腔内拉曼频率梳状产生的峰值功率随机光纤激光器

IF 5.2 1区 物理与天体物理 Q1 OPTICS
Xinxing Liu, Wenhui Hao, Zhihui Yang, Yulong Tang
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引用次数: 3

摘要

摘要随机光纤激光器(RFL)已成为探索新型光动力学和开发新型功能光电器件的良好平台。然而,由于RFLs本身的随机性,将其发射调节成规则的窄脉冲是一个挑战。在这里,通过设计激光器的结构(腔Q值,增益分布和非线性),我们证明了自调Q随机镱光纤激光器可以实现窄脉冲(~2.5 ns),峰值功率高达64.3 kW。基于高腔内强度和多种非线性过程(受激布里渊散射、受激拉曼散射和四波混频)的有效相互作用,首次在单模石英光纤中产生了超过一倍频的可见-近红外拉曼频率梳。对拉曼峰进行光谱滤波后,得到了持续时间为几百皮秒的波长可调脉冲。这种峰值功率随机调q光纤激光器和可见光-近红外区宽频梳可以在光谱学、生物医学成像和量子信息等多个领域得到应用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
High-peak-power random Yb-fiber laser with intracavity Raman-frequency comb generation
Abstract The random fiber laser (RFL) has been an excellent platform for exploring novel optical dynamics and developing new functional optoelectronic devices. However, it is challenging for RFLs to regulate their emission into regular narrow pulses due to their intrinsic randomness. Here, through engineering the laser configuration (cavity Q value, gain distribution and nonlinearity), we demonstrate that narrow (~2.5 ns) pulses with record peak power as high as 64.3 kW are achieved from a self-Q-switched random ytterbium fiber laser. Based on high intracavity intensity and efficient interplay of multiple nonlinear processes (stimulated Brillouin scattering, stimulated Raman scattering and four-wave mixing), an over-one-octave visible-near-infrared (NIR) Raman-frequency comb is generated from single-mode silica fibers for the first time. After spectrally filtering the Raman peaks, wavelength-tunable pulses with durations of several hundreds of picoseconds are obtained. Such a high-peak-power random Q-switched fiber laser and wide frequency comb in the visible-NIR region can find applications in diverse areas, such as spectroscopy, biomedical imaging and quantum information.
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来源期刊
High Power Laser Science and Engineering
High Power Laser Science and Engineering Physics and Astronomy-Nuclear and High Energy Physics
CiteScore
7.10
自引率
4.20%
发文量
401
审稿时长
21 weeks
期刊介绍: High Power Laser Science and Engineering (HPLaser) is an international, peer-reviewed open access journal which focuses on all aspects of high power laser science and engineering. HPLaser publishes research that seeks to uncover the underlying science and engineering in the fields of high energy density physics, high power lasers, advanced laser technology and applications and laser components. Topics covered include laser-plasma interaction, ultra-intense ultra-short pulse laser interaction with matter, attosecond physics, laser design, modelling and optimization, laser amplifiers, nonlinear optics, laser engineering, optical materials, optical devices, fiber lasers, diode-pumped solid state lasers and excimer lasers.
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