Method and apparatus for producing an eye-safe laser
US7352790B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 23, 2006 |
| Grant date | Apr 1, 2008 |
| Priority date | — |
| Expiry date | May 7, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/173
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A lasing apparatus includes a laser medium and a pump source. The laser medium includes one of a Holmium-doped fluoride crystal or a Holmium-doped fluorozirconate ZBLAN glass fiber. The pump source generates pulses that resonantly pump the laser medium such that the laser medium produces an output from the 5I5 level to the 5I7 level of Holmium. The pump source produces pulses having a duration that is at least as long as a storage time of the 5I5 level of the laser medium. The pump source pumps the laser medium with signals having a wavelength shorter than 1.67 μm, with the laser medium producing an output having a wavelength of about 1.67 μm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.