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1. 发明授权

US08509270B2 Yb: and Nd: mode-locked oscillators and fiber systems incorporated in solid-state short pulse laser systems 有权
公开(公告)号：US08509270B2
公开(公告)日：2013-08-13
申请号：US13332950
申请日：2011-12-21
申请人： Donald J. Harter , Gyu C. Cho , Zhenlin Liu , Martin E. Fermann , Xinhu Gu , Salvatore F. Nati , Lawrence Shah , Ingmar Hartl , Mark Bendett
发明人： Donald J. Harter , Gyu C. Cho , Zhenlin Liu , Martin E. Fermann , Xinhu Gu , Salvatore F. Nati , Lawrence Shah , Ingmar Hartl , Mark Bendett
IPC分类号： H01S3/10 , H01S3/30
CPC分类号： H01S3/1106 , H01S3/005 , H01S3/0057 , H01S3/0064 , H01S3/0085 , H01S3/0092 , H01S3/06712 , H01S3/06725 , H01S3/0675 , H01S3/06754 , H01S3/06758 , H01S3/094003 , H01S3/094019 , H01S3/094042 , H01S3/094076 , H01S3/09415 , H01S3/1086 , H01S3/109 , H01S3/11 , H01S3/1118 , H01S3/1305 , H01S3/1611 , H01S3/1618 , H01S3/1643 , H01S3/235
摘要： The invention describes classes of robust fiber laser systems usable as pulse sources for Nd: or Yb: based regenerative amplifiers intended for industrial settings. The invention modifies adapts and incorporates several recent advances in FCPA systems to use as the input source for this new class of regenerative amplifier.

2. 发明申请

US20100225897A1 OPTICAL SCANNING AND IMAGING SYSTEMS BASED ON DUAL PULSED LASER SYSTEMS 有权
标题翻译：基于双脉冲激光系统的光学扫描和成像系统
公开(公告)号：US20100225897A1
公开(公告)日：2010-09-09
申请号：US12399435
申请日：2009-03-06
申请人： Martin E. Fermann , Ingmar Hartl
发明人： Martin E. Fermann , Ingmar Hartl
IPC分类号： G01J3/00 , H01S3/10 , G01B9/02
CPC分类号： H01S3/10046 , G01B9/02001 , G01N21/31 , G01N2021/317 , G02B6/02304 , H01S3/0675 , H01S3/06754 , H01S3/08054 , H01S3/1067 , H01S3/1068 , H01S3/11 , H01S3/1115 , H01S3/13 , H01S3/1307 , H01S3/1392 , H01S3/1394 , H01S3/2383
摘要： The invention relates to scanning pulsed laser systems for optical imaging. Coherent dual scanning laser systems (CDSL) are disclosed and some applications thereof. Various alternatives for implementation are illustrated, including highly integrated configurations. In at least one embodiment a coherent dual scanning laser system (CDSL) includes two passively modelocked fiber oscillators. The oscillators are configured to operate at slightly different repetition rates, such that a difference δfr in repetition rates is small compared to the values fr1 and fr2 of the repetition rates of the oscillators. The CDSL system also includes a non-linear frequency conversion section optically connected to each oscillator. The section includes a non-linear optical element generating a frequency converted spectral output having a spectral bandwidth and a frequency comb comprising harmonics of the oscillator repetition rates. A CDSL may be arranged in an imaging system for one or more of optical imaging, microscopy, micro-spectroscopy and/or THz imaging.
摘要翻译：本发明涉及用于光学成像的扫描脉冲激光系统。公开了相干双扫描激光系统（CDSL）及其一些应用。示出了用于实现的各种替代方案，包括高度集成的配置。在至少一个实施例中，相干双扫描激光系统（CDSL）包括两个被动锁模光纤振荡器。振荡器被配置为以稍微不同的重复率操作，使得与振荡器的重复率的值fr1和fr2相比，重复率的差δfr小。 CDSL系统还包括与每个振荡器光学连接的非线性频率转换部分。该部分包括产生具有频谱带宽的频率转换频谱输出和包括振荡器重复频率的谐波的频率梳的非线性光学元件。可以在成像系统中布置CDSL以用于光学成像，显微镜，微光谱和/或THz成像中的一种或多种。

3. 发明授权

US07394591B2 Utilization of Yb: and Nd: mode-locked oscillators in solid-state short pulse laser systems 有权
标题翻译：在固态短脉冲激光系统中利用Yb：和Nd：锁模振荡器
公开(公告)号：US07394591B2
公开(公告)日：2008-07-01
申请号：US10960923
申请日：2004-10-12
申请人： Donald J. Harter , Gyu C. Cho , Martin E. Fermann , Ingmar Hartl
发明人： Donald J. Harter , Gyu C. Cho , Martin E. Fermann , Ingmar Hartl
IPC分类号： H01S4/00 , H01S3/00
CPC分类号： H01S5/5045 , H01S3/005 , H01S3/0057 , H01S3/0078 , H01S3/0085 , H01S3/067 , H01S3/0675 , H01S3/06754 , H01S3/094042 , H01S3/10023 , H01S3/109 , H01S3/1616 , H01S3/1618 , H01S3/1643 , H01S3/235
摘要： An optimized Yb: doped fiber mode-locked oscillator and fiber amplifier system for seeding Nd: or Yb: doped regenerative amplifiers. The pulses are generated in the Yb: or Nd: doped fiber mode-locked oscillator, and may undergo spectral narrowing or broadening, wavelength converting, temporal pulse compression or stretching, pulse attenuation and/or lowering the repetition rate of the pulse train. The conditioned pulses are subsequently coupled into an Yb: or Nd: fiber amplifier. The amplified pulses are stretched before amplification in the regenerative amplifier that is based on an Nd: or Yb: doped solid-state laser material, and then recompressed for output.
摘要翻译：一种优化的Yb：掺杂光纤锁模振荡器和光纤放大器系统，用于种子Nd：或Yb：掺杂再生放大器。脉冲在Yb或Nd：掺杂光纤锁模振荡器中产生，并可能经历频谱变窄或变宽，波长转换，时间脉冲压缩或拉伸，脉冲衰减和/或降低脉冲序列的重复率。调节脉冲随后耦合到Yb或Nd：光纤放大器中。在基于Nd：或Yb：掺杂固态激光材料的再生放大器中，放大后的放大脉冲被拉伸，然后再压缩输出。

4. 发明授权

US07257302B2 In-line, high energy fiber chirped pulse amplification system 有权
标题翻译：在线高能纤维啁啾脉冲放大系统
公开(公告)号：US07257302B2
公开(公告)日：2007-08-14
申请号：US10608233
申请日：2003-06-30
申请人： Martin E. Fermann , Gennady Imeshev , Ingmar Hartl , Donald J. Harter
发明人： Martin E. Fermann , Gennady Imeshev , Ingmar Hartl , Donald J. Harter
IPC分类号： G02B6/02
CPC分类号： H01S3/06754 , H01S3/005 , H01S3/0057 , H01S3/0085 , H01S3/0092 , H01S3/06712 , H01S3/06725 , H01S3/094007 , H01S3/10015
摘要： By writing non-linear chirp into fiber Bragg gratings, greater control over dispersion compensation in CPA systems is obtained, such that, for example, the dispersion profile of the fiber Bragg grating and a bulk compressor may be matched. An iterative method of writing the fiber grating can reduce the group delay ripple to very low levels; and adaptive control of the fiber grating dispersion profile can further reduce these levels, while in addition offering greater acceptable yield in the manufacture of such gratings. Fiber Bragg gratings may be designed so as to provide customized pulse shapes optimized for various end uses, such as micromachining, for example, and may also be used to counteract gain-narrowing in a downstream amplifier.
摘要翻译：通过将非线性啁啾写入光纤布拉格光栅，可以获得对CPA系统中的色散补偿的更大控制，使得例如光纤布拉格光栅和大容量压缩机的色散曲线可以匹配。编写光纤光栅的迭代方法可以将组延迟纹波降低到非常低的水平; 并且光纤光栅色散轮廓的自适应控制可以进一步降低这些水平，同时在制造这种光栅时提供更大的可接受的产量。可以设计光纤布拉格光栅，以便提供针对各种最终用途（例如微加工）优化的定制脉冲形状，并且还可以用于抵消下游放大器中的增益变窄。

5. 发明授权

US08855151B2 YB: and ND: mode-locked oscilltors and fiber systems incorporated in solid-state short pulse laser systems 有权
标题翻译： YB：和ND：固态短脉冲激光系统中嵌入的锁模振荡器和光纤系统
公开(公告)号：US08855151B2
公开(公告)日：2014-10-07
申请号：US13935679
申请日：2013-07-05
申请人： Donald J. Harter , Gyu C. Cho , Zhenlin Liu , Martin E. Fermann , Xinhua Gu , Salvatore F. Nati , Lawrence Shah , Ingmar Hartl , Mark Bendett
发明人： Donald J. Harter , Gyu C. Cho , Zhenlin Liu , Martin E. Fermann , Xinhua Gu , Salvatore F. Nati , Lawrence Shah , Ingmar Hartl , Mark Bendett
IPC分类号： H01S3/30 , H01S3/10 , H01S3/00 , H01S3/067 , H01S3/11 , H01S3/23 , H01S3/109 , H01S3/094 , H01S3/108 , H01S3/16
CPC分类号： H01S3/1106 , H01S3/005 , H01S3/0057 , H01S3/0064 , H01S3/0085 , H01S3/0092 , H01S3/06712 , H01S3/06725 , H01S3/0675 , H01S3/06754 , H01S3/06758 , H01S3/094003 , H01S3/094019 , H01S3/094042 , H01S3/094076 , H01S3/09415 , H01S3/1086 , H01S3/109 , H01S3/11 , H01S3/1118 , H01S3/1305 , H01S3/1611 , H01S3/1618 , H01S3/1643 , H01S3/235
摘要： The invention describes classes of robust fiber laser systems usable as pulse sources for Nd: or Yb: based regenerative amplifiers intended for industrial settings. The invention modifies adapts and incorporates several recent advances in FCPA systems to use as the input source for this new class of regenerative amplifier.
摘要翻译：本发明描述了可用作用于工业设置的用于基于Nd：或Yb：的再生放大器的脉冲源的鲁棒光纤激光器系统。本发明修改了适应性，并结合了FCPA系统中的几个最新进展，用作这种新型再生放大器的输入源。

6. 发明授权

US08792525B2 Compact optical frequency comb systems 有权
标题翻译：紧凑型光频梳系统
公开(公告)号：US08792525B2
公开(公告)日：2014-07-29
申请号：US13481211
申请日：2012-05-25
申请人： Martin E. Fermann , Thomas R. Schibli , Ingmar Hartl
发明人： Martin E. Fermann , Thomas R. Schibli , Ingmar Hartl
IPC分类号： H01S3/10
CPC分类号： H01S3/1115 , H01S3/0092 , H01S3/06712 , H01S3/06725 , H01S3/08059 , H01S3/10046 , H01S3/105 , H01S3/1053 , H01S3/1118 , H01S3/1616 , H01S3/176
摘要： Compact optical frequency sources are described. The comb source may include an intra-cavity optical element having a multi-material integrated structure with an electrically controllable active region. The active region may comprise a thin film. By way of example, the thin film and an insulating dielectric material disposed between two electrodes can provide for rapid loss modulation. In some embodiments the thin film may comprise graphene. In various embodiments of a frequency comb laser, rapid modulation of the CEO frequency can be implemented via electric modulation of the transmission or reflection loss of an additional optical element, which can be the saturable absorber itself. In another embodiment, the thin film can also be used as a saturable absorber in order to facilitate passive modelocking. In some implementations the optical element may be formed on a cleaved or polished end of an optical fiber.
摘要翻译：描述了紧凑的光频源。梳状光源可以包括具有电子可控有源区域的多材料集成结构的腔内光学元件。有源区可以包括薄膜。作为示例，设置在两个电极之间的薄膜和绝缘介电材料可以提供快速损耗调制。在一些实施例中，薄膜可以包括石墨烯。在频率梳状激光器的各种实施例中，CEO频率的快速调制可以通过附加光学元件的传输或反射损耗的电调制来实现，其可以是可饱和吸收体本身。在另一个实施例中，薄膜也可以用作饱和吸收体，以便于被动锁模。在一些实施方案中，光学元件可以形成在光纤的切割或抛光端上。

7. 发明授权

US08442373B2 Laser based frequency standards and their applications 有权
公开(公告)号：US08442373B2
公开(公告)日：2013-05-14
申请号：US13446770
申请日：2012-04-13
申请人： Ingmar Hartl , Martin E. Fermann
发明人： Ingmar Hartl , Martin E. Fermann
IPC分类号： G02B6/00 , G02B6/12 , G02B6/26 , G02B6/42 , H01S3/098
CPC分类号： H01S3/1112 , G02F1/3558 , G02F1/365 , G02F2001/3528 , G02F2203/56 , H01S3/067 , H01S3/06716 , H01S3/10007 , H01S2301/02
摘要： Frequency standards based on mode-locked fiber lasers, fiber amplifiers and fiber-based ultra-broad bandwidth light sources, and applications of the same.

8. 发明授权

US07508853B2 Yb: and Nd: mode-locked oscillators and fiber systems incorporated in solid-state short pulse laser systems 有权
标题翻译： Yb：和Nd：锁模振荡器和光纤系统并入固态短脉冲激光系统
公开(公告)号：US07508853B2
公开(公告)日：2009-03-24
申请号：US11005218
申请日：2004-12-07
申请人： Donald J. Harter , Gyu C. Cho , Zhenlin Liu , Martin E. Fermann , Xinhua Gu , Salvatore F. Nati , Lawrence Shah , Ingmar Hartl , Mark Bendett
发明人： Donald J. Harter , Gyu C. Cho , Zhenlin Liu , Martin E. Fermann , Xinhua Gu , Salvatore F. Nati , Lawrence Shah , Ingmar Hartl , Mark Bendett
IPC分类号： H01S3/30 , H01S3/13
CPC分类号： H01S3/1106 , H01S3/005 , H01S3/0057 , H01S3/0064 , H01S3/0085 , H01S3/0092 , H01S3/06712 , H01S3/06725 , H01S3/0675 , H01S3/06754 , H01S3/06758 , H01S3/094003 , H01S3/094019 , H01S3/094042 , H01S3/094076 , H01S3/09415 , H01S3/1086 , H01S3/109 , H01S3/11 , H01S3/1118 , H01S3/1305 , H01S3/1611 , H01S3/1618 , H01S3/1643 , H01S3/235
摘要： The invention describes classes of robust fiber laser systems usable as pulse sources for Nd: or Yb: based regenerative amplifiers intended for industrial settings. The invention modifies adapts and incorporates several recent advances in FCPA systems to use as the input source for this new class of regenerative amplifier.
摘要翻译：本发明描述了可用作用于工业设置的用于基于Nd：或Yb：的再生放大器的脉冲源的鲁棒光纤激光器系统。本发明修改了适应性，并结合了FCPA系统中的几个最新进展，用作这种新型再生放大器的输入源。

9. 发明授权

US08736954B2 High power parallel fiber arrays 有权
标题翻译：大功率并行光纤阵列
公开(公告)号：US08736954B2
公开(公告)日：2014-05-27
申请号：US13457576
申请日：2012-04-27
申请人： Martin E. Fermann , Ingmar Hartl , Andrius Marcinkevicius , Liang Dong
发明人： Martin E. Fermann , Ingmar Hartl , Andrius Marcinkevicius , Liang Dong
IPC分类号： H04B10/17 , H01S4/00
CPC分类号： H01S3/06737 , G02B6/02042 , H01S3/0057 , H01S3/0085 , H01S3/06704 , H01S3/06712 , H01S3/06729 , H01S3/06741 , H01S3/06745 , H01S3/06754 , H01S3/08059 , H01S3/094007 , H01S3/094019 , H01S3/094053 , H01S3/094076 , H01S3/10084 , H01S3/1305 , H01S3/1307 , H01S3/2333 , H01S3/2383
摘要： High power parallel fiber arrays for the amplification of high peak power pulses are described. Fiber arrays based on individual fiber amplifiers as well as fiber arrays based on multi-core fibers can be implemented. The optical phase between the individual fiber amplifier elements of the fiber array is measured and controlled using a variety of phase detection and compensation techniques. High power fiber array amplifiers can be used for EUV and X-ray generation as well as pumping of parametric amplifiers.
摘要翻译：描述了用于放大高峰值功率脉冲的大功率并行光纤阵列。可以实现基于单个光纤放大器的光纤阵列以及基于多芯光纤的光纤阵列。使用各种相位检测和补偿技术来测量和控制光纤阵列的各个光纤放大器元件之间的光学相位。大功率光纤阵列放大器可用于EUV和X射线产生以及泵浦参数放大器。

10. 发明授权

US08456735B2 Pulsed laser sources 有权
标题翻译：脉冲激光源
公开(公告)号：US08456735B2
公开(公告)日：2013-06-04
申请号：US13526137
申请日：2012-06-18
申请人： Martin E. Fermann , Ingmar Hartl , Gennady Imeshev
发明人： Martin E. Fermann , Ingmar Hartl , Gennady Imeshev
IPC分类号： G02F1/35 , H01S3/098
CPC分类号： H01S3/0057 , G02F1/3517 , G02F2001/3528 , H01S3/0078 , H01S3/0092 , H01S3/067 , H01S3/0675 , H01S3/06754 , H01S3/094042 , H01S3/10 , H01S3/105 , H01S3/1053 , H01S3/106 , H01S3/1067 , H01S3/109 , H01S3/1106 , H01S3/1118 , H01S3/1616
摘要： Modelocked fiber laser resonators may be coupled with optical amplifiers. An isolator optionally may separate the resonator from the amplifier. A reflective optical element on one end of the resonator having a relatively low reflectivity may be employed to couple light from the resonator to the amplifier. Enhanced pulse-width control may be provided with concatenated sections of both polarization-maintaining and non-polarization-maintaining fibers. Apodized fiber Bragg gratings and integrated fiber polarizers may also be included in the laser cavity to assist in linearly polarizing the output of the cavity. Very short pulses with a large optical bandwidth may be obtained by matching the dispersion value of the grating to the inverse of the dispersion of the intra-cavity fiber. Frequency comb sources may be constructed from such modelocked fiber oscillators. Low dispersion and an in-line interferometer that provides feedback may assist in controlling the frequency components output from the comb source.
摘要翻译：模式锁定光纤激光谐振器可以与光放大器耦合。隔离器可选地可以将谐振器与放大器分离。可以采用具有相对低的反射率的谐振器的一端上的反射光学元件来将来自谐振器的光耦合到放大器。可以提供增强的脉冲宽度控制，其具有两个偏振保持和非偏振保持光纤的级联部分。变形光纤布拉格光栅和集成光纤偏振器也可以包括在激光腔中，以帮助线性偏振空腔的输出。可以通过将光栅的色散值与腔内光纤的色散相反来获得具有大的光学带宽的非常短的脉冲。频率梳源可以由这种锁模光纤振荡器构成。提供反馈的低色散和在线干涉仪可以有助于控制从梳状源输出的频率分量。

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