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Title: Vanishing optical isolation barrier in double ion-implanted lithium niobate waveguide

Abstract

Isolation properties at different propagation directions have been studied for an optical barrier between two superposed planar waveguides produced by MeV He{sup +} implantation in LiNbO{sub 3}. The barrier exists while the modes of the double structure propagate along the optic axis. The spacing between the modes measured with a prism coupler features efficiently isolated waveguides. The barrier {open_quote}{open_quote}vanishes{close_quote}{close_quote} when the directional angle between an extraordinary wave and the optic axis exceeds 50{degree}. In this case the mode spacing shows strong coupling between the waveguides that makes the double structure similar to a single waveguide with double thickness. {copyright} {ital 1996 American Institute of Physics.}

Authors:
; ; ;  [1];  [2]
  1. Department of Physics, Alabama A&M University, Normal, Alabama 35762-1268 (United States)
  2. Solid State Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6048 (United States)
Publication Date:
Research Org.:
Oak Ridge National Laboratory
OSTI Identifier:
279976
DOE Contract Number:  
AC05-84OR21400
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 68; Journal Issue: 17; Other Information: PBD: Apr 1996
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; LITHIUM COMPOUNDS; WAVEGUIDES; NIOBATES; ION IMPLANTATION; HELIUM IONS; OPTICAL PROPERTIES

Citation Formats

Sarkisov, S.S., Williams, E.K., Ila, D., Venkateswarlu, P., and Poker, D.B. Vanishing optical isolation barrier in double ion-implanted lithium niobate waveguide. United States: N. p., 1996. Web. doi:10.1063/1.115847.
Sarkisov, S.S., Williams, E.K., Ila, D., Venkateswarlu, P., & Poker, D.B. Vanishing optical isolation barrier in double ion-implanted lithium niobate waveguide. United States. doi:10.1063/1.115847.
Sarkisov, S.S., Williams, E.K., Ila, D., Venkateswarlu, P., and Poker, D.B. Mon . "Vanishing optical isolation barrier in double ion-implanted lithium niobate waveguide". United States. doi:10.1063/1.115847.
@article{osti_279976,
title = {Vanishing optical isolation barrier in double ion-implanted lithium niobate waveguide},
author = {Sarkisov, S.S. and Williams, E.K. and Ila, D. and Venkateswarlu, P. and Poker, D.B.},
abstractNote = {Isolation properties at different propagation directions have been studied for an optical barrier between two superposed planar waveguides produced by MeV He{sup +} implantation in LiNbO{sub 3}. The barrier exists while the modes of the double structure propagate along the optic axis. The spacing between the modes measured with a prism coupler features efficiently isolated waveguides. The barrier {open_quote}{open_quote}vanishes{close_quote}{close_quote} when the directional angle between an extraordinary wave and the optic axis exceeds 50{degree}. In this case the mode spacing shows strong coupling between the waveguides that makes the double structure similar to a single waveguide with double thickness. {copyright} {ital 1996 American Institute of Physics.}},
doi = {10.1063/1.115847},
journal = {Applied Physics Letters},
number = 17,
volume = 68,
place = {United States},
year = {Mon Apr 01 00:00:00 EST 1996},
month = {Mon Apr 01 00:00:00 EST 1996}
}