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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 40, Iss. 21 — Jul. 20, 2001
  • pp: 3518–3524

Differential optical fiber refractometer based on a path-matching differential interferometer with temperature compensation

Yu-Lung Lo and Chin-Ho Chuang  »View Author Affiliations


Applied Optics, Vol. 40, Issue 21, pp. 3518-3524 (2001)
http://dx.doi.org/10.1364/AO.40.003518


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Abstract

We present a new approach for the development of a highly stable optical fiber refractometer based on a path-matching differential interferometer. Exploiting a single-channel phase tracker and new synthetic heterodyne demodulations, one can eliminate the thermal drift on a piezoelectric transducer stack as a phase modulator by subtraction. A transducer in a differential Fabry–Perot refractometer is designed to compensate for the thermal effects not only from thermal expansion but also from the thermo-optic effect. The experimental data show that the refractive-index change in the sensing system can be kept at a level of approximately 5 × 10-4 without serious variations for a 1-h period of long-term monitoring associated with a temperature variation of from 25 to 50 °C. Accordingly, the proposed new system can be easily implemented and used as a long-term monitoring system for medical care applications such as monitoring patients during drug injection.

© 2001 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(120.5710) Instrumentation, measurement, and metrology : Refraction

History
Original Manuscript: July 24, 2000
Revised Manuscript: February 22, 2001
Published: July 20, 2001

Citation
Yu-Lung Lo and Chin-Ho Chuang, "Differential optical fiber refractometer based on a path-matching differential interferometer with temperature compensation," Appl. Opt. 40, 3518-3524 (2001)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-40-21-3518


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References

  1. R. S. Longhurst, Geometrical and Physical Optics, 3rd ed. (Longmans, London, 1962).
  2. H. Moosmüller, W. P. Arnott, “Folded Jamin interferometer: a stable instrument for refractive-index measurements,” Opt. Lett. 21, 438–440 (1996). [CrossRef] [PubMed]
  3. I. Hinkov, V. Hinkov, “Two-layer waveguiding structure in LiNbO3 with birefringence reversal for refractive-index sensors with large measurement range,” J. Lightwave Technol. 11, 554–559 (1993). [CrossRef]
  4. B. Maisenholder, H. P. Zappe, R. E. Kunz, M. Moser, P. Riel, “Optical refractometry using a monolithically integrated Mach–Zehnder interferometer,” in Proceedings of Transducers ’97, Ninth International Conference on Solid-State Sensors and Actuators, (Institute of Electrical and Electronics Engineers, New York, 1997), pp. 79–80. [CrossRef]
  5. G. J. Veldhuis, L. E. W. Van Der Veen, P. V. Lambeck, “Integrated optical refractometer based on waveguide bend loss,” J. Lightwave Technol. 17, 857–863 (1999). [CrossRef]
  6. T. Takeo, H. Hattori, “Optical fiber sensor for measuring refractive index,” Jpn. J. Appl. Phys. 21, 1509–1512 (1982). [CrossRef]
  7. T. Takeo, H. Hattori, “Skin hydration state estimation using a fiber-optic refractometer,” Appl. Opt. 33, 4267–4272 (1994). [CrossRef] [PubMed]
  8. A. W. Domanski, M. Roszko, M. Swillo, “Compact optical fiber refractive index differential sensor for salinity measurements,” IEEE Proc. Sensing Process. Network. 2, 953–956 (1997).
  9. A. Asseh, S. Sandgren, H. Ahlfeldt, B. Sahlgren, R. Stubbe, G. Edwall, “Fiber optical Bragg grating refractometer,” Fiber Integr. Opt. 17, 51–62 (1998). [CrossRef]
  10. Y. L. Lo, H. Y. Lai, W. C. Wang, “Developing stable optical fiber refractometers using PMDI with two-parallel Fabry–Perots,” Sens. Actuators B 62, 49–54 (2000). [CrossRef]
  11. A. D. Kersey, R. P. Moeller, T. A. Berkoff, W. K. Burns, “Single-channel phase-tracker for the open-loop fiber optic gyroscope,” in Fiber Optic Gyros: 15th Anniversary Conference, S. Ezekiel, E. Udd, eds., Proc. SPIE1585, 198–202 (1992). [CrossRef]
  12. Y. L. Lo, C. H. Chuang, “New synthetic-heterodyne demodulation for an optical fiber interferometry,” IEEE J. Quantum Electron. (to be published).
  13. B. Culshaw, J. Dakin, Optical Fiber Sensors: System and Applications (Artech House, Norwood, Mass., 1989), Vol. 2.
  14. P. G. Cielo, “Fiber optic hydrophone: improved strain configuration and environmental noise protection,” Appl. Opt. 18, 2933–2937 (1979). [CrossRef] [PubMed]
  15. H. Singh, “Strain and temperature sensing using optical fiber sensors,” Ph.D. dissertation (University of Maryland, College Park, Md., 1996).
  16. A. Dandridge, A. B. Tveten, T. G. Giallorenzi, “Homodyne demodulation scheme for fiber optic sensors using phase generated carrier,” IEEE J. Quantum Electron. 18, 1647–1652 (1982). [CrossRef]
  17. C. C. Chang, J. S. Sirkis, “Design of fiber optic sensor systems for low velocity impact detection,” Smart Mater. Struct. 7, 166–177 (1998). [CrossRef]

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