Multi-mode laser oscillator with large intermode spacing
US5974060A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 5, 1999 |
| Grant date | Oct 26, 1999 |
| Priority date | — |
| Expiry date | Jan 5, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/2333
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A laser crystal (25) having a relatively short optical length functions as a seed laser (1) and simultaneously establishes the wide separation between longitudinal modes. Pulsed operation causes multiple longitudinal modes to co-exist before competition acts to extinguish modes. The seed laser (1) is isolated from the relatively higher peak power output beam (4). Further, the injection seeded slave resonator (6) optical cavity length is adjusted by mechanical, electromechanical and/or electro-optical component(s) to harmonize the slave resonator optical cavity to the seed laser (1) optical cavity. A number of widely separated longitudinal modes are simultaneously output as a pulsed, high optical quality beam having a broad frequency range, short temporal coherence, and stable simultaneous operation of the several modes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.