基于单块晶体级联二阶非线性的超短激光脉冲脉宽压缩

叶荣; 曾曙光; 张彬; 李恪宇

doi:10.3788/OPE.20132103.0583

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基于单块晶体级联二阶非线性的超短激光脉冲脉宽压缩

现代应用光学 | 更新时间：2020-08-12

- 基于单块晶体级联二阶非线性的超短激光脉冲脉宽压缩
- Pulse-duration Compression of Ultra-Short Laser Pulse by Cascaded Second-Order Nonlinearity
- 光学精密工程 2013年21卷第3期页码：583-589
- 作者机构：
  
  四川大学电子信息学院2. 三峡大学理学院3. 中国工程物理研究院
- 作者简介：
- 基金信息：
  
  中国工程物理研究院重点实验室基金项目()
- DOI：10.3788/OPE.20132103.0583
  中图分类号： O437.1;TN241
- 收稿日期：2012-09-24，
  
  修回日期：2012-11-15，
  
  网络出版日期：2013-03-20，
  
  纸质出版日期：2013-03-15
- 稿件说明：
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叶荣曾曙光张彬李恪宇. 基于单块晶体级联二阶非线性的超短激光脉冲脉宽压缩[J]. 光学精密工程, 2013,21(3): 583-589

YE Rong ZENG Shu-guang ZHANG Bin LI Ke-yu. Pulse-duration Compression of Ultra-Short Laser Pulse by Cascaded Second-Order Nonlinearity[J]. Editorial Office of Optics and Precision Engineering, 2013,21(3): 583-589
叶荣曾曙光张彬李恪宇. 基于单块晶体级联二阶非线性的超短激光脉冲脉宽压缩[J]. 光学精密工程, 2013,21(3): 583-589 DOI： 10.3788/OPE.20132103.0583.

YE Rong ZENG Shu-guang ZHANG Bin LI Ke-yu. Pulse-duration Compression of Ultra-Short Laser Pulse by Cascaded Second-Order Nonlinearity[J]. Editorial Office of Optics and Precision Engineering, 2013,21(3): 583-589 DOI： 10.3788/OPE.20132103.0583.

摘要

研究了基于单块偏硼酸钡（BBO）晶体的级联二阶非线性效应实现超短激光脉冲脉宽压缩的原理。采用分步傅里叶变换及四阶龙格库塔算法对描述I类飞秒脉冲倍频过程的耦合波方程组进行了数值计算，定量分析了基频光与倍频光位相失配量、非线性晶体长度、入射基频光峰值光强和初始脉宽等因素对脉宽压缩效果的影响，并对实验参数进行了优化。采用单块BBO晶体，对中心波长为800 nm、脉宽为140 fs的超短激光脉冲开展了脉宽压窄的实验研究，获得了两倍以上的脉宽压缩倍率。对不同基频光峰值强度和不同初始脉宽下的实验结果与理论模拟结果进行了比较与分析，结果表明，倍频过程中的位相失配量、初始基频光峰值光强、脉冲啁啾，以及初始基频光脉宽等因素对脉冲压缩效果的影响较大。若要获得较高的压缩倍率，需要综合考虑上述多种因素。

Abstract

The pulseduration compression principle of a ultrashort laser pulse by cascaded secondorder nonlinearity from a single barium borate (BBO) crystal was studied theoretically and experimentally. By using the splitstep Fourier transformation and fourthorder RungeKutta methods

the type I coupled wave equations describing for Second Harmonic Generation (SHG) process of femtosecond pulse were simulated and calculated. The influences of the phase mismatch between fundamental harmonic(FH) and second harmonic(SH) pulses

the length of nonlinear crystal

peak intensity and the initial pulseduration of the FH pulse on the pulseduration compression were analyzed quantitatively and the experimental parameters were also optimized. Furthermore

the experiment of the pulsewidth compression was performed for the ultrashort laser pulse with a center wavelength of 800 nm and a pulse width of 140 fs

and the pulsewidth compression of more than two times was achieved. Finally

the experimental and simulation results for different fundamental peak intensities and initial pulsewidths were compared. Obtained results show that some factors like the phase mismatch between fundamental harmonic(FH) and second harmonic(SH) pulses

peak intensity

pulse chirp and the initial pulseduration of the FH pulse have much influence on the pulse compression

so these facts mentioned above should be taken into consideration.

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references

DUBIETIS A, VALIULIS G, TAMOSAUSKAS G, et al.. Tamononlinear second-harmonic pulse compression with tilted pulses [J]. Opt. Lett., 1997, 22(14):1071-1073.[2]TRAPANI P D, CAIRONI D, VALIULIS G, et al.. Observation of temporal solitons in second-harmonic generation with tilted pulses[J]. Phys. Rev. Lett. 1998, 81(3):570-573.[3]BLATUSKA A, UDEM T, UIBERACKER M, et al.. Attosecond control of electronic processes by intense light fields [J]. Nature, 2003, 421(6):611-615.[4]MOSES J, WISE F W. Soliton compression in quadratic media: high energy few-cycle pulses with a frequency-doubling crystal [J]. Opt. Lett., 2006, 31(12):1881-1883. [5]DESALVO R, HAGAN D J, SHEIK-BAHAE M, et al.. Self-focusing and self-defocusing by cascaded second-order effects in KTP[J]. Opt. Lett., 1992, 17(1):28-30.[6]檀慧明，BANFI G P. BBO晶体中的级联二阶过程和三阶光学非线性效应[J]. 光学精密工程，1994, 2(6):7-17.TAN H M, BANFI G P. Cascaded second-order processes and third order optical nonlinear effects in BBO crystal[J]. Opt. Precision Eng., 1994, 2(6):7-17. (in Chinese)[7]LIU X, QIAN L J, WISE F. High-energy pulse compression by use of negative phase shifts produced by the cascade (2)：(2) nonlinearity [J]. Optics Letters, 1999, 24(23):1777-1779.[8]刘红军，陈国夫，赵卫, 等. 二次谐波产生的非线性相移的解析研究[J]. 光学学报，2003, 23(1):11-17.LIU H J, CHEN G F, ZHAO W, et al.. Analytical study of nonlinear phase shifts via second-harmonic generation [J]. Acta Optica Sinica, 2003, 23(1):11~17. (in Chinese)[9]王科，钱列加，朱鹤元. 基于差频过程级联非线性的孤子脉冲压缩[J]. 科学通报, 2008, 53(1):45-48.WANG K, QIAN L J, ZHU H Y. Soliton pulse compression based on cascade nonlinearity in DFG[J]. Chinese Science Bulletin, 2008, 53(1):45-48. (in Chinese)[10]MORTEN B, MOSES J, WISE F W. Scaling laws for soliton pulse compression by cascaded quadratic nonlinearities [J]. J. Opt. Soc. Am. B, 2007, 24(10):2572-2762.[11]MORTEN B, WISE F W. Type-I cascaded quadratic soliton compression in lithium niobate: compressing femtosecond pulses from high-power fiber lasers [J]. Phys. Rev. A, 2010, 81(5):053815-1-053815-14.[12]SIDICK E, KNOESEN A, DIENES A. Ultrashort-pulse second-harmonic generationⅠ.Transform-limited fundamental pulses[J]. J.Opt.Soc.Am.B, 1995, 12(9):1704-1712.[13]张志刚. 飞秒激光技术[M]. 北京：科学出版社, 2011: 7-9.ZHANG ZH G. Femtosecond Laser Technology[M]. Beijing: Science Press, 2011: 7-9. (in Chinese)[14]ASHIHARA S, NISHINA J, SHIMURA T, et al.. Soliton compression of femtosecond pulses in quadratic media [J]. J. Opt.Soc.Am.B, 2002, 19(10):2505-2510.[15]HACHE F, ZEBOULON A, GALLOT G, et al.. Cascaded second-order effects in the femtosecond regime in -barium borate: self-compression in a visible femtosecond optical parametric oscillator [J]. Opt.Lett., 1995, 20(14): 1556-1558.[16]黄小军，彭翰生，魏晓峰,等.100TW级超短超强钛宝石激光装置[J]. 强激光与粒子束, 2005,17(11):1685-1688.HUANG X J, PENG H SH, WEI X F, et al.. Ultra-short ultra-intense Ti sapphire laser facility with peak power of hundred-terawatt-level [J]. High Power Laser and Particle Beams, 2005, 17(11):1685-1688. (in Chinese)

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