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. 10, 2012
Filed:
Sep. 12, 2007
Yasuharu Koyata, Tokyo, JP;
Takayuki Yanagisawa, Tokyo, JP;
Shuhei Yamamoto, Tokyo, JP;
Yoshihito Hirano, Tokyo, JP;
Tsutomu Nagatsuka, Tokyo, JP;
Yasuharu Koyata, Tokyo, JP;
Takayuki Yanagisawa, Tokyo, JP;
Shuhei Yamamoto, Tokyo, JP;
Yoshihito Hirano, Tokyo, JP;
Tsutomu Nagatsuka, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A wavelength converting element that is of a planar waveguide type, includes a plate-like nonlinear optical material, and performs a wavelength conversion on a fundamental wave of a laser beam by propagating the fundamental wave in a plurality of laser oscillation modes in a direction perpendicular to a main surface of the plate-like nonlinear optical material, the direction being perpendicular to an optical axis, wherein periods of polarization inversions of the nonlinear optical material are changed so that each of the periods has a width of a phase matching band A that includes phase matching conditions of at least two of the plurality of laser oscillation modes and so that a non-polarization-inversion region and a polarization inversion region are formed in the nonlinear optical material.