Laser radiation source and process for generating a coherent total laser radiation field

US6570896B2 · kind B2 · utility

Assignees

• DEUTSCHES ZENTRUM FÜR LUFT—UND RAUMFAHRT E.V. · DE
• OSRAM Opto Semiconductors GmbH · DE
• Universitaet Stuttgart Institut fuer Strahlwerkzeuge · DE

Inventors

• Norbert Bissinger · Uhingen, DE
• Uwe Brauch · Heitersheim, DE
• Guido Hergenhan
• Hans Opower · Krailling, DE
• Marcus Scholl · Stolberg, DE
• Bernd Luecke · Stuttgart, DE
• Werner Spaeth · Holzkirchen, DE

Key dates

• Filing date: Jun 5, 2001
• Grant date: May 27, 2003
• Expiry date: Jun 5, 2021

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01S5/423
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A laser radiation source is provided with an array of N individual slave laser diodes in a predetermined surface area. Adjustable power supply networks enable adjustment of the slave laser diodes relative to one another for operation in a stable manner. The slave power supply has a separate power supply network for each slave laser diode. Each of the power supply networks can be adjusted with respect to the current supplied to the respective slave laser diode during a certain operating period. This enables adjusting the slave laser diodes relative to one another. The power supply networks can be connected in parallel and supplied by a common source.