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:
Feb. 16, 2016
Filed:
Sep. 29, 2008
David Kerr, Ellicott City, MD (US);
Mark Laliberte, Columbia, MD (US);
Avery Van Gieson, Laurel, MD (US);
John Lai, Fulton, MD (US);
Kim Jepsen, Ellicott City, MD (US);
Wei LU, Bear, DE (US);
Yan Han, Laurel, MD (US);
Marc Placidet, Columbia, MD (US);
Ulrik Gliese, Columbia, MD (US);
David Copeland, Silver Spring, MD (US);
Guangning Yang, Clarksville, MD (US);
David Kerr, Ellicott City, MD (US);
Mark LaLiberte, Columbia, MD (US);
Avery Van Gieson, Laurel, MD (US);
John Lai, Fulton, MD (US);
Kim Jepsen, Ellicott City, MD (US);
Wei Lu, Bear, DE (US);
Yan Han, Laurel, MD (US);
Marc Placidet, Columbia, MD (US);
Ulrik Gliese, Columbia, MD (US);
David Copeland, Silver Spring, MD (US);
Guangning Yang, Clarksville, MD (US);
Infinera Corporation, Sunnyvale, CA (US);
Abstract
A communication system may include a first control circuit to detect a break on a first optical link; a first optical source to supply a first optical signal on a second optical link in response to detecting the break on the first optical link, the first optical signal propagating in a first direction on the second optical link; a second control circuit to detect a presence of the first optical signal on the second optical link, and output a control signal in response to detecting the presence of the first optical signal; and a second optical source to supply a second optical signal on the second optical link, the second optical signal propagating in a second direction opposite the first direction, where the Raman pump is disabled in response to the control signal.