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:
Oct. 08, 2019
Filed:
Jan. 08, 2015
The Johns Hopkins University, Baltimore, MD (US);
Joseph E. Sluz, Ellicott City, MD (US);
Michael L. Dennis, Ellicott City, MD (US);
Eric J. Adles, Ellicott City, MD (US);
Raymond M. Sova, Reisterstown, MD (US);
Chun-Huei Bair, Silver Spring, MD (US);
Darrell A. Zinn, Clarksville, MD (US);
Edward H. Darlington, Jessup, MD (US);
The Johns Hopkins University, Baltimore, MD (US);
Abstract
An optical circuit breaker includes a main optical transmission path including an optical coupler, a delay line and a protection device, and a parallel protection path configured to receive a tapped portion of a signal provided to the main optical transmission path and generate a reference signal based on the tapped portion. The protection device may be configured to be triggered to prevent an overpower condition from passing through the optical circuit breaker responsive to the reference signal exceeding a user selectable threshold. The delay line may be configured to have a longer delay than a time it takes for the protection device to be triggered via the parallel protection path.