Optical waveguide having low optical damage

Details Optical waveguide having low optical damage Optical waveguide having low optical damage

1990-09-24

1991-09-10

Gonzalez, Frank

Optical waveguides

Planar optical waveguide

Thin film optical waveguide

385141, G02B 610

Patent

active

050468014

ABSTRACT:
An optical waveguide produced from a lithium niobate single crystal substrate diffused thereon titanium is claimed, wherein, as the substrate is used a single crystal of lithium niobate having an optical absorbance coefficient of 0.03 cm.sup.-1 or less for a light 420 nm in wavelength. The optical waveguide according to the present invention shows improved resistance against optical damage as compared with prior art waveguides, and is therefore suitable for devices subjected to incidence beam of higher intensity.

REFERENCES:
patent: 3957342 (1976-05-01), Newns et al.
patent: 4783136 (1988-11-01), Elman et al.

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