Fano-Like Resonance in an All-in-Fiber Structure

Biqiang Jiang; Xuetao Gan; Linpeng Gu; Zhen Hao; Shouheng Wang; Zhixuan Bi; Lin Zhang; Kaiming Zhou; Jianlin Zhao

doi:10.1109/JPHOT.2019.2936485

IEEE Photonics Journal (Jan 2019)

Fano-Like Resonance in an All-in-Fiber Structure

Biqiang Jiang,
Xuetao Gan,
Linpeng Gu,
Zhen Hao,
Shouheng Wang,
Zhixuan Bi,
Lin Zhang,
Kaiming Zhou,
Jianlin Zhao

Affiliations

Biqiang Jiang: ORCiD; MOE Key Laboratory of Material Physics and Chemistry Under Extraordinary Conditions and Shaanxi Key Laboratory of Optical Information Technology, School of Science, Northwestern Polytechnical University, Xi'an, China
Xuetao Gan: ORCiD; MOE Key Laboratory of Material Physics and Chemistry Under Extraordinary Conditions and Shaanxi Key Laboratory of Optical Information Technology, School of Science, Northwestern Polytechnical University, Xi'an, China
Linpeng Gu: MOE Key Laboratory of Material Physics and Chemistry Under Extraordinary Conditions and Shaanxi Key Laboratory of Optical Information Technology, School of Science, Northwestern Polytechnical University, Xi'an, China
Zhen Hao: MOE Key Laboratory of Material Physics and Chemistry Under Extraordinary Conditions and Shaanxi Key Laboratory of Optical Information Technology, School of Science, Northwestern Polytechnical University, Xi'an, China
Shouheng Wang: MOE Key Laboratory of Material Physics and Chemistry Under Extraordinary Conditions and Shaanxi Key Laboratory of Optical Information Technology, School of Science, Northwestern Polytechnical University, Xi'an, China
Zhixuan Bi: MOE Key Laboratory of Material Physics and Chemistry Under Extraordinary Conditions and Shaanxi Key Laboratory of Optical Information Technology, School of Science, Northwestern Polytechnical University, Xi'an, China
Lin Zhang: Aston Institute of Photonic Technologies, Aston University, Birmingham, U.K.
Kaiming Zhou: MOE Key Laboratory of Material Physics and Chemistry Under Extraordinary Conditions and Shaanxi Key Laboratory of Optical Information Technology, School of Science, Northwestern Polytechnical University, Xi'an, China
Jianlin Zhao: ORCiD; MOE Key Laboratory of Material Physics and Chemistry Under Extraordinary Conditions and Shaanxi Key Laboratory of Optical Information Technology, School of Science, Northwestern Polytechnical University, Xi'an, China

DOI: https://doi.org/10.1109/JPHOT.2019.2936485
Journal volume & issue: Vol. 11, no. 5
pp. 1 – 7

Abstract

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We achieve Fano-like resonances in an all-in-fiber structure embedded with an in-line Mach-Zehnder interferometer (MZI). A fiber Bragg grating is inserted into MZI's one arm to form a resonance, which functions as the discrete state of the Fano-like resonance to couple with the continuum propagating mode of MZI in the fiber core. A theoretical model predicts the controllable resonance lineshape by changing the phase difference between the MZI's two interference pathways. Fano-like resonances with an extinction ratio over 20 dB are experimentally observed, which are reliably tuned into Lorentzian and electromagnetically induced transparency-like resonances by versatile methods. The realization of Fano-like resonances with broad tunability in this all-in-fiber structure holds potentials in fiber-based applications of sensing, signal processing and nonlinear optics.

Published in IEEE Photonics Journal

ISSN: 1943-0655 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Engineering (General). Civil engineering (General): Applied optics. Photonics; Science: Physics: Optics. Light
Website: http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=4563994

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