摘要
近十年来,飞秒激光技术不断发展,台式啁啾脉冲放大系统逐渐成为获得高
能量脉冲的重要技术手段,并且在许多领域中得到了广泛的应用。而在实际中更
需要小型化,全固化,性价比高,运转性能稳定的飞秒激光振荡器和放大器。
本文在理论和实验上对飞秒激光振荡器以及低重复频率啁啾脉冲放大系统
进行了深入的研究,主要包括以下几个内容:
一、阐述了飞秒激光器及啁啾脉冲放大系统的发展过程和发展趋势以及飞秒
脉冲激光在诸多方面的应用。
二、从掺钛蓝宝石的物理和化学性质出发,详细阐述了自启动飞秒激光器的
工作原理、自启动机制和小型化设计;着重分析了掺钛蓝宝石振荡器的
克尔透镜锁模原理;对窄带自启动元件的设计原理和结果进行了分析;
给出了设计可靠,运转稳定的自启动钛宝石飞秒激光振荡器的各项实验
参数和最终结果,并分析了该振荡器的稳定性。
三、以理论计算为基础,针对本系统对马丁内兹型和欧浮纳型两种展宽器进
行了优化选择,并确定最终参数。
四、设计并完成飞秒激光啁啾脉冲放大系统。采用再生放大和四通放大构成
的两级放大系统,实现了高能量的飞秒脉冲输出,可维持自启动并且运
行可靠。
In the past ten years, femtosecond laser technology has made great progress, and
the tabletop chirped pulse amplification (CPA) system has become an important
technique to acquire high-energy femtosecond pulses, which has opened up a wide
variety of applications in many fields. However, more compact,all-solid-state,
cost-effective and stable femtosecond oscillators and amplifiers are desired in those
applications.
This dissertation presents a deep study of the laser oscillator and the
low-repetition-rate chirped pulse amplifier system, both theoretically and
experimentally. The main contents of this thesis are as follows:
1. The development, progress in femosecond laser technology and the CPA
system as well as the applications of femosecond laser pulses in many
fields were included.
2. On the basis of the physical and chemical characteristics of Ti: Sapphire,
the principles, self-starting mechanism and compact design of the
femtosecond oscillator were explained in detail. The Kerr-lens
mode-locking mechanism was analyzed following a discussion of the
principles of various mode-locking mechanisms. The design and results
of narrow-band SESAM were discussed. The structure and output
parameters of a stable self-starting oscillator were shown. And the
stability of our oscillator was also analyzed.
3. Based on the theoretical calculation, an optimal choice between the
Martinez stretcher and the Offner stretcher was made for our special
system.
4. A low-repetition-rate CPA system was designed, which consisted of a
regenerative amplifier and a four-pass amplifier, which operated stably
and could self-start.
引文
[1] F. J. McClung and R. W. Hellwarth, “Giant optical pulsations from ruby”, J. Appl.
Phys., 1962, Vol. 33: 828-829
[2] 周炳琨、高以智等,激光原理,国防工业出版社,1984 年,232
[3] R. L. Fork, B. I. Greene, and C. V. Shank, “Generation of Optical Pulses Shorter
Than 0. 1 Picoseconds by Colliding Pulse Modelocking”, Applied Physics Letters,
1981, Vol. 38, No. 9: 671-672
[4] J. A. Voldmains, R.L.Fork, J.P.Gordon, “Generation of optical pulses as short as
27 femtoseconds directly from a laser balancing self-phase modulation,
group-velocity dispersion, saturable absorption, and saturable gain”, Opt.Lett.,
1985, Vol.10, No.3: 131-133
[5] R. L. Fork, C. H. Brito Cruz, P. C. Becker, et. al., “Compression of optical pulses
to six femtoseconds by using cubic phase compensation”, Opt. Lett., 1987, Vol.
12, No. 7: 483-485
[6] D. E. Spence, P. N. Kean and W. Sibbett, “60-fsec pulse generation from a
self-mode-locked Ti:sapphite laser”, Opt. Lett., 1991, Vol. 16, No. 1: 42-44
[7] C. P. Huang, M. T. Asaki, S. Bakus, et. al., “17-fs pulses from a self-mode-locked
Ti:sapphire laser”, Opt. Lett., 1992, Vol. 17, No. 18: 1289-1391
[8] M. T. Asaki, C. P. Huang, D. Garvey et. al., “Generation of 11-fs pulses from a
self-mode-locked Ti:sapphire laser”, Opt. Lett., 1993, Vol.18, No. 12: 977-979
[9] J. P. Zhou, G. Taft, C. P. Huang, et. al., “Pulse evolution in a board-bandwidth
Ti:sapphire laser”, Opt. Lett., 1994, Vol. 19, No. 15: 1149-1151
[10]A. Stingl, M. Lenzner, C. Spielmann, et. al., “Sub-10fs
mirror-disperision-controlled Ti:sapphire laser”, Opt. Lett., 1995, Vol. 20, No. 6:
602-604
[11]Lin Xu, C. Spielmann, F. Krausz et. al., “Ultrabroadband ring oscillator for
sub-10-fs pulse generation”, Opt.Lett., 1996, Vol. 21, No. 16: 1259-1261
[12]U. Morgner, F. X. Krtner, S. H. Cho, et. al., “Sub-two-cycle pulses from a
Kerr-lens mode-locked Ti:sapphire laser”, Opt. Lett., 1999, Vol. 24, No. 6:
411-413
[13]U. Keller, G. W. `tHooft, W. H. Knox, et. al., “Femtosecond pulses from a
continuously self-starting passively mode-locked Ti:sapphire laser”, Opt. Lett.,
Vol. 16, No. 13: 1022-1024
- 58 -
天津大学硕士学位论文 参考文献
[14]R. Mellish, P. M. W. French, J. P. Taylor, et. al., “Self-starting Femtosecond
Ti:sapphire laser with intracavity multiquantum well absorb”, Electron. Lett.,
1993, Vol. 29, No. 10: 894-896
[15]R. Fluck, I. D. Jung, G.. Zhang, et. al., “Broadband saturable absorbrt for 10-fs
pulse generation”, Opt. Lett., 1996, Vol. 21, No. 10: 743-745
[16] I. D. Jung, F. X. Krtner, N. Matuschek, et. al., “Self-starting 6.5-fspulses from a
Tisapphire laser”, Opt. Lett., 1997, Vol. 22, No. 13: 1009-1011
[17]D. H. Sutter, G. Steinmeyer, L. Gallmann et. al., “Semiconductor
saturable-absorbermirrorassisted Kerr-lensmode-locked Tisapphire laser
producing pulses inthe two-cycle regime”, Opt. Lett., 1999, Vol. 24, No. 9:
631-633
[18]Zhigang Zhang, T. Kenji, I. Taro, et. al., “Broadband semiconductor saturable
absorber mirror foe a self-starting mode-locked Cr:forsterite laser”, Opt. Lett.,
1998, Vol. 23, No. 18: 1465-1467
[19]王清月,戴建明,向望华等,“掺钛蓝宝石激光器实现飞秒级自聚焦锁模运
转”,光学学报,1993,Vol. 13,No. 1:93-94
[20]向望华,戴建明,邢歧荣等,“低功率泵浦 Ti:Al2O3 自锁模激光器”,光学
学报,1994,Vol. 14, No. 1:36-39
[21]王清月,戴建明,张伟力等,“15fs 低功率泵浦的自锁模掺钛蓝宝石激光器”,
中国激光,1997,Vol. A24,No. 12:1057-1060
[22]张志刚、柴路、赵江山等,“用于钛宝石激光器自启动锁模的半导体可饱和
吸收镜”,光学学报,2002,Vol. 22,No. 9:1151-1152
[23]柴路, 王清月, 赵江山等,“半导体可饱和吸收镜启动克尔透镜锁模机理的实
验研究”,物理学报,2001,Vol. 50,No. 7:1298-1301
[24]赵永华,刘玉璞,张影华,“自锁模掺钛蓝宝石激光器的泵浦研究”,光学学
报,1995,Vol. 15,No. 4:400-403
[25]赵永华,刘玉璞,张影华,“自锁模钛宝石激光器的谐振腔设计”,中国激光,
1995,Vol. 22,No. 10:725-729
[26]阮双深,侯洵,“自锁模钛宝石激光器的研究”,光子学报,1995,Vol. 24,
No. 5:393-395
[27]王水才,肖东,杨建军等,“多波长可调谐 Ti:Al2O3 飞秒激光器的研究”,
中国激光,1996,Vol. 23,No. 6:295-299
[28]唐建明,王水才,肖东等,“多波长单腔型自锁模飞秒钛宝石激光器的运转
特性”,光子学报,1996,Vol. 25,No. 6:486-491
[29]魏志义,余振新,李荣基等,“26fs 自锁模掺钛蓝宝石激光器”,中国激光,
1996,Vol. A23,No. 3:198-202
[30]林位株,赖天树,陈毓川等,“由自锁模钛宝石激光器产生 19fs 脉冲”,光学
- 59 -
天津大学硕士学位论文 参考文献
学报,1995,Vol. 15,No. 8:1151-1152
[31]廖睿,文锦辉,邓莉等,“自锁模钛宝石激光器突破 10 飞秒”,中山大学学
报(自然科学版),2001,Vol. 40,No. 1:123-124
[32]廖睿,文锦辉,刘智刚等,“KLM 钛宝石激光产生亚 10fs 光脉冲”,科学通
报,Vol. 47,No. 5:345-348
[33]D. Sraickland and G. Mourou, “Compression of amplified chirped optical pulses”,
Opt. Lett., 1985, Vol. 56, No. 3: 219-221
[34]A. Sullivan, H. Hamster, H. C. Kapteyn, et. al., “Mutiterawatt, 100-fs laser”, Opt.
Lett., 1991, Vol. 16, No. 18: 1406-1408
[35]C. P. J. Barty, C. L. Gordon III and B. E. Lmoff, “Multiterawatt 30-fs Ti:sapphire
laser system”, Opt. Lett., 1994, Vol. 19, No. 18: 1442-1444
[36]K. Yamakawa, M. Aoyama, S. Matsuoka, et. al., “Generation of 16-fs, 10Tw
pulses at a 10Hz repetition rate with efficient Ti:sapphire amplifiers”, Opt. Lett.,
Vol. 23, No. 7: 525-527
[37]K. Yamakawa, M. Aoyama, S. Matsuoka, et. al., “100 TW, sub-20 fs Ti:sapphire
laser system operating at a 10 Hz repetition rate”, Opt. Lett., 1998, Vo l. 23, No.
18: 1468-1470
[38]K. Yamakawa, M. Aoyama, S. Matsuoka, et. al., “Ultrahigh-peak and
high-average power chirped-pulse amplification of sub-20-fs pulses with
Ti:sapphire amplifiers”, IEEE J. Sel. Top. Quant. Electron., 1998, Vol. 4, No. 2:
385-394
[39]K. Yamakawa, C. P. J. Barty, “Ultrafast, ultrahigh-peak, and high-average power
Ti:sapphire laser system and its applications”, IEEE J. Sel. Top. Quant. Electron.,
2000, Vol. 6, No. 4: 658-674
[40]S. Backus, J. Peatross, C. P. Huang, et. al., “Ti:sapphire amplifier producing
millijioule-level, 21-fs pulses at 1 kHz”, Opt. Lett., 1995, Vol. 20, No. 19:
2000-2002
[41]S. Backus, C. G. Durfee III,G. Mourou, et. al., “0.2-TW laser system at 1 kHz”,
Opt. Lett., Vol. 22, No. 16, 1256-1258
[42]S. Sartania, Z. Cheng, M. Lenzner, et. al., “Generation of 0.1-TW 5-fs Optical
pulses at a 1-KHz repetition rate”, Opt. Lett., 1997, Vol. 22, No. 20: 1562-1564
[43]B. Schenkel, J. Biegert, U. Keller, et. al., “Generation of 3.8-fs pulses from
adaptive compression of a cascaded hollow fiber supercontinuum”, Opt. Lett.,
2003, Vol. 28, No. 20,: 1987-1989
[44]K. Yamane, Zhigang Zhang, K. Oka, et. al., “Optical pulse compression to 3.4fs
in the monocycle region by feedback phase compensation”, Opt. Lett., 2003, Vol.
28, No. 22: 2258-2260
[45]A. M. Kowalevicz, Jr., T. R. Schibli, et. al., “Ultralow-threshold Kerr-lens
- 60 -
天津大学硕士学位论文 参考文献
mode-locked Ti:Al2O3 laser”, Opt. Lett., 2003, Vol. 27, No. 22: 2037-2039
[46]A. Unterhuber, B. Povazay, B. Hermann, et. al., “Compact, low-cost Ti:Al2O3
laser for in vivo ultrahigh-resolution optical coherence tomography”, Opt. Lett.,
2003, Vol. 28, No. 11: 905-907
[47]H. A. Haus, “Mode-Locking of Lasers”, IEEE J. Quantum Electron., 2000, Vol. 6,
No. 6:1173-1185
[48]江剑平,《半导体激光器》,电子工业出版社,2000 年 2 月:190-224,287-294
[49]张志刚,飞秒脉冲技术讲义,第六章 半导体可饱和吸收镜
[50]Zhigang Zhang, Tadashi Nakagawa, Hideyuki Takada, et. al., “Low-loss
broadband semiconductor saturable absorber mirror for mode-locked Ti:sapphire
lasers”, Optics Communications, 2000, Vol. 176: 171-175
[51]Edmond B. Treacy, “Optical pulse compression with diffraction gratings”, IEEE J.
Quant. Electron., Vol. QE-5, No. 9: 454-458
[52]O. E. Martinez, “3000 times grating compressor with positive group velocity
dispersion: application to fiber compensation in the 1.3-1.6μm region”, IEEE J.
Quantum Electron., 1987, Vol. QE-23: 59-64
[53]Zhigang Zhang, Takashi Yagi, and Takashi Arisawa, “Ray-tracing model for
stretcher dispersion calculation”, Applied Optics, 1997, Vol. 36, No. 15: 3393-
3399
[54]张志刚,孙虹,“飞秒脉冲放大器中色散的计算和评价方法”,物理学报,2001,
Vol. 50,No. 6:1080-1085
[55]Jie Jiang, Zhigang Zhang, and Toshifumi Hasama, “Numerical Evaluation if
chirped-pulse-amplification systems with Offner triplet telescope stretcher”, J.
Opt. Soc. Am. B, 2001, Vol. 19: 678-687
[56]孙大睿、宋宴蓉、张志刚等,“用于飞秒脉冲放大器的马丁内兹展宽器和欧
浮纳展宽器性能比较”,物理学报,2003,Vol. 52,No. 4:2183-2187