Ultrashort pulse fiber amplifier with rare-earth doped gain fibers
US9812837B2 · kind B2 · utility
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5Claims
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Key dates
| Filing date | May 22, 2017 |
| Grant date | Nov 7, 2017 |
| Priority date | — |
| Expiry date | May 22, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S2301/03
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Ultrashort pulse fiber amplifier having a pulse width from 200 ps to 200 fs comprising a rare earth oxide doped multicomponent glass fibers for laser amplification, including a core and a cladding, the core comprising at least 2 weight percent glass network modifier selected from BaO, CaO, MgO, ZnO, PbO, K2O, Na2O, Li2O, Y2O3, or combinations; wherein the mode of the core is guided with step index difference between the core and the cladding, a numerical aperture of the fiber is between 0.01 and 0.04; core diameter is from about 60 microns to about 150 microns, and a length of the gain fiber is shorter than 60 cm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.