The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 27, 1992
Filed:
Jun. 24, 1991
Ryo Enomoto, Gifu, JP;
Masaya Yamada, Gifu, JP;
Ibide Co., Ltd., Ogaki, JP;
Abstract
A second harmonic wave generating device comprises a LiTaO.sub.3 thin film formed on a LiNbO.sub.3 substrate and a LiNbO.sub.3 thin film waveguide layer formed in the LiTaO.sub.3 thin film. The thickness (T(.mu.m)) of the LiNbO.sub.3 thin film waveguide layer, an ordinary refractive index (.eta..sub.oS1) of the LiTaO.sub.3 thin film at a fundamental wavelength (.lambda.(.mu.m)), an ordinary refractive index (.eta..sub.oF1) of the LiNbO.sub.3 thin film waveguide layer at the fundamental wavelength (.lambda.(.mu.m)), an extraordinary refractive index (.eta..sub.eS2) of the LiTaO.sub.3 thin film at a second harmonic wavelength (.lambda./2, (.mu.m)) and an extraordinary refractive index (.eta..sub.eF2) of the LiNbO.sub.3 thin film waveguide layer at the second harmonic wavelength (.lambda./2, (.mu.m)) are individually within the following specific values: