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光参量过程中的逆转换问题

刘建辉 柳强 巩马理

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光参量过程中的逆转换问题

刘建辉, 柳强, 巩马理

Back conversion in optical parametric process

Liu Jian-Hui, Liu Qiang, Gong Ma-Li
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  • 逆转换是影响光参量变换转换效率、参量光光束质量以及参量光输出稳定性的关键因素,随光斑分布和时间变化,逆转换现象很难消除.文中分析了光参量变换过程中的逆转换问题,研究了影响逆转换的关键因素.分析得出,适当的晶体长度、优化的抽运光斑截面类型、合适的谐振腔参数(对于振荡器)有利于降低逆转换,提高参量转换效率,改善参量光光束质量.根据理论分析结果,设计了脉冲砷酸钛氧钾(KTA)光参量振荡器,实验获得了270 mJ信号光和150 mJ闲频光输出,有效地抑制了逆转换的影响,参量转化效率达到了43%.
    Back conversion is the key factor that affects the conversion efficiency, the beam quality of the parametric waves, and the stability of the output in the optical parametric process. For the reason of the variation of the back conversion with the distribution in the cross-section and with time, the back conversion cannot be eliminated thoroughly. We analyzed the problem of the back conversion in the optical parametric process, and established the models of the parametric process for the continuous waves and the pulsed waves, which help us study the key factors affecting the back conversion. According to the conclusion of our analysis, the proper length of the nonlinear crystals, the optimal distribution of the energy of the pump beam, and the proper parameters of the resonant cavity ( for optical parametric oscillators ) could reduce the back conversion and help to increase the conversion efficiency. According to the theoretical results, we designed an X-cut KTA (Potassium Titanyl Arsenate) optical parametric oscillator, and obtained the signal light with the energy of 270 mJ and the idler light with the energy of 150 mJ, which decreased the back conversion, and the efficiency reached 43%.
    [1]

    Yao J Q, Xu D G 2007 All Solid State Laser and Nonlinear Optical Frequency Conversion Technology (Beijing:Science Press) p652 (in Chinese) [姚建铨、 徐德刚 2007 全固态激光及非线性光学频率变换技术(北京: 科学出版社) 第652页]

    [2]

    Li G 2005 The Conversion and Scaling for Lasers Frequency: The Practical Nonlinear Optics Technology (Beijing:Science Press) p205 (in Chinese) ]李 港 2005 激光频率的变换与扩展——使用非线性光绪技术(北京:科学出版社, 2005) 第205页]

    [3]

    Cui Q J, Xu Y T, Zong N, Lu Y F, Cheng X K, Peng Q J, Bo Y, Cui D F, Xu Y Z 2009 Acta Phys. Sin. 58 1751 (in Chinese) [崔前进、 徐一汀、 宗 楠、 鲁远甫、 程贤坤、 彭钦军、 薄 勇、 崔大复、 许祖彦 2009 物理学报 58 1715 ]

    [4]

    Takada A, Imajuku W, Morioka T, Hagimoto K 2005 Optical Amplifiers and Their Applications Budapest, Hungany, August 7, 2005 PWC1

    [5]

    Ding X, Sheng Q, Chen N, Yu X, Wang R, Zhang H, Wen W, Wang P, Yao J 2009 Chin. Phys. B 18 4314

    [6]

    Li H, Geng A, Bo Y, Wu L, Cui D, Xu Z 2005 Chin. Phys. 14 2026

    [7]

    Liu H J, Chen G F, Zhao W, Wang Y S 2004 Acta Phys. Sin. 53 105 (in Chinese) [刘红军、 陈国夫、 赵 卫、 王屹山 2004 物理学报 53 105]

    [8]

    Haus J W, Pandey A, Powers P E 2007 Opt. Commun. 269 378

    [9]

    Berrou A, Godard A, Lefebvre M 2007 Baltimore, Maryland, May 8, 2007 PJWA28

    [10]

    Lee K S, Gross M C, Ralph S E, Buck J A 2003 Lasers and Electro-Optics Society 1 362

    [11]

    Lowenthal D D 1998 J. Quantum Electron. 34 1356

    [12]

    Arisholm G, Paschotta R, Südmeyer T 2004 J. Opt. Soc. Am. B 21 578

    [13]

    McEwan K J, Terry J A C 2000 Opt. Commun. 182 423

    [14]

    Oron M B, Eger D, Katz M, Bruner A, Englander A, Tsuk Y, Raphael Lavi 2000 Proc. SPIE 3936 186

    [15]

    Lowenthal D D 1999 Proc. SPIE 3613 155

    [16]

    McEwan K J 2003 Proc. SPIE 4972 1

    [17]

    Anstett G, Nittmann M, Wallenstein R 2004 Appl. Phys. B 79 305

    [18]

    Alford W J, Smith A V 1997 U. S. Patent 6147793

    [19]

    Liang X, Bartschke J, Peltz M 2007 Appl. Phys. B 87 649

    [20]

    Urschel R, Borsutzky A, Wallenstein R 2000 Appl. Phys. B 70 203

  • [1]

    Yao J Q, Xu D G 2007 All Solid State Laser and Nonlinear Optical Frequency Conversion Technology (Beijing:Science Press) p652 (in Chinese) [姚建铨、 徐德刚 2007 全固态激光及非线性光学频率变换技术(北京: 科学出版社) 第652页]

    [2]

    Li G 2005 The Conversion and Scaling for Lasers Frequency: The Practical Nonlinear Optics Technology (Beijing:Science Press) p205 (in Chinese) ]李 港 2005 激光频率的变换与扩展——使用非线性光绪技术(北京:科学出版社, 2005) 第205页]

    [3]

    Cui Q J, Xu Y T, Zong N, Lu Y F, Cheng X K, Peng Q J, Bo Y, Cui D F, Xu Y Z 2009 Acta Phys. Sin. 58 1751 (in Chinese) [崔前进、 徐一汀、 宗 楠、 鲁远甫、 程贤坤、 彭钦军、 薄 勇、 崔大复、 许祖彦 2009 物理学报 58 1715 ]

    [4]

    Takada A, Imajuku W, Morioka T, Hagimoto K 2005 Optical Amplifiers and Their Applications Budapest, Hungany, August 7, 2005 PWC1

    [5]

    Ding X, Sheng Q, Chen N, Yu X, Wang R, Zhang H, Wen W, Wang P, Yao J 2009 Chin. Phys. B 18 4314

    [6]

    Li H, Geng A, Bo Y, Wu L, Cui D, Xu Z 2005 Chin. Phys. 14 2026

    [7]

    Liu H J, Chen G F, Zhao W, Wang Y S 2004 Acta Phys. Sin. 53 105 (in Chinese) [刘红军、 陈国夫、 赵 卫、 王屹山 2004 物理学报 53 105]

    [8]

    Haus J W, Pandey A, Powers P E 2007 Opt. Commun. 269 378

    [9]

    Berrou A, Godard A, Lefebvre M 2007 Baltimore, Maryland, May 8, 2007 PJWA28

    [10]

    Lee K S, Gross M C, Ralph S E, Buck J A 2003 Lasers and Electro-Optics Society 1 362

    [11]

    Lowenthal D D 1998 J. Quantum Electron. 34 1356

    [12]

    Arisholm G, Paschotta R, Südmeyer T 2004 J. Opt. Soc. Am. B 21 578

    [13]

    McEwan K J, Terry J A C 2000 Opt. Commun. 182 423

    [14]

    Oron M B, Eger D, Katz M, Bruner A, Englander A, Tsuk Y, Raphael Lavi 2000 Proc. SPIE 3936 186

    [15]

    Lowenthal D D 1999 Proc. SPIE 3613 155

    [16]

    McEwan K J 2003 Proc. SPIE 4972 1

    [17]

    Anstett G, Nittmann M, Wallenstein R 2004 Appl. Phys. B 79 305

    [18]

    Alford W J, Smith A V 1997 U. S. Patent 6147793

    [19]

    Liang X, Bartschke J, Peltz M 2007 Appl. Phys. B 87 649

    [20]

    Urschel R, Borsutzky A, Wallenstein R 2000 Appl. Phys. B 70 203

计量
  • 文章访问数:  9478
  • PDF下载量:  971
  • 被引次数: 0
出版历程
  • 收稿日期:  2010-03-30
  • 修回日期:  2010-04-28
  • 刊出日期:  2011-01-05

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