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. 22, 2006
Filed:
Aug. 19, 2003
Aurelio Pianciola, Casteggio, IT;
Marco DE Donno, Pavia, IT;
Paolo Milanese, Olevano di Lomellina, IT;
Aurelio Pianciola, Casteggio, IT;
Marco De Donno, Pavia, IT;
Paolo Milanese, Olevano di Lomellina, IT;
Avanex Corporation, Fremont, CA (US);
Abstract
Optical pumping unit comprising a first pump source adapted to emit a first pump radiation at wavelength λpa second pump source adapted to emit a second pump radiation at wavelength λpwith wavelength λpdifferent from wavelength λpand a common coupling section comprising a first and a second port connected to the first and second pump source for respectively receiving the first and the second pump radiation; a third port for a signal radiation at wavelength λs; a fourth port, wherein the coupling section is adapted to combine, in the fourth port, the signal radiation and the first and second pump radiation through a reversal of the direction of propagation of the first pump radiation from the first port to the fourth port.