Optical network terminal (ONT) wavelength tuning and correpsonding calibration procedure

US9780908B2 · kind B2 · utility

Assignee

• Alcatel Lucent · FR

Inventors

• Peter Vetter · Ekeren, BE
• David A. Duque · Fryeburg, US
• Robert L. Farah · Brooklyn, US
• Joseph L. Galaro · Holmdel, US
• Man Fai Lau · New Providence, US
• Wolfgang Poehlmann · Stuttgart, DE
• Doutie T. van Veen · New Providence, US
• Haibo Wen · Shanghai, CN

Key dates

• Filing date: Feb 13, 2014
• Grant date: Oct 3, 2017
• Expiry date: May 20, 2034

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04J14/0256
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

Tuning an optical network unit (ONU) to an appropriate communication wavelength may be performed by initiating an activation procedure responsive to receiving a wavelength configuration message, and identifying an instruction in the wavelength configuration message to modify a present wavelength used by the network unit to a different wavelength. The process may also provide assigning an optical network unit identifier (ONU-ID) to the network unit, modifying the present wavelength to the different wavelength, and transmitting subsequent data messages from the network unit at the different wavelength.