Invention Grant
- Patent Title: Clock recovery circuits, systems and implementation for increased optical channel density
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Application No.: US15795676Application Date: 2017-10-27
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Publication No.: US10243671B1Publication Date: 2019-03-26
- Inventor: Sadok Aouini , Bilal Riaz , Naim Ben-Hamida , Lukas Jakober , Ahmad Abdo
- Applicant: Ciena Corporation
- Applicant Address: US MD Hanover
- Assignee: Ciena Corporation
- Current Assignee: Ciena Corporation
- Current Assignee Address: US MD Hanover
- Agency: Clements Bernard Walker PLLC
- Agent Christopher L. Bernard; Lawrence A. Baratta, Jr.
- Main IPC: H04L7/033
- IPC: H04L7/033 ; H04B10/61 ; H04B10/572

Abstract:
Techniques and circuits are proposed to increase averaging in the clock recovery band based on an amount of channel overlap in receivers using excess bandwidth for clock recovery, to mitigate the impact of spectral energy leaking into an active channel of interest from an adjacent active channel and to improve the accuracy of the phase estimate of the received transmitted clock.
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