Simplified laser oscillator-amplifier system
US7003005B1 · kind B1 · utility
Inventors
Key dates
| Filing date | Apr 3, 2003 |
| Grant date | Feb 21, 2006 |
| Priority date | — |
| Expiry date | Mar 15, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/1625
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention contemplates a simplified laser oscillator-amplifier system for deep UV generation. The simplified system employs same type of gain media in both the oscillator and the amplifier and utilizes a single pump pulse split to pump both the oscillator and the amplifier. A short cavity oscillator is operated near lasing threshold to produce a seed pulse with a narrow spectral bandwidth and long pulse duration. A short cavity amplifier is Q-switched to amplify the seed pulse to produce a single short pulse with good energy extraction efficiency. The amplifier is simply a short cavity, Q-switched laser. Short pulse is obtained with short cavity length and high gain of the amplifier. Consequently, the simplified laser oscillator-amplifier system can accommodate a long pump pulse to produce a nanosecond pulse suitable for deep UV laser generation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.