Laser beam shaping system
US5805748A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 23, 1997 |
| Grant date | Sep 8, 1998 |
| Priority date | — |
| Expiry date | Apr 23, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/4012
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A horizontally elongated laser beam is divided into a plurality of beam sections which are arranged along the horizontal direction and vertically deflected to different degrees by a beam deflecting beam guide, and the beam sections leaving the beam deflecting beam guide at different vertical positions are horizontally deflected by a beam converging beam guide to different degrees so that the beam sections may converge along a vertical line, and the laser beam which was initially laterally elongated may be shaped into a more circular cross section which is desirable for pumping a laser system and other applications. Each of the beam guides may consist of a plurality of transparent plate members which are placed one over the other, and each beam segment is conduct through a corresponding one of the plate member along a path parallel to the major surface of the plate members. The desired amount of deflection of each beam segment can be achieved by appropriate selection of the geometry and/or the refractive property of the corresponding plate member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.