Fano-like resonance in an all-in-fiber structure

Abstract

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.

Publication DOI: https://doi.org/10.1109/JPHOT.2019.2936485
Divisions: Engineering & Applied Sciences > Electrical, Electronic & Power Engineering
Engineering & Applied Sciences > Aston Institute of Photonics Technology
Engineering & Applied Sciences
Additional Information: This work is licensed under a Creative Commons Attribution 4.0 License. For more information, see https://creativecommons.org/licenses/by/4.0/. Funding: National Natural Science Foundation of China (Grant Nos. 61775182, 61505165, and 61522507), the Natural Science Basic Research Plan in Shaanxi Province of China (Grant No. 2019JM-330), the Fundamental Research Funds for the Central Universities (Grant No. 3102019PB005), the Key Laboratory of Opto-electronic Information Technology, Ministry of Education (Tianjin University) (Grant No. 2019KFKT007), and the Marie Skłodowska-Curie Individual Fellowships in the European Union’s Horizon 2020 Research and Innovation Programme (Grant No. 660648).
Uncontrolled Keywords: Fano-like resonance,fiber Bragg grating (FBG),Mach-Zehnder interferometer (MZI)
Full Text Link:
Related URLs: https://ieeexpl ... ocument/8808895 (Publisher URL)
PURE Output Type: Article
Published Date: 2019-08-21
Accepted Date: 2019-08-01
Authors: Jiang, Biqiang
Gan, Xuetao
Gu, Linpeng
Hao, Zhen
Wang, Shouheng
Bi, Zhixuan
Zhang, Lin ( 0000-0002-1691-5577)
Zhou, Kaiming ( 0000-0002-6011-1912)
Zhao, Jianlin

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