Laser gas orifice injection system
US4799231A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 1987 |
| Grant date | Jan 17, 1989 |
| Priority date | — |
| Expiry date | Sep 24, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/076
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A laser resonator system including an optical resonator whose side wall has an orifice through which gas may enter the resonator's interior, and may subsequently flow along the resonator's longitudinal axis. An elongated electrode (which preferably is an anode) is positioned at the orifice in electrical communication with the entering gas so that the projection of the electrode's tip on the plane of the orifice does not coincide with the center of the orifice. In a preferred embodiment, the electrode's longitudinal axis is aligned generally perpendicular to the plane of the orifice. In another preferred embodiment, two such electrode-orifice pairs are provided and are separated by a small distance along the resonator's axis. The orifice positions are preferably on opposite sides of the resonator, so that they are separated by an azimuthal angle substantially equal to 180.degree. with respect to the resonator tube's longitudinal axis. The relative position and orientation of each electrode-orifice pair results in an improved, flatter gas velocity profile downstream from the orifice.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.