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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Vol. 9, Iss. 4 — Apr. 10, 2011
  • pp: 040603–

Rerouting end-face-TIR capable rays to significantly increase evanescent wave signal power

Jianjun Ma, Yasser Chiniforooshan, Huacai Chen, Jiahua Chen, Wojtek J. Bock, and Andrea Cusano  »View Author Affiliations


Chinese Optics Letters, Vol. 9, Issue 4, pp. 040603- (2011)


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Abstract

The critical findings associated with end-face total internal reflection (TIR) phenomemon we proved before are reported. In particular, these findings reveal that the end-face-TIR capable rays experience enormous mode mixing when encountering a roughened end face. As a result, 94% of the overall detectable power is contributed by this effect. With a smooth fiber end face, this figure is mere 52%. We interpret the mechanism behind these unusual phenomena and its significance for the performance enhancement of fiber optic evanescent wave sensor.

© 2011 Chinese Optics Letters

OCIS Codes
(060.2270) Fiber optics and optical communications : Fiber characterization
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(300.6280) Spectroscopy : Spectroscopy, fluorescence and luminescence

Citation
Jianjun Ma, Yasser Chiniforooshan, Huacai Chen, Jiahua Chen, Wojtek J. Bock, and Andrea Cusano, "Rerouting end-face-TIR capable rays to significantly increase evanescent wave signal power," Chin. Opt. Lett. 9, 040603- (2011)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-9-4-040603

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