Fiber and channel waveguide coupling improvement by mode pattern control

Jiunn Chyi Lee, How Chiang Lee, Ching Ting Lee

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

Abstract

In practical applications, the resultant channel waveguide of LiNbO3 substrate should be efficiently coupled to the single mode fiber. The core shape of single mode fiber is a circular distribution, but that of the conventional Ti:LiNbO3 channel waveguide is a semi-elliptical distribution. Optical mode patterns of channel waveguide and single mode fiber can not achieve the mode matching conditions. To improve coupling efficiency between channel waveguide and single mode fiber with arbitrary dimensions, the refractive index profiles and associated fundamental mode patterns of buried Ti/Mg:LiNbO3 channel waveguides are simulated and controlled from fabrication parameters. We have also investigated the dependences of coupling loss on radial and axial offsets.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherPubl by Int Soc for Optical Engineering
Pages76-85
Number of pages10
ISBN (Print)0819410136
Publication statusPublished - 1992 Dec 1
EventOptoelectronic Component Technologies - Hsinchu, Taiwan
Duration: 1992 Dec 161992 Dec 18

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume1813
ISSN (Print)0277-786X

Other

OtherOptoelectronic Component Technologies
CityHsinchu, Taiwan
Period92-12-1692-12-18

All Science Journal Classification (ASJC) codes

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

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