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类噪声脉冲(NLP)是锁模激光器在一定条件下生成的一种特殊脉冲,具有能量高、脉宽宽、相干性低等特点。近年来,由于稀土元素掺杂技术、锁模技术和光纤放大技术的不断发展以及抽运能量的不断提升,类噪声脉冲光纤激光器得到了迅速发展。基于此,描述了使用不同锁模技术、工作在不同色散区的类噪声脉冲光纤激光器。依据其脉冲产生机理、脉冲光学性质等特点进行分类叙述,综述了国内外这一领域的研究现状及进展。最后,对近年来类噪声脉冲激光器在生产实践中的具体应用进行了简要阐述。
The noise-like pulse (NLP) is a special pulse generated by a mode-locked laser under certain conditions. It has the characteristics of high energy, wide pulse width and low coherence. In recent years, due to the rare-earth element doping technology, the mode-locked technology and the optical fiber amplification technology and the continuous development of pumping energy, noise-like pulsed fiber lasers have been developed rapidly. Based on this, the noise-like pulsed fiber lasers operating in different dispersion regions using different clamping techniques are described. According to its pulse generation mechanism, pulsed optical properties and other characteristics of the classification described, reviewed the research status and progress in this field at home and abroad. Finally, the application of noise-like pulse laser in production practice in recent years is briefly described.