PRINCIPLES OF STRUCTURAL SLOW LIGHT AND ITS APPLICATIONS FOR OPTICAL FIBER SENSORS: A REVIEW |
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| Authors: | Yong Zhao Chuan Qin Qi Wang |
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| Affiliation: | 1. College of Information Science and Engineering, Northeastern University , Shenyang , China;2. State Key Laboratory of Synthetical Automation for Process Industries, Northeastern University , Shenyang , China;3. College of Information Science and Engineering, Northeastern University , Shenyang , China |
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| Abstract: | Generation methods of structural slow light and the recent optical fiber sensing applications are summarized in this paper. Five kinds of different structures for slow light are discussed: in fiber Bragg grating, fiber Fabry-Perot cavity, circled coupled resonator optical waveguides, photonic crystal waveguides, and microspheres. The corresponding applications for optical fiber sensors of the different slow light technologies are also introduced. Developments of structural slow light and the characteristics of the slow light sensing methods are analyzed, and improvement trends and potential applications in the fiber-sensing field are forecasted. It is concluded that the technology of structural slow light will increase in fiber sensing and other fields. |
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| Keywords: | circled coupled resonator optical waveguides Fabry-Perot cavity fiber Bragg grating microsphere photonic crystal waveguides structural slow light |
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