Theoretical and experimental analysis of excessively tilted fiber gratings


We have theoretically and experimentally investigated the dual-peak feature of tilted fiber gratings with excessively tilted structure (named as Ex-TFGs). We have explained the dual-peak feature by solving eigenvalue equations for TM0m and TE0m of a circular waveguide, in which the TE (transverse electric) and TM (transverse magnetic) core modes are coupled into TE and TM cladding modes, respectively. Meanwhile, in the experiment, we have verified that one of the dual peaks at the shorter wavelength is due to the TM mode coupling whereas the other one at the longer wavelength arises from TE mode coupling when a linearly polarized light launched into the Ex-TFG. We have also investigated the peak separation of TE and TM cladding mode for different surrounding medium refractive indexes (SRI), revealed that the dual peaks separation is decreasing as increasing of SRI, which agrees very well with the theoretical analysis results.

Publication DOI:
Divisions: College of Engineering & Physical Sciences > Aston Institute of Photonics Technology (AIPT)
Additional Information: ©2016 Optical Society of America
Uncontrolled Keywords: Atomic and Molecular Physics, and Optics
Publication ISSN: 1094-4087
Last Modified: 08 Jul 2024 07:24
Date Deposited: 29 Jun 2016 07:02
Full Text Link:
Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Article
Published Date: 2016-05-30
Published Online Date: 2016-05-25
Accepted Date: 2016-05-11
Submitted Date: 2016-03-31
Authors: Yan, Zhijun
Wang, Hushan
Wang, Changle
Sun, Zhongyuan
Yin, Guolu
Zhou, Kaiming (ORCID Profile 0000-0002-6011-1912)
Wang, Yishan
Zhao, Wei
Zhang, Lin (ORCID Profile 0000-0002-1691-5577)



Version: Published Version

License: ["licenses_description_other" not defined]

| Preview

Export / Share Citation


Additional statistics for this record