基于自动扫描光栅单色仪的光学腔色散测量
|
摘要
通过引入自动扫描光栅单色仪,实现了快速色散测量,极大程度地降低了载波包络偏频慢漂对测量准确度的影响,降低了测量复杂度,提高了色散测量精度。以815nm钛宝石锁模激光器作为光源,以自建的八镜光学腔作为参考,对厚度约为6.35mm的熔融石英窗片的群延迟色散(GDD)进行了测量,结果与Sellmeier方程给出的理论值相差1.2fs2,不准确度仅为0.5%。测得八镜光学腔在常温常压状态下的GDD为28.8fs2,比理论值低约12fs2,原因可归结为8片腔镜镀膜的不均匀性。
With the introduction of an automatically scanning grating monochromator,the rapid measurement of dispersion is realized,which greatly reduces the influence of the slow drift of carrier envelope offset frequency on the measurement accuracy,reduces the experimental complexity,and improves the dispersion measurement accuracy.In the experiment,the 815 nm Tisapphire mode-locked laser is used as the light source and a home-made eight-mirror ring cavity is taken as a reference,the group delay dispersion(GDD)of a piece of 6.35 mm-thick fused silica plate is measured and the difference between the results and that from the theoretical value derived from the equation of Sellmeier is 1.2 fs2 with an only uncertainty of 0.5%.The GDD of the eight-mirror ring cavity under normal temperature and pressure condition is 28.8 fs2,smaller by 12 fs2 than the theoretical value,which is attributed to the coating inhomogeneity of the eight cavity mirrors.
With the introduction of an automatically scanning grating monochromator,the rapid measurement of dispersion is realized,which greatly reduces the influence of the slow drift of carrier envelope offset frequency on the measurement accuracy,reduces the experimental complexity,and improves the dispersion measurement accuracy.In the experiment,the 815 nm Tisapphire mode-locked laser is used as the light source and a home-made eight-mirror ring cavity is taken as a reference,the group delay dispersion(GDD)of a piece of 6.35 mm-thick fused silica plate is measured and the difference between the results and that from the theoretical value derived from the equation of Sellmeier is 1.2 fs2 with an only uncertainty of 0.5%.The GDD of the eight-mirror ring cavity under normal temperature and pressure condition is 28.8 fs2,smaller by 12 fs2 than the theoretical value,which is attributed to the coating inhomogeneity of the eight cavity mirrors.
引文
[1]Li H J,Zhang M,Li F Q.High-power singlefrequency 461 nm generation from an intracavity doubling of Tisapphire laser with LBO[J].Chinese Journal of Lasers,2016,43(3):0302003.李慧娟,张淼,李凤琴.高功率单频LBO腔内倍频461nm钛宝石激光器[J].中国激光,2016,43(3):0302003.
[2]Tsuchida H.Frequency doubling of tunable Ti…sapphire laser with KNbO3in external cavity[J].Japanese Journal of Applied Physics,1994,33(11):6190-6194.
[3]Chernyshov A K,Chernyshova E A.Efficient second harmonic generation of a diode laser using ring cavity with a KNbO3 crystal[J].Physics of Wave Phenomena,2011,19(4):244-250.
[4]Bai J D,Wang J Y,He J,et al.Electronic sideband locking of a broadly tunable 318.6 nm ultraviolet laser to an ultra-stable optical cavity[J].Journal of Optics,2017,19(4):045501.
[5]Notcutt M,Ma L S,Ludlow A D,et al.Contribution of thermal noise to frequency stability of rigid optical cavity via hertz-linewidth lasers[J].Physical Review A,2006,73(3):031804.
[6]Chen Y L,Zhang J,Li Y M,et al.Reduction of intensity noise of single-frequency NdYVO4laser using mode cleaner[J].Chinese Journal of Lasers,2001,28(3):197-200.陈艳丽,张靖,李永民,等.利用模清洁器降低单频NdYVO4激光器的强度噪声[J].中国激光,2001,28(3):197-200.
[7]Slusher R E,Hollberg L W,Yurke B,et al.Observation of squeezed states generated by fourwave mixing in an optical cavity[J].Physical Review Letters,1985,55(22):2409-2412.
[8]Mundt A B,Kreuter A,Becher C,et al.Coupling a single atomic quantum bit to a high finesse optical cavity[J].Physical Review Letters,2002,89(10):103001.
[9]Jones R J,Ye J.Femtosecond pulse amplification by coherent addition in a passive opticalcavity[J].Optics Letters,2002,27(20):1848-1850.
[10]Jones R J,Ye J.High-repetition-rate coherent femtosecond pulse amplification with an external passive opticalcavity[J].Optics Letters,2004,29(23):2812-2814.
[11]Jones R J,Moll K,Thorpe M,et al.Phase-coherent frequency combs in the vacuum ultraviolet via highharmonic generation inside a femtosecond enhancement cavity[J].Physical Review Letters,2005,94(19):193201.
[12]Gohle C,Udem T,Herrmann M,et al.A frequency comb in the extreme ultraviolet[J].Nature,2005,436(7048):234-237.
[13]Han H N,Zhang J W,Zhang Q,et al.Theoretical and experimental study on femtosecond enhancement resonator[J].Acta Physica Sinica,2012,61(16):164206.韩海年,张金伟,张青,等.飞秒激光共振增强腔的理论与实验研究[J].物理学报,2012,61(16):164206.
[14]Pupeza I,Gu X,Fill E,et al.Highly sensitive dispersion measurement of a high-power passive optical resonator using spatial-spectral interferometry[J].Optics Express,2010,18(25):26184-26195.
[15]Rutkowski L,Johansson A C,Zhao G,et al.Sensitive and broadband measurement of dispersion in a cavity using a Fourier transform spectrometer with kHz resolution[J].Optics Express,2017,25(18):21711-21718.
[16]Hammond T J,Mills A K,Jones D J.Simple method to determine dispersion of high-finesse optical cavities[J].Optics Express,2009,17(11):8998-9005.
[17]Xiang X,Wang S F,Hou F Y,et al.A broadband passive cavity for analyzing and filtering the noise of a femtosecond laser[J].Acta Physica Sinica,2016,65(13):134203.项晓,王少锋,侯飞雁,等.利用共振无源腔分析和抑制飞秒脉冲激光噪声的理论和实验研究[J].物理学报,2016,65(13):134203.
[18]Sellmeier W.Zur Erklrung der abnormen farbenfolge im spectrum einiger substanzen(in German)[J].Annalen der Physik und Chemie,1871,219(6):272-282.
[19]Malitson I H.Interspecimen comparison of the refractive index of fused silica[J].Journal of the Optical Society of America,1965,55(10):1205-1208.
[2]Tsuchida H.Frequency doubling of tunable Ti…sapphire laser with KNbO3in external cavity[J].Japanese Journal of Applied Physics,1994,33(11):6190-6194.
[3]Chernyshov A K,Chernyshova E A.Efficient second harmonic generation of a diode laser using ring cavity with a KNbO3 crystal[J].Physics of Wave Phenomena,2011,19(4):244-250.
[4]Bai J D,Wang J Y,He J,et al.Electronic sideband locking of a broadly tunable 318.6 nm ultraviolet laser to an ultra-stable optical cavity[J].Journal of Optics,2017,19(4):045501.
[5]Notcutt M,Ma L S,Ludlow A D,et al.Contribution of thermal noise to frequency stability of rigid optical cavity via hertz-linewidth lasers[J].Physical Review A,2006,73(3):031804.
[6]Chen Y L,Zhang J,Li Y M,et al.Reduction of intensity noise of single-frequency NdYVO4laser using mode cleaner[J].Chinese Journal of Lasers,2001,28(3):197-200.陈艳丽,张靖,李永民,等.利用模清洁器降低单频NdYVO4激光器的强度噪声[J].中国激光,2001,28(3):197-200.
[7]Slusher R E,Hollberg L W,Yurke B,et al.Observation of squeezed states generated by fourwave mixing in an optical cavity[J].Physical Review Letters,1985,55(22):2409-2412.
[8]Mundt A B,Kreuter A,Becher C,et al.Coupling a single atomic quantum bit to a high finesse optical cavity[J].Physical Review Letters,2002,89(10):103001.
[9]Jones R J,Ye J.Femtosecond pulse amplification by coherent addition in a passive opticalcavity[J].Optics Letters,2002,27(20):1848-1850.
[10]Jones R J,Ye J.High-repetition-rate coherent femtosecond pulse amplification with an external passive opticalcavity[J].Optics Letters,2004,29(23):2812-2814.
[11]Jones R J,Moll K,Thorpe M,et al.Phase-coherent frequency combs in the vacuum ultraviolet via highharmonic generation inside a femtosecond enhancement cavity[J].Physical Review Letters,2005,94(19):193201.
[12]Gohle C,Udem T,Herrmann M,et al.A frequency comb in the extreme ultraviolet[J].Nature,2005,436(7048):234-237.
[13]Han H N,Zhang J W,Zhang Q,et al.Theoretical and experimental study on femtosecond enhancement resonator[J].Acta Physica Sinica,2012,61(16):164206.韩海年,张金伟,张青,等.飞秒激光共振增强腔的理论与实验研究[J].物理学报,2012,61(16):164206.
[14]Pupeza I,Gu X,Fill E,et al.Highly sensitive dispersion measurement of a high-power passive optical resonator using spatial-spectral interferometry[J].Optics Express,2010,18(25):26184-26195.
[15]Rutkowski L,Johansson A C,Zhao G,et al.Sensitive and broadband measurement of dispersion in a cavity using a Fourier transform spectrometer with kHz resolution[J].Optics Express,2017,25(18):21711-21718.
[16]Hammond T J,Mills A K,Jones D J.Simple method to determine dispersion of high-finesse optical cavities[J].Optics Express,2009,17(11):8998-9005.
[17]Xiang X,Wang S F,Hou F Y,et al.A broadband passive cavity for analyzing and filtering the noise of a femtosecond laser[J].Acta Physica Sinica,2016,65(13):134203.项晓,王少锋,侯飞雁,等.利用共振无源腔分析和抑制飞秒脉冲激光噪声的理论和实验研究[J].物理学报,2016,65(13):134203.
[18]Sellmeier W.Zur Erklrung der abnormen farbenfolge im spectrum einiger substanzen(in German)[J].Annalen der Physik und Chemie,1871,219(6):272-282.
[19]Malitson I H.Interspecimen comparison of the refractive index of fused silica[J].Journal of the Optical Society of America,1965,55(10):1205-1208.