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Optical characterization of buried planar waveguides created by stoichiometric implantation of Ti and O into LiNbO{sub 3}

Conference ·
OSTI ID:199714
;  [1];  [2]
  1. A&M Univ., Normal AL (United States)
  2. Oak Ridge National Lab., TN (United States)
Subsurface optical waveguides created in x-cut LiNbO{sub 3} by the stoichiometric implantation of Ti and O at 500{degrees} have been characterized for optical losses at 672 nm. Implant doses were 2.5 x 10{sup 17} /cm{sup 2} and 7.5 x 10{sup 17} /cm{sup 2} for Ti and O respectively at Ti energies of 320 keV and 5.5 MeV and at O energies of 120 keV and 3.0 MeV. These implants produced waveguides from 0.2 {mu}m and 1.8 {mu} m below the surface. The optical losses at 672 nm were determined using end-fire coupling techniques due to the inability of prism couplers to couple to the subsurface guides. The keV regime implants yielded single mode waveguides while the high energy implants created multimode guides due to greater straggling.
OSTI ID:
199714
Report Number(s):
CONF-941129--
Country of Publication:
United States
Language:
English