Wavelength tunable laser source with parameter correction

US7430227B2 · kind B2 · utility

Assignee

• AGILENT TECHNOLOGIES, INC. · US

Inventors

• Michael Schubert · Parkton, US
• Bernd Nebendahl · Leonberg, DE
• Emmerich Mueller · Aidlingen, DE
• Ralf Haeussler · Schrobenhausen, DE
• Wolf Steffens · Herrenberg, DE

Key dates

• Filing date: Apr 30, 2002
• Grant date: Sep 30, 2008
• Expiry date: Nov 18, 2022

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01S5/143
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A wavelength tunable laser unit has a laser mode selection, and is adapted to provide a laser signal in accordance with one or more laser control parameters. For operating the laser unit, the laser signal is swept in a wavelength range, a laser operation signal indicative of the laser unit's operation during the sweep is received, and the laser operation signal is analyzed for detecting an indication of a mode hop occurred in the generated laser signals during the sweep. At least one correction value is determined based on the detected mode hop indication, and at least one of the one or more laser control parameters, applicable for a next wavelength sweep, is modified based on the determined at least one correction value.