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:
Aug. 31, 1993
Filed:
Jan. 31, 1992
Naota Uenishi, Osaka, JP;
Takafumi Uemiya, Osaka, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
Abstract
In a wavelength converter, nonlinear medium layers containing material having an increased second order susceptibility, and linear medium layers, not containing material having a nonlinear optical characteristic of the second degree, are alternatively layered. A fundamental wave (of which the angular frequency is .omega.) is incident on the multi-layered structure in a direction normal to the major surfaces of the nonlinear medium layers and the linear medium layers, thereby generating the second harmonic of the fundamental wave (of which the angular frequency is 2.omega.). The thickness of each of the linear and nonlinear medium layers is selected to be an odd-number times as long as the coherence length. The wavelength can be converted utilizing the diagonal element d.sub.ii of the second degree, nonlinear optical tensor.