| 简介 |
Various embodiments described herein comprise a laser and/or an amplifier system including a doped gain fiber (1404) having ytterbium ions in a phosphosilicate glass. Various embodiments described herein increase pump absorption to at least about 1000 dB/m - 9000 dB/m. The use of these gain fibers provide for increased peak -powers and/or pulse energies. The various embodiments of the doped gain fiber (1404) having ytterbium ions in a phosphosilicate glass exhibit reduced photo-darkening levels compared to photo-darkening levels obtainable with equivalent doping levels of an ytterbium doped silica fiber. |
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