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Your search keyword '"Liushun Xie"' showing total 3 results
Start Over Author "Liushun Xie" Topic single-mode optical fiber
3 results on '"Liushun Xie"'

1. Multiplexed Optical Fiber Biochemical Sensing Using Cascaded C-Shaped Fabry–Perot Interferometers

Author

Heike Ebendorff-Heidepriem, Stephen C. Warren-Smith, Liushun Xie, Linh Nguyen, Xie, Liushun, Nguyen, Linh V, Ebendorff-Heidepriem, Heike, and Warren-Smith, Stephen C

Subjects
biochemical sensing, Optical fiber, Materials science, business.industry, 010401 analytical chemistry, Layer by layer, Fabry-Perot interferometers, Single-mode optical fiber, C-shaped fiber, 01 natural sciences, Multiplexing, 0104 chemical sciences, law.invention, law, optical fiber sensing, C shaped, Astronomical interferometer, Optoelectronics, Electrical and Electronic Engineering, business, Instrumentation, Refractive index, Fabry–Pérot interferometer
Abstract

Refereed/Peer-reviewed A multiplexed fiber sensor is proposed based on Fabry-Perot interferometers formed by serially splicing C-shaped and single mode fibers. We first demonstrate multiplexed refractive index sensing by independently filling and measuring sodium chloride (NaCl) solutions with different concentrations in a two-cavity system. The results show minimal cross-talk between the two interferometers. The dual-cavity interferometric sensor was then applied to biochemical sensing by utilizing polyelectrolyte layer by layer self-assembly followed by the biotin-streptavidin binding mechanism. The proposed sensor solves an important problem in biochemical sensing by providing an ability to simultaneously measure a negative control, critical for reducing false positive measurements.

Published
2019
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2. Simultaneous temperature and refractive index sensing using C-fibre Fabry-Perot microcavity

Author

Linh Nguyen, Xuegang Li, Liushun Xie, Heike Ebendorff-Heidepriem, and Stephen C. Warren-Smith

Subjects
Materials science, Physics::Instrumentation and Detectors, business.industry, Astrophysics::Instrumentation and Methods for Astrophysics, Single-mode optical fiber, Physics::Optics, 02 engineering and technology, 021001 nanoscience & nanotechnology, 01 natural sciences, 010309 optics, Interferometry, Mathematics::Algebraic Geometry, Fiber optic sensor, C fibres, 0103 physical sciences, Optoelectronics, Fiber fabrication, 0210 nano-technology, business, Refractive index, Fabry–Pérot interferometer
Abstract

A simultaneous temperature and refractive index fibre sensor based on a Fabry– Perot interferometer is demonstrated using a C-fibre and single mode fibres.

Published
2020
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3. Temperature-compensated refractive index measurement using a dual Fabry-Perot interferometer based on C-fiber cavity

Author

Stephen C. Warren-Smith, Xuegang Li, Linh Nguyen, Heike Ebendorff-Heidepriem, Liushun Xie, Li, Xuegang, Warren-Smith, Stephen C, Xie, Liushun, Ebendorff-Heidepriem, Heike, and Nguyen, Linh V

Subjects
Materials science, Optical fiber, optical sensors, Physics::Optics, Interference (wave propagation), 01 natural sciences, law.invention, Optics, interferometers, law, Astronomical interferometer, Fiber, Electrical and Electronic Engineering, Instrumentation, refractive index, business.industry, Fabry-Perot, 010401 analytical chemistry, Single-mode optical fiber, Astrophysics::Instrumentation and Methods for Astrophysics, 0104 chemical sciences, Interferometry, optical fiber testing, business, Refractive index, Fabry–Pérot interferometer
Abstract

Refereed/Peer-reviewed We demonstrate a simple-to-fabricate, temperature-compensated refractive index sensor using a dual Fabry-Perot optical fiber interferometer using C-fiber. The sensor device is formed by combining two types of in-fiber interferometers, including a C-fiber Fabry-Perot interferometer and a single mode fiber (SMF) Fabry-Perot (FP) interferometer. The C-fiber is a silica capillary with an open side, which allows external liquid to directly enter the internal hole. The C-fiber interferometer is sensitive to external refractive index (1704 nm/RIU) as well as temperature (-0.196 nm/°C) due to the thermo-optic effect and thermal expansion of the C-fiber cavity, while the SMF interferometer is only sensitive to ambient temperature (0.0118 nm/°C). Thus, temperature-compensated refractive index measurement can be achieved by examining the phase shift responses of the two FP interference peaks with transfer matrix approach, solving the problem of temperature sensitivity of RI sensors due to the relatively large thermo-optic coefficient of colloidal materials and aqueous samples.

Published
2020

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