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. 29, 1991
Filed:
Jan. 11, 1991
Kiyofumi Chikuma, Saitama, JP;
Sota Okamoto, Saitama, JP;
Pioneer Electronic Corporation, Tokyo, JP;
Abstract
A fiber type wavelength converter formed of a core and a clad surrounding the core, the core consisting of a first core formed of a nonlinear crystalline material, for which, when the refractive index to the primary light incident on and guided by the core is represented by .eta.G.sup..omega. and the refractive index to a converted second harmonic is represented by .eta.G.sup.2.omega., the relationship .eta.G.sup.2.omega. >.eta.G.sup..omega. holds, and a second core formed of optical glass covering the first core. Specifically, the optical glass for the second core is such optical glass, for which, when the refractive index thereof to the primary light incident thereon is represented by .eta.GL.sup..omega., the relationship ##EQU1## holds.