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:
Jan. 14, 1992
Filed:
Sep. 20, 1990
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
A fundamental wave is caused to enter a Cerenkov-radiation type optical wavelength converter device which is formed of a single-crystal organic nonlinear optical material of an orthorhombic system of mm2 point group disposed in a cladding as a waveguide and a wavelength-converted wave such as a second harmonic whose wavelength within the range of 430 to 500 nm is extracted. The wavelength of the fundamental wave is selected so that the wavelength of the wavelength-converted wave becomes longer than the absorption edge of the organic nonlinear optical material by at least 30 nm. The fundamental wave is linearly polarized in the direction of the x-optic-axis or the y-optic-axis of the crystal of the organic nonlinear optical material and then caused to enter the optical wavelength converter device, and a wavelength-converted wave which is linearly polarized in the z-optic-axis of the crystal is extracted.