Compact Sensors Based on Cascaded Single-Mode--Multimode--Single-Mode Fiber Structures

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概要

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• Concatenated single-mode--multimode--single-mode (SMS) structures are demonstrated as functional sensing platforms. The devices are fabricated by periodically inserting micrometric sections of multimode optical fiber (MMF) in a single-mode fiber (SMF). The periodic change of the core diameter produces a single strong resonant transmission notch, tunable in the wavelength range from 1200 to 1600 nm. It was found that the position of the notch changed with temperature and refractive index. The devices introduced here are highly compact (length less than 5 mm), simple to fabricate and robust; hence, they are adequate for diverse sensing applications.

• 2013-03-25

著者

• MARTINEZ-RIOS Alejandro

  Centro de Investigaciones en Optica

• Monzon-hernandez David

  Centro De Investigaciones En Optica

• Villatoro Joel

  Aston Institute of Photonic Technologies, Aston University, Birmingham, B4 7ET, U.K.

• Salceda-Delgado Guillermo

  Centro de Investigaciones en Óptica A. C. Loma del Bosque 115, León GTO. 37150, México

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