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HIGH POWER AMPLIFIER ON A CRYSTAL DOPED WITH RARE EARTH ELEMENTS, BASED ON A SUPERLOW QUANTUM DEFECTED INJECTION CIRCUIT USING SINGLE-MODE OR LOW-MODE FIBER LASERS
HIGH POWER AMPLIFIER ON A CRYSTAL DOPED WITH RARE EARTH ELEMENTS, BASED ON A SUPERLOW QUANTUM DEFECTED INJECTION CIRCUIT USING SINGLE-MODE OR LOW-MODE FIBER LASERS
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机译：基于使用单模或低模式光纤激光器的超流量子缺陷的注入电路掺杂有稀土元素的晶体上的高功率放大器
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FIELD: laser amplifiers.;SUBSTANCE: group of inventions relates to ytterbium (Yb) volume amplifiers doped with rare earth elements of high power and high brightness. A high average and peak power laser system with a single transverse mode operates to deliver ultra-short single-mode pulses in the femsecond, picosecond or nanosecond range at peak power levels from kW to MW. The proposed system uses a MOPA (Master Oscillator-Power Amplifier) structure containing a single-mode fiber pump source, which outputs a pulsed signal beam at or near 1030 nm, and a Yb crystal booster. The booster is characterized by end-to-end injection by means of an injection beam from a single-mode or low-mode continuous-mode fiber laser operating at a pump wavelength of 1000-1020 nm, with signal and pump wavelengths chosen to provide an ultra-low quantum defect of less than 3%.;EFFECT: increased brightness of the radiation source for pumping laser amplifiers based on crystals with a low quantum defect.;15 cl, 7 dwg
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