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

Research output: Contribution to journalArticle

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.
Original languageEnglish
JournalIEEE Photonics Journal
DOIs
Publication statusPublished - 21 Aug 2019

Fingerprint

fibers
Fibers
Mach-Zehnder interferometers
Nonlinear optics
nonlinear optics
Fiber Bragg gratings
Transparency
Bragg gratings
signal processing
Signal processing
extinction
optics
continuums
interference

Bibliographical note

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).

Keywords

  • Fano-like resonance
  • fiber Bragg grating (FBG)
  • Mach-Zehnder interferometer (MZI)

Cite this

Jiang, B., Gan, X., Gu, L., Hao, Z., Wang, S., Bi, Z., ... Zhao, J. (2019). Fano-like resonance in an all-in-fiber structure. IEEE Photonics Journal. https://doi.org/10.1109/JPHOT.2019.2936485
Jiang, Biqiang ; Gan, Xuetao ; Gu, Linpeng ; Hao, Zhen ; Wang, Shouheng ; Bi, Zhixuan ; Zhang, Lin ; Zhou, Kaiming ; Zhao, Jianlin. / Fano-like resonance in an all-in-fiber structure. In: IEEE Photonics Journal. 2019.
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Fano-like resonance in an all-in-fiber structure. / Jiang, Biqiang; Gan, Xuetao; Gu, Linpeng; Hao, Zhen; Wang, Shouheng; Bi, Zhixuan; Zhang, Lin; Zhou, Kaiming; Zhao, Jianlin.

In: IEEE Photonics Journal, 21.08.2019.

Research output: Contribution to journalArticle

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