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:
Apr. 25, 2006
Filed:
Aug. 25, 2004
Takeshi Kamijoh, Tokyo, JP;
Chang-qing Xu, Hamilton, CA;
Takeshi Kamijoh, Tokyo, JP;
Chang-qing Xu, Hamilton, CA;
Oki Electric Industry Co., Ltd., Tokyo, JP;
Abstract
A wavelength conversion element which can set the wavelength of a pump light to a wavelength longer or shorter than the wavelength of a plurality of signal lights and a wavelength of a plurality of conversion lights present in an optical communication band, and a method for using such a wavelength conversion element are provided. A first pump light with a wavelength λof 1.51 μm, a second pump light with a wavelength λof 1.57 μm, and a signal light with a wavelength of λof 1.55 μm are multiplexed in a multiplexer and introduced as an incident light into an optical waveguide of a wavelength conversion element. In the optical waveguide, an SF light with a wavelength λof 0.77 μm is generated by the SFG of the first pump light with a wavelength λof 1.51 μm and the second pump light with a wavelength λof 1.57 μm, the signal light is wavelength converted as a DF light (wavelength 1.53 μm) by the DFG of the SF light and signal light, and this DF light is outputted as the converted light (wavelength λ=1.53 μm).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile