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:
Dec. 02, 2008
Filed:
Jan. 30, 2003
Jinghui LI, San Jose, CA (US);
Genzao Zhang, Ottawa, CA;
Tongqing Wang, Los Altos, CA (US);
Tiangong Liu, Mountain View, CA (US);
Jinghui Li, San Jose, CA (US);
Genzao Zhang, Ottawa, CA;
Tongqing Wang, Los Altos, CA (US);
Tiangong Liu, Mountain View, CA (US);
Oplink Communications, Inc., San Jose, CA (US);
Abstract
An apparatus is provided comprising a dual optical amplifier. The two optical amplifiers are integrated, in that they share at a set of optical, electrical, or opto-electrical components. The two optical amplifiers may share a pump laser. Alternatively, the optical amplifiers may share photo-detectors. Methods of controlling the signal strength of output signals are also provided. A chip-based integrated optical dual amplifier, using Erbium-Doped Waveguides, is also provided.