Post-fabrication refractive index sensitivity enhancement technique for single-fiber Mach-Zehnder interferometer
Optical Fiber Technology(2020)
摘要
•Single fiber MZI was fabricated for sensing RI over large range of measurements.•The interferometer was placed in fiber loop of MZI cascaded fiber loop mirror.•Sensitivity of SF-MZI was enhanced by inducing non-reciprocal phase shifts.•Threefold enhancement in RI sensitivity of SF-MZI was observed.
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关键词
Refractive index,Fiber loop mirror,MZI cascaded fiber loop mirror,Sensitivity enhancement,Single-fiber MZI,Non-reciprocal phase shift
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