supported by the Ministry of Science and Technology of China (MOST) (No. 2015AA043504);the National Natural Science Foundation of China (NSFC) (Nos. 91323301 and 51575053)
We propose a temperature-insensitive refractive index(RI) fiber sensor based on a Mach–Zehnder interferometer. The sensor with high sensitivity and a robust structure is fabricated by splicing a short photonic crys...
supported by the National Basic Research Program of China (No.2011CB013000);the 863 Program of the Ministry of Science and Technology of China (No.2015AA043504);the Cultivation Fund of the Key Scientific and Technical Innovation Project,Ministry of Education of China (No.708018)
An optical fiber extrinsic Fabry-Perot interferometer (EFPI) is designed and fabricated for refractive index (RI) sensing. To test the RI of liquid, the following two different methods are adopted: the wavelength...
supported by the National Natural Science Foundation of China(Nos.61205068 and 61475133);the Hebei Province Science and Technology Support Program(Nos.15273304D and 14273301D);the College Youth Talent Project of Hebei Province(No.BJ2014057);the“Xin Rui Gong Cheng”Talent Project and the Excellent Youth Funds for School of Information Science and Engineering in Yanshan University(No.2014201)
In this paper,a novel refractive index(RI) sensor is proposed based on the fused tapered special multi-mode fiber(SMMF).Firstly,a section of SMMF is spliced between two single-mode fibers(SMFs).Then,the SMMF is proces...
supported by the National Natural Science Foundation of China under Grant Nos.11374079,91227113,and 11474078
In this study, a new method utilizing surface plasmon resonance (SPR) sensing technology based on the phase and angular interrogations for measuring the refractive index of a liquid prism is presented. An orthogonal...
We present a liquid refractive index (RI) sensor based on step-index multimode polymer optical fiber with a micro-hole drilled by the femtosecond laser. The experimental results show that in the RI operation range o...
supported by the National "973" Program of China (No. 2010CB327800);the Natural Science Foundation of Jiangsu Province of China (No.BK2010247);the Priority Academic Program Development of Jiangsu Higher Education Institutions
A simple and compact refractive index sensor is demonstrated by tapering a photonic crystal fiber (PCF) in-line interferometer. The PCF is spliced between two single-mode fibers and tapered via hydrofluoric acid etc...
supported by the Tianjin Natural Science Foundation(No.11JCYBJC00100);the National Natural Science Foundation of China(Nos.60808004 and 61107052)
An alternative solution for the simultaneous measurement of temperature and refractive index is presented. A local micro-structured fiber Bragg grating (LMSFBG) is formed as the sensing head, in which a standard gra...
supported by the National Natural Science Foundation of China (Nos. 10974102, 10874078,11074116, and 10934003);the National Basic Research Program of China (No. 2006CB921805);the Open Project of the State Key Laboratory of Functional Materials for Informatics
An interesting reflection phenomenon in a dual metal grating (DMG) structure is studied, which is related to the competition between Fabry-Prot (F-P) resonance effect and evanescent-field coupling effect inside th...
supported by the National Natural Science Foundation of China (Nos. 10874093 and 10804055);the National "973" Program of China (Nos. 2007CB307002, 2010CB934101, and 2010CB933801);the "111"Project of China (No. B07013);the Program for New Century Excellent Talents in University of China
Optical transmission at 532 nm from nonabsorbing disordered porous silicon dioxide has been studied experimentally. The transmission behaviors can be adjusted by filling the pores with liquids of different refractive ...
supported by the National Natural Science Foundation of China (No.60777035);the Scientific Research Key Project Fund of the Ministry of Education (No.208040);the Shanghai Leading Academic Discipline Project (No.T0501)
The gas-sensitive film coated π-phase-shifted long-period fiber grating(LPFG),consisting of two same long-period fiber gratings cascaded by a regular fiber with length of half of the grating period,is proposed for ga...