Device for providing the cross-section of the radiation emitted by several solid-state and/or semiconductor diode lasers with a specific geometry

US6124973A · kind A · utility

Assignee

• Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V. · DE

Inventors

• Keming Du · Aachen, DE
• Peter Loosen · Stolberg, DE

Key dates

• Filing date: Jan 11, 1999
• Grant date: Sep 26, 2000
• Expiry date: Jan 11, 2019

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01S5/4025
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

The invention concerns an arrangement for shaping the geometrical cross-sion of a radiation field of a plurality of solid and/or semiconductor laser, in particular a plurality of diode laser arrays or field arrangements whose beam-outlet openings extend in a direction lying in the x-y plane and whose ray beam is radiated in the z direction, the x, y and z directions establishing a rectangular co-ordinate system, with an optical structure for generating a defined cross-section for a radiation field. The optical structure comprises reflective elements onto which the radiation of the respective lasers or laser field arrangements is guided and at which the radiation is reflected. The arrangement according to the invention is characterized in that each laser or laser field arrangement both in the x direction and in the y direction; and in that the reflection surfaces of the reflective elements are disposed in planes which are mutually offset and/or tilted such that the radiation portions reflected by the reflection surfaces are mutually offset perpendicular to the radiation diffusion direction with respect to the offset of the radiation outlet surfaces.