Transmit optical power adjustment based on receive optical power measurements

US11212001B1 · kind B1 · utility

Assignee

• International Business Machines Corporation · US

Inventors

• Pasquale A. Catalano · Wallkill, US
• Christopher J. Colonna · Ossining, US
• Mario Borelli · Highland, US
• Faezeh Gholami · Guttenberg, US
• Andrew G. Crimmins · Montrose, US
• John S. Werner · Fishkill, US
• Arkadiy O. Tsfasman · Wappingers Falls, US

Key dates

• Filing date: Nov 20, 2020
• Grant date: Dec 28, 2021
• Expiry date: Nov 20, 2040

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04B10/672
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

Aspects include obtaining, by a sending system, a measured receive optical power level of an optical signal that was received at a receiving system coupled to the sending system via an optical network. The optical signal was sent via an optical transmitter of the sending system to an optical receiver of the receiving system. An optimal receive optical power level of the optical receiver of the receiving system is determined by the sending system. The sending system adjusts an output optical power level of the optical transmitter in response to determining that the measured receive optical power level is not within a threshold of the optimal receive optical power level. The adjusting is performed without decoupling the sending system from the receiving system.