High-gain operation of fiber lasers at long wavelengths
US9466939B2 · kind B2 · utility
4Cited by
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19Claims
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Key dates
| Filing date | Sep 2, 2015 |
| Grant date | Oct 11, 2016 |
| Priority date | — |
| Expiry date | Sep 2, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/23
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method of operating a Tm:doped fiber amplifier including selecting a length of Tm:doped optical fiber to be less than one hundred meters, doping the optical fiber with active ions at a doping level of greater than one percent, optically pumping the doped optical fiber with a first laser beam having a wavelength longer than the wavelength where a maximum absorption cross section is provided by the active ions, and creating a population inversion between two active ion energy levels with the first laser beam, the active ions providing a gain to a second laser beam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.