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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 13 — Jun. 21, 2010
  • pp: 14041–14055

Influence of strain and pressure to the effective refractive index of the fundamental mode of hollow-core photonic bandgap fibers

M. Pang, H. F. Xuan, J. Ju, and W. Jin  »View Author Affiliations


Optics Express, Vol. 18, Issue 13, pp. 14041-14055 (2010)
http://dx.doi.org/10.1364/OE.18.014041


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Abstract

We investigate the phase sensitivity of the fundamental mode of hollow-core photonic bandgap fibers to strain and acoustic pressure. A theoretical model is constructed to analyze the effect of axial strain and acoustic pressure on the effective refractive index of the fundamental mode. Simulation shows that, for the commercial HC-1550-02 fiber, the contribution of mode-index variation to the overall phase sensitivities to axial strain and acoustic pressure are respectively ~-2% and ~-17%. The calculated normalized phase-sensitivities of the HC-1550-02 fiber to strain and acoustic pressure are respectively 1 ε−1 and −331.6 dB re μPa−1 without considering mode-index variation, and 0.9797 ε−1 and −333.1 dB re μPa−1 when mode-index variation is included in the calculation. The latter matches better with the experimentally measured results.

© 2010 OSA

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(120.5050) Instrumentation, measurement, and metrology : Phase measurement
(060.5295) Fiber optics and optical communications : Photonic crystal fibers

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: March 12, 2010
Revised Manuscript: June 4, 2010
Manuscript Accepted: June 4, 2010
Published: June 15, 2010

Citation
M. Pang, H. F. Xuan, J. Ju, and W. Jin, "Influence of strain and pressure to the effective refractive index of the fundamental mode of hollow-core photonic bandgap fibers," Opt. Express 18, 14041-14055 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-13-14041


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