5th International Conference on Advances in Optoelectronics and Micro/Nano-optics | |
Polarization-dependent refractive index fiber-optic sensor based on the core-offset with a taper | |
Wang, Youqing^1 ; Shen, Changyu^1 ; Lou, Weimin^1 ; Shentu, Fengying^1 | |
Institute of Optoelectronic Technology, China Jiliang University, Hangzhou | |
310018, China^1 | |
关键词: Biochemical sensing; Enhancing effect; Fast axis; Fusion splicing; Low costs; Orthogonal polarization modes; Refractive index sensor; Slow-axis; | |
Others : https://iopscience.iop.org/article/10.1088/1742-6596/680/1/012023/pdf DOI : 10.1088/1742-6596/680/1/012023 |
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来源: IOP | |
【 摘 要 】
A polarization-dependent refractive index sensor based on the in-fiber Mach- Zehnder interferometer which is constructed by core-offset fusion splicing a tapered polarization maintaining fiber (PMF) with a length of 20 mm between the core-offset and the taper is proposed. Due to the introduced high environment-sensitivity of the two orthogonal polarization modes in the PMF and the enhancing effect of the tapered PMF, The sensitivity of the fast axis and the slow axis up to ∼-107.51 nm/RI and ∼-74.54 nm/RI in the RI range between 1.333 and 1.381 is obtained, respectively. Such kinds of low-cost and highly sensitive fiber-optic RI sensors would find applications in chemical or biochemical sensing fields.
【 预 览 】
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Polarization-dependent refractive index fiber-optic sensor based on the core-offset with a taper | 1046KB | download |