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高相干度超连续谱产生的理论研究

李荧 侯静 王彦斌 靳爱军 姜宗福

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高相干度超连续谱产生的理论研究

李荧, 侯静, 王彦斌, 靳爱军, 姜宗福

Theoretical research on the generation of coherent supercontinuum

Li Ying, Hou Jing, Wang Yan-Bin, Jin Ai-Jun, Jiang Zong-Fu
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  • 超连续谱的相干性直接影响到很多光学测量器件的分辨率及准确性, 如何获得高相干度的超连续谱是当前非线性光学领域的研究热点之一. 本文首先分析超连续谱产生的机理, 认为调制不稳现象是降低超连续谱相干性的重要因素. 因此抑制调制不稳定性, 利用其他非线性效应(如自相位调制)是得到高相干性超连续谱的有效方法. 最后设计了一种全波段正常色散光子晶体光纤,仿真结果表明, 在脉宽400 fs无啁啾高斯脉冲抽运, 50 cm长该光子晶体光纤的条件下, 产生的超连续谱具有在相对功率大于-80 dB的全波段高度相干的特性.
    The degree of coherence of the supercontinuum(SC) directly determine the resolution and the precision in many optical apparatus, so how to achieve highly coherent SC is one of the focuses in nonlinear optics. It is shown that modulation instability (MI) is the key element that influences the coherence of SC. Therefore an effective way of achieving coherent SC is to avoid MI and to use other nonlinear effects such as self-phase modulation (SPM). We design a kind of photonic crystal fiber (PCF) which has an all-normal group velocity dispersion (GVD) profile. After numerical investigation on the generation of SC in the PCF we obtain the degrees of the SC in different lengths. Results indicate that for the generated SC by pumping 50 cm of this PCF with TFWHM=400 fs unchirped pulse Gaussian pulse can realize high coherence in the entire broadening area on condition that relative power is larger than -80 dB.
    • 基金项目: 国家自然科学基金(批准号: 61077076)和教育部新世纪优秀人才支持计划(批准号: NCET-08-0142)资助的课题.
    • Funds: Project supported by the National Natural Science Foundation of China (Grant No. 61077076), and the Program for New Century Excellent Talents in University (Grant No. NCET-08-0142).
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    Dudley J M, Coen S 2002 Opt. Lett. 27 13

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    Humbert G, Wadsworth W, Leon-Saval S, Knight J, Birks T, Russell P S J, Lederer M, Wiesauer D K K, Breuer E, Stifter D 2006 Opt. Express 14 1596

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    Hooper L E, Mosley P J, Muir A C, Wadsworth W J, Knight J C 2011 Opt. Express 19 4902

    [13]

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    [14]

    Agrawal G P 2007 Nonlinear Fiber Optics (4th ed)(San Diego:Claif) p120

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    Dudley J M, Coen S 2006 Rev. Mod. Phys. 78 4

    [16]

    Agrawal G P 2007 Nonlinear Fiber Optics (4th ed)(San Diego: Claif) p79

    [17]

    Kunimasa S, Masanori K 2005 Opt. Express 13 267

    [18]

    Oleg V S, Ronald H, John Z, Menyuk C R 2003 J. Lightwave Technol. 21 61

    [19]

    Wang Y B, Xiong C L, Hou J, Lu Q S, Peng Y, Chen Z L 2011 Acta Phys. Sin. 60 014201 (in Chinese) [王彦斌, 熊春乐, 侯静, 陆启生, 彭杨, 陈子伦 2011 物理学报 60 014201]

  • [1]

    Knight J C, Birks T A, Russell P S J, Atkin D M 1996 Opt. Lett. 21 1547

    [2]

    Yu Y Q, Ruan S C, Du C L, Yao J Q 2005 Acta Photonica Sinica 34 482

    [3]

    Hu M L, Wang C Y, Li Y F, Chai L, 2006 Opt.Express 14 1942

    [4]

    Fang P, Yang Z, Wang Q S, Zhao W, Zhang T, Li C 2010 Acta Photo. Sin 39 447 (in Chinese) [方平, 杨直, 王屹山, 赵卫, 张挺, 李成 2010 光子学报 39 447]

    [5]

    Povazay B, Bizheva K, Unterhuber A, Hermann B, Sattmann H, Fercher A F, Drexler W, Apolonski A, Wadsworth W J, Knight J C, Russell P S, Vetterlein M, Scherzer E 2002 Opt. Lett. 27 1800

    [6]

    Wang Y, Tomov I, Nelson J S, Chen Z, Lim H, Wise F 2005 J. Opt. Soc. Am. 22 1492

    [7]

    Dudley J M, Coen S 2004 Opt. Express 12 2423

    [8]

    Paulsen H N, Hilligse K M, Thogersen J, Keiding S R, Larsen J J 2003 Opt. Lett. 28 1123

    [9]

    Rinia H A, Bonn M, Müller M, Vartiainen E M 2007 Chem. Phys. Chem. 8 279

    [10]

    Dudley J M, Coen S 2002 Opt. Lett. 27 13

    [11]

    Humbert G, Wadsworth W, Leon-Saval S, Knight J, Birks T, Russell P S J, Lederer M, Wiesauer D K K, Breuer E, Stifter D 2006 Opt. Express 14 1596

    [12]

    Hooper L E, Mosley P J, Muir A C, Wadsworth W J, Knight J C 2011 Opt. Express 19 4902

    [13]

    Agrawal G P 2007 Nonlinear Fiber Optics (4th ed)(San Diego: Claif) p276

    [14]

    Agrawal G P 2007 Nonlinear Fiber Optics (4th ed)(San Diego:Claif) p120

    [15]

    Dudley J M, Coen S 2006 Rev. Mod. Phys. 78 4

    [16]

    Agrawal G P 2007 Nonlinear Fiber Optics (4th ed)(San Diego: Claif) p79

    [17]

    Kunimasa S, Masanori K 2005 Opt. Express 13 267

    [18]

    Oleg V S, Ronald H, John Z, Menyuk C R 2003 J. Lightwave Technol. 21 61

    [19]

    Wang Y B, Xiong C L, Hou J, Lu Q S, Peng Y, Chen Z L 2011 Acta Phys. Sin. 60 014201 (in Chinese) [王彦斌, 熊春乐, 侯静, 陆启生, 彭杨, 陈子伦 2011 物理学报 60 014201]

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  • PDF下载量:  1190
  • 被引次数: 0
出版历程
  • 收稿日期:  2011-07-04
  • 修回日期:  2012-05-10
  • 刊出日期:  2012-05-05

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