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. 05, 2005
Filed:
Mar. 14, 2002
Larry R. Marshall, Mountain View, CA (US);
Larry R. Marshall, Mountain View, CA (US);
Lightbit Corporation, Inc., Mountain View, CA (US);
Abstract
All-optical wavelength converters based upon difference frequency generation (DFG) in optical chips with periodically poled materials are presented. Tunable continuous wave (CW) laser sources and various arrangements are made with the optical input signals in different ITU channels. In some arrangements the laser source(s) acts as the pump for the conversion of the input signals to different wavelengths. In other arrangement, the amplified input signals acts as a pump with the laser source in the role of the input signal. The net effect is that input signals are converted to different wavelengths. One-to-any, any-to-one, and any-to-any wavelength converters are described. Simultanenous conversation can also be preformed so that bands of signals may also be converted.