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首页> 外文期刊>Japanese journal of applied physics >Kilowatt-level, high brightness, narrow-linewidth polarization-maintained fiber amplifiers based on laser gain competition
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Kilowatt-level, high brightness, narrow-linewidth polarization-maintained fiber amplifiers based on laser gain competition

机译：基于激光增益竞争的千瓦级，高亮度，窄线宽偏振保持光纤放大器

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摘要

Stimulated Brillouin scattering (SBS) management in kilowatt-level, high brightness, narrow spectral width, and all polarization-maintained amplifiers using laser gain competition is demonstrated. This method can increase the SBS threshold of the fiber amplifier by more than double without changing the linewidth. By further incorporating the phase modulation technique, the SBS threshold is scaled to be as high as 32.4 times compared to the single frequency amplification. An output power of 1082 W is achieved with a polarization extinction ratio (PER) of similar to 14 dB, linewidth of 7.6 GHz and beam quality (M-2 factor) of similar to M-2 = 1.14 in a preliminary validation experiment. This kind of fiber source has great potential in applications of high-power coherent beam combining or spectral beam combining systems. (C) 2018 The Japan Society of Applied Physics
机译：演示了使用激光增益竞争以千瓦级，高亮度，窄光谱宽度以及所有偏振保持放大器的受激布里渊散射（SBS）管理。这种方法可以将光纤放大器的SBS阈值提高两倍以上，而无需更改线宽。通过进一步合并相位调制技术，与单频放大相比，SBS阈值被缩放为高达32.4倍。在初步验证实验中，偏振消光比（PER）接近14 dB，线宽<7.6 GHz和光束质量（M-2因子）接近M-2 = 1.14，可实现1082 W的输出功率。这种光纤源在高功率相干合束或光谱合束系统的应用中具有巨大的潜力。 （C）2018日本应用物理学会

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  • 来源
    《Japanese journal of applied physics》 |2019年第1期|012007.1-012007.5|共5页
  • 作者

    Meng Daren; Ma Pengfei; Wang Xiaolin; Ma Yanxing; Su Rongtao; Zhou Pu; Yang Lijia;

  • 作者单位

    Natl Univ Def Technol, Coll Adv Interdisciplinary Studies, Changsha 410073, Hunan, Peoples R China;

    Natl Univ Def Technol, Coll Adv Interdisciplinary Studies, Changsha 410073, Hunan, Peoples R China|Hunan Prov Collaborat Innovat Ctr High Power Fibe, Changsha 410073, Hunan, Peoples R China|Hunan Prov Key Lab High Energy Laser Technol, Changsha 410073, Hunan, Peoples R China;

    Natl Univ Def Technol, Coll Adv Interdisciplinary Studies, Changsha 410073, Hunan, Peoples R China|Hunan Prov Collaborat Innovat Ctr High Power Fibe, Changsha 410073, Hunan, Peoples R China|Hunan Prov Key Lab High Energy Laser Technol, Changsha 410073, Hunan, Peoples R China;

    Natl Univ Def Technol, Coll Adv Interdisciplinary Studies, Changsha 410073, Hunan, Peoples R China|Hunan Prov Collaborat Innovat Ctr High Power Fibe, Changsha 410073, Hunan, Peoples R China|Hunan Prov Key Lab High Energy Laser Technol, Changsha 410073, Hunan, Peoples R China;

    Natl Univ Def Technol, Coll Adv Interdisciplinary Studies, Changsha 410073, Hunan, Peoples R China|Hunan Prov Collaborat Innovat Ctr High Power Fibe, Changsha 410073, Hunan, Peoples R China|Hunan Prov Key Lab High Energy Laser Technol, Changsha 410073, Hunan, Peoples R China;

    Natl Univ Def Technol, Coll Adv Interdisciplinary Studies, Changsha 410073, Hunan, Peoples R China|Hunan Prov Collaborat Innovat Ctr High Power Fibe, Changsha 410073, Hunan, Peoples R China|Hunan Prov Key Lab High Energy Laser Technol, Changsha 410073, Hunan, Peoples R China;

    Natl Univ Def Technol, Coll Adv Interdisciplinary Studies, Changsha 410073, Hunan, Peoples R China|Hunan Prov Collaborat Innovat Ctr High Power Fibe, Changsha 410073, Hunan, Peoples R China|Hunan Prov Key Lab High Energy Laser Technol, Changsha 410073, Hunan, Peoples R China;

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