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Arrays of soliton waveguides in lithium niobate for parallel coupling

S. T. POPESCU1,* , A. PETRIS1, V. I. VLAD1, E. FAZIO2

Affiliation

  1. Natl. Institute for Laser, Plasma and Radiation Physics, Dept. of Lasers, Bucharest-Magurele, Romania
  2. University “La Sapienza” of Rome, Dept. of Energetics, Italy

Abstract

Lithium niobate is a promising material for all-optical integrated photonics, particularly for soliton waveguides. An array of 13 x 10 soliton waveguides has been induced in a lithium niobate crystal using c.w. laser light at 532 nm wavelength. The spatial separation between waveguides (100 µm) ensures soliton writing without interactions, avoiding the possible deformation of soliton channels over a long distance (more than 15 diffraction lengths) and allowing the individual addressing of each soliton waveguide. The coupling and guiding properties of this parallel optical coupler at different wavelengths, with c.w. and pulsed laser signals, are investigated..

Keywords

Soliton arrays, Parallel processing, Lithium niobate, Ultra-fast coupling.

Submitted at: Dec. 15, 2009
Accepted at: Jan. 20, 2010

Citation

S. T. POPESCU, A. PETRIS, V. I. VLAD, E. FAZIO, Arrays of soliton waveguides in lithium niobate for parallel coupling, Journal of Optoelectronics and Advanced Materials Vol. 12, Iss. 1, pp. 19-23 (2010)