The sensitivity of the third order mode to an index change is increased by a factor 6 as compared to the fundamental mode for a fiber etched to a core diameter of 5 µm.
© 2006 Optical Society of America
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(170.0170) Medical optics and biotechnology : Medical optics and biotechnology
(170.1420) Medical optics and biotechnology : Biology
A. N. Chryssis, S. Saini, S. M. Lee, and M. Dagenais, "Enhanced Sensitivity to Index Changes of the Surrounding Medium for High Order Modes of Etched-Core Fiber Bragg Grating Sensors," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies, Technical Digest (CD) (Optical Society of America, 2006), paper CThL1.
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