Coating processes – Electrical product produced – Integrated circuit – printed circuit – or circuit board
Patent
1976-11-22
1977-11-01
Corbin, John K.
Coating processes
Electrical product produced
Integrated circuit, printed circuit, or circuit board
427162, 350160R, G02B 523, B05D 506
Patent
active
040563049
ABSTRACT:
An optical waveguide of niobium-doped lithium tantalate single crystal has excellent low loss waveguiding properties with strong electro-optic behavior. The waveguides are made by depositing a film of niobium on a polished lithium tantalate crystal, annealing the crystal so as to diffuse the niobium into the crystal and cooling the crystal.
REFERENCES:
patent: 3417032 (1968-12-01), Bonner et al.
patent: 3785717 (1974-01-01), Cresot et al.
patent: 3837827 (1974-09-01), Corruthers et al.
Hammer et al., "Low Loss Single Mode Optical Waveguide", Applied Physics Letters, vol. 24, June 1, 1974, pp. 545-547.
Tien et al., "Optical Waveguide Modes in Single-Crystalline LiNbO.sub.3 -LiTa O.sub.3 Solid-Solution Films", Appl. Physics Lett. vol. 24, May 1974, pp. 503-506.
Minakata et al., "LiNb.sub.x Ta.sub.1-y O.sub.3 Optical Waveguiding Layer in LiTaO.sub.3 Applied Physics Letters, vol. 26, pp. 395-398, Apr. 1, 1975.
Standley et al., "Nb-diffused LiTaO.sub.3 Optical Waveguides", Applied Physics Letters, vol. 25, pp. 711-713, Dec. 1974.
Christoffersen H.
Corbin John K.
Harcarik Joseph T.
Hille Rolf
Morris Birgit E.
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