Browse > Article
http://dx.doi.org/10.3807/KJOP.2010.21.5.190

Simultaneous Measurement of External Refractive Index and Temperature by Using a Side-polished Fiber Bragg Grating with a Polymer Overlay  

Kim, Hyun-Joo (Department of Physics, Hanyang University)
Jun, Na-Ram (Department of Physics, Hanyang University)
Lee, Sang-Bae (Korea Institute of Science and Technology)
Han, Young-Geun (Department of Physics, Hanyang University)
Publication Information
Korean Journal of Optics and Photonics / v.21, no.5, 2010 , pp. 190-194 More about this Journal
Abstract
A hybrid grating sensing device based on a side-polished fiber Bragg grating (FBG) with a polymer overlay is proposed for simultaneous measurement of external refractive index and temperature. The side-polished FBG, which is insensitive to ambient index change, is utilized for detecting temperature variation, and the polymer overlay is coated on the side-polished FBG for measurement of ambient index change. The temperature sensitivities of the side-polished FBG and the polymer overlay were measured to be 0.01 nm/$^{\circ}C$ and -0.58 nm/$^{\circ}C$, respectively, in a temperature range from $30^{\circ}C$ to $100^{\circ}C$. The ambient index sensitivities of the polymer overlay were measured to be 498.8 nm/RIU in an ambient index range from 1.33 to 1.39, 694.9 nm/RIU from 1.39 to 1.42, and 1312 nm/RIU from 1.42 to 1.44.
Keywords
Simultaneous measurement; Side-polished fiber Bragg grating; Polymer overlay; Chemical sensor; Temperature sensor;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 D. A. Pereira, O. Frazão, and J. L. Santos, “Fiber Bragg grating sensing system for simultaneous measurement of salinity and temperature,” Opt. Eng. 43, 299-304 (2004).   DOI
2 X. Chen, K. Zhou, L. Zhang, and I. Bennion, “Simultaneous measurement of temperature and external refractive index by use of a hybrid grating in D fiber with enhanced sensitivity by HF etching,” Appl. Opt. 44, 178-182 (2005).   DOI
3 H. J. Patrick, A. D. Kersey, and F. Bucholtz, “Analysis of the response of long period fiber gratings to external index of refraction,” IEEE J. Lightwave Technol. 16, 1606-1612 (1998).   DOI
4 H. J. Kim, O. J. Kwon, and Y. G. Han, “Effect of an ambient index change on transmission characteristics of versatile D-shaped fibers depending on coupling strength of the evanescent field,” J. Korean Phys. Soc. 55, 1286-1289 (2009).   DOI
5 V. Bhatia and A. M. Vengsarkar, “Optical fiber long-period grating sensors,” Opt. Lett. 21, 692-694 (1996).   DOI
6 Y. G. Han, X. Dong, J. H. Lee, and S. B. Lee, “Simultaneous measurement of bending and temperature based on a single sampled chirped fiber Bragg grating embedded on a flexible cantilever beam,” Opt. Lett. 31, 2839-2841 (2006).   DOI
7 J. N. Jang, S. Y. Kim, S. W. Kim, and M. S. Kim, “Temperature insensitive long-period fiber gratings,” Electron. Lett. 35, 2134-2136 (1999).   DOI
8 M. N. Ng, Z. H. Chen, and K. S. Chiang, “Temperature compensation of long-period fiber grating for refractive-index sensing with bending effect,” IEEE Photon. Technol. Lett. 14, 361-362 (2002).   DOI
9 H. J. Patrick, G. M. Williams, A. D. Kersey, J. R. Pedrazzani, and A. M. Vengsarkar, “Hybrid fiber Bragg grating/long period fiber grating sensor for strain/temperature discrimination,” IEEE Photon. Technol. Lett. 8, 1223-1225 (1996).   DOI
10 M. Yang, J. Dai, X. Li, and J. Wang, “Side-polished fiber Bragg grating refractive index sensor with TbFeCo magnetoptic thin film,” J. Appl. Phys. 108, 033102-4 (2010).   DOI
11 X. W. Shu, B. A. L. Gwandu, Y. Liu, L. Zhang, and I. Bennion, “Sampled fiber Bragg grating for simultaneous refractiveindex and temperature measurement,” Opt. Lett. 26, 774-776 (2001).   DOI