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Linear response and enhanced sensitivity of Mach–Zehnder interferometer with optimized sensing length
Author(s) -
Yang Tianfu,
Wang Tianjiao,
Zheng Chuantao,
Wang Xibin,
Zhang Daming
Publication year - 2014
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.28421
Subject(s) - interferometry , mach–zehnder interferometer , sensitivity (control systems) , refractive index , microwave , optics , response time , quadrature (astronomy) , materials science , microfluidics , physics , electronic engineering , engineering , nanotechnology , computer science , computer graphics (images) , quantum mechanics
Through a sensing length of 1,1515 µm, the integrated Mach–Zehnder interferometer sensor obtains a quadrature point and linear response in refractive index range of 1.31–1.42. The sensitivity is measured as 225.4 dB/RIU, and the response time is less than 20 s to solutions. Cost‐efficient polymers are used as waveguide materials, and a microfluidic system is achieved. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:1697–1701, 2014