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:
Jan. 18, 2022
Filed:
Jan. 17, 2019
Applicant:
Subcom, Llc, Eatontown, NJ (US);
Inventors:
Sheng Zhang, Morganville, NJ (US);
Haifeng Li, Morganville, NJ (US);
Assignee:
SubCom, LLC, Eatontown, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 10/00 (2013.01); H04B 10/291 (2013.01); H04J 14/02 (2006.01); H04B 10/294 (2013.01); H04J 14/00 (2006.01);
U.S. Cl.
CPC ...
H04B 10/2912 (2013.01); H04B 10/294 (2013.01); H04J 14/0221 (2013.01);
Abstract
A system and method for efficient optical signal amplification with system monitoring features are provided. For example, an optical repeater may include two different 4-port thin-film gain flattening filters (TF-GFFs), which may be connected to provide a high-loss loop-back (HLLB) path in the optical repeater for system monitoring. The 4-port TF-GFF may have four different ports and may integrate the functionalities of a conventional GFF and a coupler into a single component, thereby increasing power efficiency of the optical repeater.