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:
Jul. 07, 2026
Filed:
Apr. 02, 2024
Ciena Corporation, Hanover, MD (US);
Michael Vitic, Chelsea, CA;
Scott Kuntze, Ottawa, CA;
Ronald C. Hartman, Fitzroy Harbour, CA;
Zhan Xu, Ottawa, CA;
Ciena Corporation, Hanover, MD (US);
Abstract
A coherent optical modem is configured to support fast Loss of Signal (LOS) detection, e.g., <1 ms, and includes an Intradyne Coherent Receiver (ICR) with input power reporting circuitry configured to monitor one or more received optical signals; and processing circuitry communicatively coupled to the ICR and configured to receive a first interrupt from the input power reporting circuitry based on the input power reporting circuitry monitoring the one or more received optical signals, responsive to the first interrupt, prioritize detection of LOS in the processing circuitry, and, responsive to the detection of the LOS, provide a second interrupt to a host device associated with the coherent optical modem.