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:
Jun. 26, 2007
Filed:
Oct. 11, 2002
Jian Liu, Mountain View, CA (US);
Zheng Wang, San Jose, CA (US);
Xuejun LU, Fremont, CA (US);
Yonglin Huang, Milpitas, CA (US);
Jian Liu, Mountain View, CA (US);
Zheng Wang, San Jose, CA (US);
Xuejun Lu, Fremont, CA (US);
Yonglin Huang, Milpitas, CA (US);
Finisar Corporation, Sunnyvale, CA (US);
Abstract
Erbium doped fiber amplifiers for dense wavelength division multiplexed (DWDM) metro area optical networks may be configured as either high gain amplifiers or power amplifiers. The erbium doped fiber type, length, and pump power level are selected so that the shape of the gain spectra is approximately the same for single channel or multi-channel operation. In one embodiment, the same erbium doped fiber type and length is used for both power amplifiers and high gain amplifiers, reducing manufacturing costs.