Jpn. J. Appl. Phys. 48 (2009) 102403 (5 pages)  |Previous Article| |Next Article|  |Table of Contents|
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High-Sensitivity Fiber-Optic Temperature Sensing System Based on Optical Pulse Correlation and Time-Division Multiplexer Technique

Xunjian Xu and Koji Nonaka

(Received March 31, 2009; accepted July 6, 2009; published online October 20, 2009)

A novel high-sensitivity fiber-optic temperature sensing system based on the optical pulse correlation principle is proposed. The optical pulse correlation state corresponding to the time drift in fiber-optic transmission lines is detected by a second harmonic generation (SHG) crystal. This sensing system is combined with 3- and 100-m-long monitoring fibers using a time-division multiplexer (TDM) combination technique. By using the linear trend-line method to combine the correlation values of short and long monitoring fibers, a high-temperature sensitivity of 0.001 °C/mV and an approximatly 20 °C dynamic measurable range are successfully achieved.

URL: http://jjap.jsap.jp/link?JJAP/48/102403/
DOI: 10.1143/JJAP.48.102403

References | Citing Articles (3)

1. J. Kim, J. Kim, Y. Shin, and Y. Yoon: Korean J. Chem. Eng. 18 (2001) 61.
2. C. M. Jha, G. Bahl, R. Melamud, S. A. Chandorkar, M. A. Hopcroft, B. Kim, M. Agarwal, J. Salvia, H. Mehta, and T. W. Kenny: Appl. Phys. Lett. 91 (2007) 074101[AIP Scitation].
3. J. He, Z. Y. Zhao, J. Lin, and J. M. Dai: Sens. Rev. 23 (2003) 134.
4. L. Spassov, E. Yossiffov, V. Georgiev, and L. Vergov: Sens. Actuators A 58 (1997) 185.
5. S. L. Tsao, J. S. Wu, and B. C. Yeh: IEEE J. Quantum Electron. 35 (1999) 1590[CrossRef].
6. E. Ishikawa and K. Mizutani: Jpn. J. Appl. Phys. 42 (2003) 5372[JSAP].
7. L. B. Yuan and J. Yang: Sens. Actuators A 105 (2003) 40.
8. T. Fukui, M. Kodera, K. Kumagai, T. Shimada, T. Masuda, R. Tanaka, and A. Yamashita: Proc. Int. Conf. Accelerator and Large Experimental Physics, 1999, p. 90.
9. B. S. Lee, D. H. Cho, G. R. Tack, S. C. Chung, J. H. Yi, J. H. Jun, S. H. Son, and S. Y. Cho: Jpn. J. Appl. Phys. 45 (2006) 4234[JSAP].
10. S. W. Kim: Jpn. J. Appl. Phys. 41 (2002) 1431[JSAP].
11. Y. J. Rao: Meas. Sci. Technol. 8 (1997) 355.
12. M. C. Wang, Z. Y. Hsien, Y. T. Tseng, F. G. Tseng, H. S. Huang, J. E. Wang, and H. F. Taylor: Jpn. J. Appl. Phys. 47 (2008) 3236[JSAP].
13. K. Kudo and K. Mizutani: Jpn. J. Appl. Phys. 43 (2004) 3095[JSAP].
14. K. Uchiyama, K. Nonaka, and H. Takara: IEEE Photonics Technol. Lett. 16 (2004) 626[CrossRef].
15. H. B. Song, T. Suzuki, M. Sako, and K. Nonaka: Meas. Sci. Technol. 17 (2006) 631.
16. H. B. Song, T. Suzuki, T. Fujimura, K. Nonaka, T. Shioda, and T. Kurokawa: Meas. Sci. Technol. 18 (2007) 3230.