Structural Design and Fabrication for Low Loss Y-branched Polymer Waveguide Coupler Devices

Fukino Nakazaki, Takaaki Ishigure

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

Abstract

Along with the wide deployment of cloud computing services, the introduction of optical interconnect technology has supported the rapid growth of data throughput in datacenter over the last couple of years. So far, multimode fiber (MMF) links have been widely installed in datacenter networks, hence the limitation of bandwidth distance product of MMF links is a current issue. In the future, wavelength division multiplexing (WDM) transmission technology could be applied even to the MMF links, by which the transmission capacity could increase because multiple optical signals with different wavelengths are multiplexed in one fiber.In, this paper, Y-branched polymer optical waveguide couplers with SI and GI square cores are fabricated using the imprint method in order to apply to a multiplexing (MUX) device in the MMF WDM links. To fabricate low loss MUX devices, three different Y-branch structures are designed and actually fabricated. Then, their optical characteristics are compared. It is confirmed that the loss of GI waveguide is lower than that of SI waveguide, independent of the multiplexing structure, because the light leakage at the multiplexing region (two-cores junction) could be reduced due to the strong light confinement effect.

Original languageEnglish
Title of host publication2018 British and Irish Conference on Optics and Photonics, BICOP 2018 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538673614
DOIs
Publication statusPublished - 2019 Mar 4
Event1st IEEE British and Irish Conference on Optics and Photonics, BICOP 2018 - London, United Kingdom
Duration: 2018 Dec 122018 Dec 14

Publication series

Name2018 British and Irish Conference on Optics and Photonics, BICOP 2018 - Proceedings

Conference

Conference1st IEEE British and Irish Conference on Optics and Photonics, BICOP 2018
CountryUnited Kingdom
CityLondon
Period18/12/1218/12/14

Keywords

  • Beam propagation method
  • Imprint Method
  • Multimode fiber link
  • Optical coupler
  • Y-branched polymer optical waveguide

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics

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  • Cite this

    Nakazaki, F., & Ishigure, T. (2019). Structural Design and Fabrication for Low Loss Y-branched Polymer Waveguide Coupler Devices. In 2018 British and Irish Conference on Optics and Photonics, BICOP 2018 - Proceedings [8658333] (2018 British and Irish Conference on Optics and Photonics, BICOP 2018 - Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/BICOP.2018.8658333