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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 8 — Apr. 13, 2009
  • pp: 6166–6176

A tunable channel waveguide array fabricated by the implantations of He+ ions in an electrooptical KLTN substrate.

Alexander Gumennik, Galina Perepelitsa, Abraham Israel, and Aharon J. Agranat  »View Author Affiliations


Optics Express, Vol. 17, Issue 8, pp. 6166-6176 (2009)
http://dx.doi.org/10.1364/OE.17.006166


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Abstract

An electrooptical channel waveguide array was constructed in potassium lithium tantalate niobate substrate by the implantation of He+ ions at high energies. The array was fabricated by two successive implantation sessions at 1.6 MeV and 1.2 MeV through a comb-like stopping mask that limited the implanted ions to penetrate the substrate in 1 μm wide stripes periodically distributed at 3.5 μm intervals. This generated a grating of amorphized stripes with reduced refractive index. This was followed by a uniform implantation of He+ ions at 1.8 MeV which created a bottom cladding layer below the array. Wave propagation in the array was studied by focusing a light beam at 636 nm into the central channel, and observing the wavefront it created at the output plane of the array. It was found that applying an electric field across the array strongly affects the coupling between adjacent channels, and governs the width of the wavefront at the output plane.

© 2009 Optical Society of America

OCIS Codes
(160.2100) Materials : Electro-optical materials
(220.4000) Optical design and fabrication : Microstructure fabrication
(230.7380) Optical devices : Waveguides, channeled
(250.3140) Optoelectronics : Integrated optoelectronic circuits

ToC Category:
Materials

History
Original Manuscript: January 26, 2009
Revised Manuscript: March 15, 2009
Manuscript Accepted: March 17, 2009
Published: April 1, 2009

Citation
Alexander Gumennik, Galina Perepelitsa, Abraham Israel, and Aharon J. Agranat, "A tunable channel waveguide array fabricated by the implantations of He+ ions in an electrooptical KLTN substrate.," Opt. Express 17, 6166-6176 (2009)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-17-8-6166


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References

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