期刊
IEEE PHOTONICS TECHNOLOGY LETTERS
卷 24, 期 20, 页码 1872-1874出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LPT.2012.2217738
关键词
Microfiber; nonadiabatic taper; optical fiber; refractive index sensor
资金
- Ministry of Education via Nanyang Technological University, Singapore
We demonstrate a nonadiabatic microfiber sensor with a taper diameter of few micrometers. The modal interference caused by the abrupt taper results in a sinusoidal spectral response. The wavelength shift arising because of the changes in the external refractive index is found to be significant, achieving a maximum sensitivity of 18681.82 nm/RIU. The measured results show good agreement with the theoretical predictions. The high sensitivity and the simplicity offer the sensor the potential for many real applications.
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