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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 17, Iss. 12 — Jun. 15, 1978
  • pp: 1953–1958

Strip-loaded waveguide formed in a graded-index LiNbO3 planar waveguide

Juichi Noda, Sakae Zembutsu, Shuzo Fukunishi, and Naoya Uchida  »View Author Affiliations


Applied Optics, Vol. 17, Issue 12, pp. 1953-1958 (1978)
http://dx.doi.org/10.1364/AO.17.001953


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Abstract

An As40Se50−xSxGe10 film strip loaded waveguide, formed in the graded-index LiNbO3 planar waveguide, has been demonstrated. Analytical results show that the optical field confinement in the waveguide loaded by the high refractive index film becomes large near the film cutoff thickness for the fundamental mode. Photostructural effect of the chalcogenide glass overcomes difficulty in precisely controlling film thickness. A 3-D waveguide has been achieved by loading As40Se10S40Ge10 film 10 μm wide on a Ti diffused LiNbO3 planar waveguide. Optical confinement in the waveguide has been improved intensively with the aid of the photostructural effect of the film.

© 1978 Optical Society of America

History
Original Manuscript: September 13, 1977
Published: June 15, 1978

Citation
Juichi Noda, Sakae Zembutsu, Shuzo Fukunishi, and Naoya Uchida, "Strip-loaded waveguide formed in a graded-index LiNbO3 planar waveguide," Appl. Opt. 17, 1953-1958 (1978)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-17-12-1953

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