Integrated polarization-free Bragg filters with subwavelength gratings for photonic sensing

dc.creatorPimbi, Daniel
dc.creatorMia, Md Borhan
dc.creatorJaidye, Nafiz (TTU)
dc.creatorAhmed, Ishtiaque (TTU)
dc.creatorHasan, Mehedi
dc.creatorAhmed, Syed Z.
dc.creatorKim, Sangsik (TTU)
dc.date.accessioned2024-02-21T21:21:57Z
dc.date.available2024-02-21T21:21:57Z
dc.date.issued2024
dc.description© 2024 Optica Publishing Group. cc-by
dc.description.abstractWe present polarization-free Bragg filters having subwavelength gratings (SWGs) in the lateral cladding region. This Bragg design expands modal fields toward upper cladding, resulting in enhanced light interaction with sensing analytes. Two device configurations are proposed and examined, one with index-matched coupling between transverse electric (TE) and transverse magnetic (TM) modes and the other one with hybrid-mode (HM) coupling. Both configurations introduce a strong coupling between two orthogonal modes (either TE-TM or HM1-HM2) and rotate the polarization of the input wave through Bragg reflection. The arrangements of SWGs help to achieve two configurations with different orthogonal modes, while expanding modal profiles toward the upper cladding region. Our proposed SWG-assisted Bragg gratings with polarization independency eliminate the need for a polarization controller and effectively tailor the modal properties, enhancing the potential of integrated photonic sensing applications.
dc.identifier.citationPimbi, D., Mia, M.B., Jaidye, N., Ahmed, I., Hasan, M., Ahmed, S.Z., & Kim, S.. 2024. Integrated polarization-free Bragg filters with subwavelength gratings for photonic sensing. Optics Express, 31(2). https://doi.org/10.1364/OE.504043
dc.identifier.urihttps://doi.org/10.1364/OE.504043
dc.identifier.urihttps://hdl.handle.net/2346/97597
dc.language.isoeng
dc.titleIntegrated polarization-free Bragg filters with subwavelength gratings for photonic sensing
dc.typeArticle

Files

Original bundle

Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
pimbi_article.pdf
Size:
6.71 MB
Format:
Adobe Portable Document Format
Description:
Main article with TTU Libraries cover page

Collections