OSA's Digital Library

Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 53, Iss. 12 — Apr. 20, 2014
  • pp: 2696–2701

Semi-open cavity in-fiber Mach–Zehnder interferometer for temperature measurement with ultra-high sensitivity

Ai Zhou, Yaxun Zhang, Quan Xu, Jun Yang, and Libo Yuan  »View Author Affiliations

Applied Optics, Vol. 53, Issue 12, pp. 2696-2701 (2014)

View Full Text Article

Enhanced HTML    Acrobat PDF (849 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



We demonstrate a semi-open cavity in-fiber Mach–Zehnder interferometer based on optical fiber tube (OFT) for temperature measurement with high sensitivity. The interferometer is composed of an OFT sandwiched between two multimode fibers, with lateral offset. The air hole of the OFT was not completely sealed and liquid is poured into the air hole through the unsealed gap. Light from the multimode fiber is split into two beams: one beam transmits directly through the silica tube while the other travels along the liquid-filled cavity. The device has ultra-high temperature sensitivity due to the much larger thermo-optic coefficient of the liquid compared with that of silica. Experimental results show that the temperature sensitivity is 6.35 nm/°C for an ethanol-filled structure.

© 2014 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(120.6780) Instrumentation, measurement, and metrology : Temperature

ToC Category:
Instrumentation, Measurement, and Metrology

Original Manuscript: February 26, 2014
Revised Manuscript: March 18, 2014
Manuscript Accepted: March 20, 2014
Published: April 18, 2014

Ai Zhou, Yaxun Zhang, Quan Xu, Jun Yang, and Libo Yuan, "Semi-open cavity in-fiber Mach–Zehnder interferometer for temperature measurement with ultra-high sensitivity," Appl. Opt. 53, 2696-2701 (2014)

Sort:  Author  |  Year  |  Journal  |  Reset  


  1. A. D. Kersey, M. A. Davis, H. J. Patrick, M. LeBlanc, K. P. Koo, C. G. Askins, M. A. Putnam, and E. J. Friebele, “Fiber grating sensors,” J. Lightwave Technol. 15, 1442–1463 (1997). [CrossRef]
  2. Y. Yu, H. Tam, W. Chung, and M. S. Demokan, “Fiber Bragg grating sensor for simultaneous measurement of displacement and temperature,” Opt. Lett. 25, 1141–1143 (2000). [CrossRef]
  3. B. H. Lee and J. Nishii, “Self-interference of long-period fibre grating and its application as temperature sensor,” Electron. Lett. 34, 2059–2060 (1998). [CrossRef]
  4. S. Khaliq, S. W. James, and R. P. Tatam, “Enhanced sensitivity fibre optic long period grating temperature sensor,” Meas. Sci. Technol. 13, 792–795 (2002). [CrossRef]
  5. L. V. Nguyen, D. Hwang, S. Moon, D. S. Moon, and Y. Chung, “High temperature fiber sensor with high sensitivity based on core diameter mismatch,” Opt. Express 16, 11369–11375 (2008). [CrossRef]
  6. P. Lu, L. Men, K. Sooley, and Q. Chen, “Tapered fiber Mach–Zehnder interferometer for simultaneous measurement of refractive index and temperature,” Appl. Phys. Lett. 94, 131100 (2009).
  7. L. Jiang, J. Yang, S. Wang, B. Li, and M. Wang, “Fiber Mach–Zehnder interferometer based on microcavities for high-temperature sensing with high sensitivity,” Opt. Lett. 36, 3753–3755 (2011). [CrossRef]
  8. R. Kashyap, Fiber Bragg Gratings (Academic, 1999), Chap. 3.
  9. S. Qiu, Y. Chen, F. Xu, and Y. Lu, “Temperature sensor based on an isopropanol-sealed photonic crystal fiber in-line interferometer with enhanced refractive index sensitivity,” Opt. Lett. 37, 863–865 (2012). [CrossRef]
  10. W. Qian, C. Zhao, S. He, X. Dong, S. Zhang, Z. Zhang, S. Jin, J. Guo, and H. Wei, “High-sensitivity temperature sensor based on an alcohol-filled photonic crystal fiber loop mirror,” Opt. Lett. 36, 1548–1560 (2011). [CrossRef]
  11. Y. Xue, Y. Yu, R. Yang, C. Wang, C. Chen, J. Guo, X. Zhang, C. Zhu, and H. Sun, “Ultrasensitive temperature sensor based on an isopropanol-sealed optical microfiber taper,” Opt. Lett. 38, 1209–1211 (2013). [CrossRef]
  12. L. Sun, J. Li, Y. Tan, X. Shen, X. Xie, S. Gao, and B. Guan, “Miniature highly birefringent microfiber loop with extremely high refractive index sensitivity,” Opt. Express 20, 10180–10185 (2012). [CrossRef]
  13. Y. Wang, M. Yang, D. N. Wang, S. Liu, and P. Lu, “Fiber in-line Mach–Zehnder interferometer fabricated by femtosecond laser micromachining for refractive index measurement with high sensitivity,” J. Opt. Soc. Am. B 27, 370–374 (2010). [CrossRef]
  14. D. Duan, Y. Raoa, L. Xua, T. Zhua, D. Wua, and J. Yao, “In-fiber Mach–Zehnder interferometer formed by large lateral offset fusion splicing for gases refractive index measurement with high sensitivity,” Sens. Actuators B 160, 1198–1202 (2011). [CrossRef]
  15. H. Gong, C. C. Chan, Y. Zhang, W. Wong, and X. Dong, “Temperature sensor based on modal interference in hollow-core photonic bandgap fiber with collapse splicing,” IEEE Sens. J. 12, 1421–1424 (2012). [CrossRef]
  16. A. Michie, J. Canning, K. Lyytikäinen, M. Åslund, and J. Digweed, “Temperature-independent highly birefringent photonic crystal fiber,” Opt. Express 12, 5160–5165 (2004). [CrossRef]
  17. R. C. Kamikawachi, I. Abe, A. S. Paterno, H. J. Kalinowski, M. Muller, J. L. Pinto, and J. L. Fabris, “Determination of thermo-optic coefficient in liquids with fiber Bragg grating refractometer,” Opt. Commun. 281, 621–625 (2008). [CrossRef]

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited