Numerical and Experimental Characterization of Radiation Mode of 45° Tilted Fiber Grating


In this paper, we have numerically and experimentally investigated the radiation mode of 45° tilted fiber grating (45° TFG). By introducing the axial distributions into the volume current method, we have established a three-dimensional theoretical model to analyze spatial distributions of the radiation mode of 45° TFG, and measured the radiation mode spatial distributions in experiment. Both numerical and experimental results show that the radiation mode of 45° TFG exhibits an exponential reduction along the fiber axial direction, and a quasi-Gaussian profile along the radial direction of fiber. Additionally, we have also measured the detailed polarization-dependent azimuthal intensity distributions of radiation modes of both s-and p-polarized core modes. The degree of polarization of radiation mode is around 99.886%, which is independent of the length and the polarization extinction ratio of the grating. Moreover, for the first time, we have experimentally observed a very weak p-polarized component existing in the radiation mode, which has matched well with the simulation results.

Publication DOI:
Divisions: College of Engineering & Physical Sciences > Aston Institute of Photonics Technology (AIPT)
College of Engineering & Physical Sciences
Additional Information: © 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Uncontrolled Keywords: Exponential distribution,fiber gratings,fiber optics,polarization,radiation,Atomic and Molecular Physics, and Optics
Publication ISSN: 0733-8724
Last Modified: 13 May 2024 07:25
Date Deposited: 20 Jun 2019 09:21
Full Text Link:
Related URLs: https://ieeexpl ... cument/8728142/ (Publisher URL)
http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Article
Published Date: 2019-08-01
Published Online Date: 2019-06-03
Accepted Date: 2019-06-01
Authors: Qin, Huabao
He, Qinyun
Xing, Zhikun
Guo, Xi
Yan, Zhijun
Sun, Qizhen
Zhou, Kaiming (ORCID Profile 0000-0002-6011-1912)
Wang, Hushan
Liu, Deming
Zhang, Lin (ORCID Profile 0000-0002-1691-5577)



Version: Accepted Version

| Preview

Export / Share Citation


Additional statistics for this record