Novel in-line fiber-optic etalon formed by hollow-core photonic crystal fiber

Y. J. Rao; T. Zhu; X. C. Yang; D. W. Duan

doi:10.1117/12.785796

16 May 2008 Novel in-line fiber-optic etalon formed by hollow-core photonic crystal fiber

Y. J. Rao, T. Zhu, X. C. Yang, D. W. Duan

Proceedings Volume 7004, 19th International Conference on Optical Fibre Sensors; 700460 (2008) https://doi.org/10.1117/12.785796
Event: 19th International Conference on Optical Fibre Sensors, 2008, Perth, WA, Australia

Abstract

A novel fiber-optic in-line etalon is proposed and demonstrated, formed by splicing a section of hollow-core photonic crystal fiber (HCPCF) in between two single-mode fibers, for the first time to our knowledge. Such a HCPCF-based etalon acts as an excellent optical waveguide to form a Fabry-Perot interferometer and hence allows the cavity length to be as long as several centimeters with good visibility as the transmission loss of the HCPCF is much smaller than that of a hollow core fiber, this offers great potential to generate a practical dense fiber-optic sensor network with spatial-frequency division-multiplexing. This novel etalon is demonstrated for strain measurement and the experimental results show that a good visibility of 0.3 and a strain accuracy of better than ±5με are achieved.

Citation Download Citation

Y. J. Rao, T. Zhu, X. C. Yang, and D. W. Duan "Novel in-line fiber-optic etalon formed by hollow-core photonic crystal fiber", Proc. SPIE 7004, 19th International Conference on Optical Fibre Sensors, 700460 (16 May 2008); https://doi.org/10.1117/12.785796

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