A novel special optical waveguide structure with magneto-optic nonreciprocal phase shift under transversely applied magnetic field

Dengwei Zhang*, Liang Cui, Heming Wei, Abhishek K. Kottaram Amrithanath, Sridhar Krishnaswamy, Xiaowu Shu

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A novel special waveguide sensor, which is very sensitive to magnetic field, is proposed. This novel special wave guide is combined by two kinds material, YIG polymer and Bi:YIG polymer. The two beam lights counter-propagating in this kind of waveguide can generate large nonreciprocal phase shift. We designed the sensor structure, simulated the propagated characteristic of the structure. Based on the simulations, we concluded that waveguide with the core divided by two half circles can improve the sensitive to the magnetic field which is parallel to the interface of the two semicircles. We design a Sagnac interference demonstration with the light wavelength of 1550 nm, two difference-resonant loops. This sensor with 0.51pTesla-level sensitivity can be used in ultra-low magnetic field detection.

Original languageEnglish (US)
Title of host publicationSensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2019
EditorsJerome P. Lynch, Hoon Sohn, Kon-Well Wang, Haiying Huang
PublisherSPIE
ISBN (Electronic)9781510625952
DOIs
StatePublished - Jan 1 2019
EventSensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2019 - Denver, United States
Duration: Mar 4 2019Mar 7 2019

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10970
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceSensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2019
CountryUnited States
CityDenver
Period3/4/193/7/19

Keywords

  • Difference-resonant loop
  • Nonreciprocal phase shift
  • Sagnac structure
  • Special optical fiber
  • Ultra-low magnetic field detection

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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  • Cite this

    Zhang, D., Cui, L., Wei, H., Kottaram Amrithanath, A. K., Krishnaswamy, S., & Shu, X. (2019). A novel special optical waveguide structure with magneto-optic nonreciprocal phase shift under transversely applied magnetic field. In J. P. Lynch, H. Sohn, K-W. Wang, & H. Huang (Eds.), Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2019 [1097030] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 10970). SPIE. https://doi.org/10.1117/12.2522615