsor(s)
National Energy Technology Laboratory (U.S.)
Comments
This research work was supported by Department of Energy (DOE)-National Energy Technology Laboratory (NETL) under the contract DE-FE0001127.
Keywords and Phrases
  • Carbon dioxide,
  • Fiber optic sensors,
  • Fibers,
  • Refractive index,
  • Refractometers, Long period fiber grating,
  • Mode structure,
  • Optical fiber structures,
  • Refractive index measurement,
  • Simultaneous measurement,
  • Temperature compensated,
  • Temperature compensation,
  • Temperature compensators, Multimode fibers,
  • Single mode-multimode-single mode structure,
  • Temperature compensated refractometer
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2014 Elsevier, All rights reserved.
Publication Date
7-1-2014
Publication Date
01 Jul 2014
Citation Information
Jie Huang, Xinwei Lan, Amardeep Kaur, Haining Wang, et al.. "Temperature Compensated Refractometer Based on a Cascaded SMS/LPFG Fiber Structure" Sensors and Actuators B: Chemical Vol. 198 (2014) p. 384 - 387 ISSN: 0925-4005
Available at: http://works.bepress.com/jie-huang/82/