An efficient GaN-based two branches optical power splitter based on self-imaging phenomena

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Underwater wireless optical communication (UOWC) has been attracted to many researchers since it has higher data rate transfer compared to underwater acoustic communications. Therefore, optical devices for this application should be developed. In this paper, we proposed a design of an efficient GaN-based 1×2 optical power splitter based on self-imaging phenomena for underwater application. The design has been optimised and analysed using the finite difference beam propagation method (FDBPM) at 450nm of wavelength, in which the deep seawater has a low absorption. The optimisation was conducted by investigating the effect of waveguide parameters on the structure. The best length and width of the structure were found to be 450 μm and 10 μm, respectively. We have confirmed that the optical power was successfully split input light into two output branches with an almost perfect splitting ratio of 50% at each output port. based 1×2 optical power splitter based on self-imaging phenomena for underwater application. The design has been optimised and analysed using the finite difference beam propagation method (FDBPM) at 450nm of wavelength, in which the deep sea water has a low absorption. The optimisation was conducted by investigating the effect of waveguide parameters on the structure. The best length and width of the structure were found to be 450 μm and 10 μm, respectively. We have confirmed that the optical power was successfully split input light into two output branches with an almost perfect splitting ratio of 50% at each output port.

Original languageEnglish
Title of host publicationICTCE 2019 - Proceedings of the 2019 3rd International Conference on Telecommunications and Communication Engineering
PublisherAssociation for Computing Machinery
Pages1-5
Number of pages5
ISBN (Electronic)9781450371803
DOIs
Publication statusPublished - 9 Nov 2019
Event3rd International Conference on Telecommunications and Communication Engineering, ICTCE 2019 - Tokyo, Japan
Duration: 9 Nov 201912 Nov 2019

Publication series

NameACM International Conference Proceeding Series

Conference

Conference3rd International Conference on Telecommunications and Communication Engineering, ICTCE 2019
Country/TerritoryJapan
CityTokyo
Period9/11/1912/11/19

Keywords

  • GaN semiconductor
  • Optical power splitter
  • Underwater

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