Solid-state spectrally-pure linearly-polarized pulsed fiber amplifier laser system useful for ultraviolet radiation generation
US5909306A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 12, 1998 |
| Grant date | Jun 1, 1999 |
| Priority date | — |
| Expiry date | Jun 12, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/117
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A solid-state laser source of tunable and narrow-bandwidth UV light is disclosed. The system utilizes a fiber amplifier in a resonant cavity. An acousto-optic or electro-optic modulator is incorporated into the cavity in such a way that the energy stored in the gain medium is efficiently extracted in the form of high-peak-power, short-duration pulses. In addition, narrow bandwidth and linearly polarized output are simultaneously achieved. The light from the cavity is converted into the ultraviolet by frequency tripling, quadrupling, and/or quintupling the infrared light. The narrow bandwidth, or relatively pure light, is preserved with intracavity filtering, and the high peak light powers increase the efficiency of the nonlinear crystals in the frequency conversion stage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.