Laser amplifier with variable and matched wavelength pumping
US6384368B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | May 5, 1999 |
| Grant date | May 7, 2002 |
| Priority date | — |
| Expiry date | May 5, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/041
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A laser amplifier for laser shock processing having a pump cavity supplying photons at selected or variable wavelengths and orientations to that of the gain medium present therein. In one embodiment, the pump wavelength is substantially equal to a corresponding wavelength difference between the upper laser state energy level and the ground state energy level of atoms composing the gain medium. In an alternate embodiment, photonic energy is applied asymmetrically to the gain medium to produce a desired spatial energy profile. The pump cavity may comprise an alexandrite laser or a diode laser system. Depending on the type of pump cavity, the photonic energy is applied to the gain medium either longitudinally or transverse to the laser beam axis of traversing therein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.