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. 10, 2010
Filed:
May. 11, 2004
Younés Messaddeq, Araraquara, BR;
Sidney J. L. Ribeiro, Araraquara, BR;
Edison Pecoraro, Araraquara, BR;
Eduardo Mauro Nascimento, Bauru, BR;
Younés Messaddeq, Araraquara, BR;
Sidney J. L. Ribeiro, Araraquara, BR;
Edison Pecoraro, Araraquara, BR;
Eduardo Mauro Nascimento, Bauru, BR;
Ericsson Telecomunicacoes S.A., Sao Paulo - SP, BR;
Abstract
A germanate glass composition suitable for use in a fiber amplifier for broadband amplification of optical signals is provided. The glass preferably includes 35-75% GeO, 0-45% PbO, 5-20% BaO, 5-20% ZnO, and 2-10% RO (R=Na, Li, K). It is doped with thulium ions (Tm) and codoped with holmium ions (Ho). The glass composition of results in a remarkably large bandwidth as compared with previous glasses. It is also highly compatible with existing silica optical fibers.