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首页> 外文期刊>Optics Letters >Multikilohertz optical parametric chirped pulse amplification in periodically poled stoichiometric LiTaO_(3) at 1235 nm
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Multikilohertz optical parametric chirped pulse amplification in periodically poled stoichiometric LiTaO_(3) at 1235 nm

机译:周期性极化化学计量LiTaO_(3)中1235 nm的多千赫兹光学参量pulse脉冲放大

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摘要

We demonstrate, for the first time to our knowledge, multikilohertz operation of a double-stage optical parametricchirped pulse amplifier with periodically poled stoichiometric LiTaO_(3) crystals, seeded by a homemade Cr:forsterite oscillator operating at 1235 nm. The repetition rate of the amplifier could easily be tuned without the use of electro-optic modulators by using a repetition-rate-tunable kilohertz pump laser operating at 532 nm and a time-synchronization unit. Amplified total (signal + idler) energies of 55.9 and 36.2 (mu)J were achieved at 1 and 5 kHz, respectively. After recompression, the pulse width of amplified idler pulses at 1235 nm amounted to 530 fs.
机译:我们首次了解到,采用周期性极化化学计量LiTaO_(3)晶体的双级光学参量pulse脉冲放大器的多千赫兹操作,该晶体由工作于1235 nm的自制Cr:镁橄榄石振荡器注入。通过使用工作在532 nm的重复率可调千赫泵浦激光器和时间同步单元,无需使用电光调制器即可轻松调节放大器的重复率。在1 kHz和5 kHz时分别获得了55.9和36.2μJ的放大总(信号+闲置)能量。重新压缩后,在1235 nm处放大的空转脉冲的脉冲宽度总计为530 fs。

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