Laser system and method for gain medium with output beam transverse profile tailoring longitudinal strips
US6614826B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 5, 2000 |
| Grant date | Sep 2, 2003 |
| Priority date | — |
| Expiry date | May 5, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/22
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A laser system and method having an output laser beam uses an gain medium with one or more output beam transverse profile tailoring (OBTPT) longitudinal strips to tailor the transverse profile of the output laser beam to a desirable shape such as having a symmetrical profile transverse to the direction of propagation of the output laser beam. The laser system has two reflector systems on opposite ends in the long z-axis dimension of the gain medium to form a resonator that outputs the output laser beam following the same long z-axis dimension. In some embodiments the gain medium has a narrow y-axis dimension and a wide x-axis dimension. In these embodiments the OBTPT longitudinal strips have lengths running the long z-axis dimension, widths running the wide x-axis dimension and thicknesses running the narrow y-axis dimension of the gain medium. The widths of the OBTPT longitudinal strips are generally chosen with respect to coupling width of the output laser beam. The OBTPT longitudinal strips are contoured to change their y-axis thicknesses with respect to position along the z-axis so that the output laser beam is formed with a desired transverse profile upon exiting the laser sys…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.