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1. 发明授权

US06741619B1 Semiconductor elements for stabilizing laser output 失效
标题翻译：半导体元件用于稳定激光输出
公开(公告)号：US06741619B1
公开(公告)日：2004-05-25
申请号：US09542061
申请日：2000-04-03
申请人： Erik R. Thoen , Elisabeth M. Koontz , Erich P. Ippen , Leslie A. Kolodziejski , Franz X. Kaertner , Hermann A. Haus , Matthew E. Grein
发明人： Erik R. Thoen , Elisabeth M. Koontz , Erich P. Ippen , Leslie A. Kolodziejski , Franz X. Kaertner , Hermann A. Haus , Matthew E. Grein
IPC分类号： H01S3098
CPC分类号： H01S3/1112 , H01S3/06791 , H01S3/1063 , H01S3/1109 , H01S3/1118 , H01S5/0601 , H01S5/065 , H01S5/0657
摘要： Systems and methods for enhancing the stability of a mode-locked laser's output are disclosed. The laser systems include a mode-locking element that mode-locks the laser's output, and a semiconductor element. The semiconductor element produces a loss at the laser's operative wavelength that increases as pulse energy increases, thereby enhancing the stability of the mode-locked output. The semiconductor elements can be used to enhance stability of both passively and actively mode-locked laser systems.
摘要翻译：公开了用于提高锁模激光器输出的稳定性的系统和方法。激光系统包括模式锁定激光器的输出的模式锁定元件和半导体元件。半导体元件在激光器的工作波长处产生损耗，随着脉冲能量增加而增加，从而增强了锁模输出的稳定性。半导体元件可用于增强被动和主动锁模激光系统的稳定性。

2. 发明授权

US08194709B2 High-repetition-rate guided-mode femtosecond laser 有权
标题翻译：高重复率引导模式飞秒激光
公开(公告)号：US08194709B2
公开(公告)日：2012-06-05
申请号：US12475674
申请日：2009-06-01
申请人： Franz X. Kaertner , Hyunil Byun , Jian Chen , Erich P. Ippen , Dominik Pudo
发明人： Franz X. Kaertner , Hyunil Byun , Jian Chen , Erich P. Ippen , Dominik Pudo
IPC分类号： H01S3/10
CPC分类号： H01S3/1115 , H01S3/0632 , H01S3/067 , H01S3/06725 , H01S3/06741 , H01S3/06791 , H01S3/2308 , H01S2301/085
摘要： Femtosecond pulse trains in waveguide lasers with high fundamental repetition rates are achieved by exploiting the nonlinearity in the waveguide. Components of the apparatus include an optical resonator, a saturable absorber for starting and stabilizing mode-locking, and a gain element. Part of the laser cavity or the entire laser cavity is made of waveguide or fiber (collectively called “waveguide” herein). The net dispersion of the laser cavity can be anomalous. This anomalous dispersion in combination with the positive self-phase modulation nonlinearity in the waveguide creates soliton formation to shorten the pulse duration in the invented lasers. Conversely, a normal dispersive waveguide with negative self-phase modulation nonlinearity can also be used.
摘要翻译：通过利用波导中的非线性来实现具有高基波重复率的波导激光器中的飞秒脉冲串。该装置的组件包括光谐振器，用于启动和稳定锁模的饱和吸收器和增益元件。激光腔或整个激光腔的一部分由波导或光纤（这里统称为“波导”）制成。激光腔的净色散可能是异常的。这种与波导中的正自相位调制非线性结合的异常色散产生孤子形成，以缩短本发明激光器中的脉冲持续时间。相反，也可以使用具有负自相位调制非线性的正常色散波导。

3. 发明授权

US06590925B1 Double-chirped mirror systems and methods 失效
标题翻译：双啁啾镜系统和方法
公开(公告)号：US06590925B1
公开(公告)日：2003-07-08
申请号：US09630293
申请日：2000-08-01
申请人： Franz X. Kaertner , Erich P. Ippen , Uwe Morgner , James G. Fujimoto
发明人： Franz X. Kaertner , Erich P. Ippen , Uwe Morgner , James G. Fujimoto
IPC分类号： H01S308
CPC分类号： H01S3/0057
摘要： A mirror system for use in generating a short duration laser pulse is disclosed. The system includes first and second double-chirped mirrors disposed along an optical path within a cavity, where the second double-chirped mirror includes an additional phase-shifting layer as compared to the first double-chirped mirror. The additional phase-shifting layer causes the mirror system during use to produce a laser pulse that is characterized by oscillations in group delay substantially reduced in amplitude in comparison to oscillations in group delay for a pulse produced by the same system without the additional phase-shifting layer.
摘要翻译：公开了一种用于产生短时激光脉冲的镜系统。该系统包括沿着空腔内的光路设置的第一和第二双啁啾反射镜，其中与第一双啁啾反射镜相比，第二双啁啾反射镜包括附加的相移层。附加的移相层在使用过程中使镜系统产生激光脉冲，其特征在于与同一系统产生的脉冲的组延迟的振荡相比，组延迟中的振荡明显减小，而没有附加的相移层。

4. 发明申请

US20090310631A1 High-Repetition-Rate Guided-Mode Femtosecond Laser 有权
标题翻译：高重复率引导式飞秒激光
公开(公告)号：US20090310631A1
公开(公告)日：2009-12-17
申请号：US12475674
申请日：2009-06-01
申请人： Franz X. Kaertner , Hyunil Byun , Jian Chen , Dominik Pudo , Erich P. Ippen
发明人： Franz X. Kaertner , Hyunil Byun , Jian Chen , Dominik Pudo , Erich P. Ippen
IPC分类号： H01S3/10 , H01S3/08 , H01S3/04
CPC分类号： H01S3/1115 , H01S3/0632 , H01S3/067 , H01S3/06725 , H01S3/06741 , H01S3/06791 , H01S3/2308 , H01S2301/085
摘要： Femtosecond pulse trains in waveguide lasers with high fundamental repetition rates are achieved by exploiting the nonlinearity in the waveguide. Components of the apparatus include an optical resonator, a saturable absorber for starting and stabilizing mode-locking, and a gain element. Part of the laser cavity or the entire laser cavity is made of waveguide or fiber (collectively called “waveguide” herein). The net dispersion of the laser cavity can be anomalous. This anomalous dispersion in combination with the positive self-phase modulation nonlinearity in the waveguide creates soliton formation to shorten the pulse duration in the invented lasers. Conversely, a normal dispersive waveguide with negative self-phase modulation nonlinearity can also be used.
摘要翻译：通过利用波导中的非线性来实现具有高基波重复率的波导激光器中的飞秒脉冲串。该装置的组件包括光谐振器，用于启动和稳定锁模的饱和吸收器和增益元件。激光腔或整个激光腔的一部分由波导或光纤（这里统称为“波导”）制成。激光腔的净色散可能是异常的。这种与波导中的正自相位调制非线性结合的异常色散产生孤子形成，以缩短本发明激光器中的脉冲持续时间。相反，也可以使用具有负自相位调制非线性的正常色散波导。

5. 发明申请

US20110274135A1 Broadband Dispersion-Free Optical Filter Cavities Based on Dielectric Mirrors with Complementary Dispersion 有权
标题翻译：基于具有互补色散的介质镜的宽带无色散滤光腔
公开(公告)号：US20110274135A1
公开(公告)日：2011-11-10
申请号：US13100068
申请日：2011-05-03
申请人： Franz X. Kaertner , Li-Jin Chen , Guoqing Chang
发明人： Franz X. Kaertner , Li-Jin Chen , Guoqing Chang
IPC分类号： H01S3/08
CPC分类号： G02B5/0825 , G02B17/004 , H01S5/0078
摘要： A substantially dispersion-free optical filter cavity includes a first multilayer mirror and a second multilayer mirror, wherein each mirror includes layers of a less-refractive material and layers of a more-refractive material, the more-refractive material having a higher index of refraction than the less-refractive material. The mirrors are separated by a spacing, and the thickness of a plurality of the layers in the second multilayer mirror differ from corresponding layers in the first multilayer mirror to provide the cavity with complementary group-delay dispersion across the cavity with a phase difference within, e.g., ±0.015 rad across a range of wavelengths spanning at least, e.g., 50 nm.
摘要翻译：基本上无色散的光学滤光器空腔包括第一多层反射镜和第二多层反射镜，其中每个反射镜包括较低折射材料的层和较折射材料层，该折射率较高的材料具有较高的折射率比较少的折射材料。反射镜被间隔分开，并且第二多层反射镜中的多个层的厚度与第一多层反射镜中的相应层不同，以便在空腔内具有在腔内具有相位差的互补组延迟色散，例如，跨越至少例如50nm的波长范围的±0.015rad。

6. 发明授权

US07839905B2 Carrier-envelope phase shift using linear media 有权
标题翻译：使用线性介质的载波包络相移
公开(公告)号：US07839905B2
公开(公告)日：2010-11-23
申请号：US11608666
申请日：2006-12-08
申请人： Franz X. Kaertner , Richard Ell
发明人： Franz X. Kaertner , Richard Ell
IPC分类号： H01S3/10
CPC分类号： H01S3/0057 , G01J11/00 , G02B5/04 , G02B26/06 , G02F1/0102 , G02F2203/26 , G02F2203/50 , G02F2203/54 , H01S3/0014 , H01S3/10053 , H01S3/1022
摘要： The carrier-envelope phase in a train of optical pulses is varied utilizing the dispersive properties of lossless plates while the total dispersion in transmission is maintained practically constant. The plates include sloped surfaces and are mounted for displacement such that the ratio of the thicknesses of the two plates through which the optical pulses will pass can be varied by displacing the plates so as to shift the carrier-envelope phase in the optical pulses. In one embodiment, the plates include a barium fluoride wedge and a fumed silica wedge, wherein the wedges are bond together to form a composite structure with thicker and thinner portions of the wedges inversely matched.
摘要翻译：光脉冲序列中的载波包络相位利用无损板的色散特性而变化，而传输中的总色散几乎保持恒定。这些板包括倾斜表面并且被安装以便移位，使得光脉冲通过的两个板的厚度比可以通过移动板来改变，以便移动光脉冲中的载波包络相位。在一个实施方案中，所述板包括氟化钡楔形物和热解法二氧化硅楔形物，其中楔形物结合在一起以形成具有较厚和较薄部分的楔形物相反匹配的复合结构。

7. 发明授权

US07369714B2 High-speed electronic carrier-injection modulator based on high-index-contrast Si-waveguide 失效
标题翻译：基于高折射率对比Si波导的高速电子载流子注入调制器
公开(公告)号：US07369714B2
公开(公告)日：2008-05-06
申请号：US11120769
申请日：2005-05-03
申请人： Fuwan Gan , Franz X. Kaertner
发明人： Fuwan Gan , Franz X. Kaertner
IPC分类号： G02F1/035 , G02F1/01
CPC分类号： G02F1/025 , G02F1/2257 , G02F2001/0152 , G02F2201/063 , G02F2201/066 , G02F2202/105
摘要： An opto-electronic modulator includes a Mach-Zehnder structure that comprises p+in+-diodes in both arms of the Mach-Zehnder structure. The Mach-Zehnder structure is formed by waveguides so as to confine an optical mode in the opto-electronic modulator.
摘要翻译：光电调制器包括Mach-Zehnder结构，其包括在Mach-Zehnder结构的两个臂中的+ SUPER +二极管中的p + +。 Mach-Zehnder结构由波导形成，以便将光学模式限制在光电调制器中。

8. 发明授权

US08787529B2 Compact coherent current and radiation source 有权
标题翻译：紧凑的相干电流和辐射源
公开(公告)号：US08787529B2
公开(公告)日：2014-07-22
申请号：US13105114
申请日：2011-05-11
申请人： William S. Graves , Franz X. Kaertner , David E. Moncton
发明人： William S. Graves , Franz X. Kaertner , David E. Moncton
IPC分类号： H01J35/02 , H05G2/00 , B82Y20/00 , H05H7/00
CPC分类号： H05G2/00 , B82Y20/00 , H01J35/02 , H01J2235/068 , H05G2/008 , H05H2007/005 , H05H2007/007
摘要： Coherent electronic current, which can be used to generate coherent radiation, is generated by first generating and transmitting an array of discrete electron beamlets from a nanocathode array along a longitudinal axis. The array of electron beamlets is then focused to reduce the spacing that separates the electron beamlets. The transverse-axis spacing of the electron beamlets is then transferred to the longitudinal axis via an emittance exchange beamline, creating a periodically modulated distribution of coherent electronic current. The coherent electronic current can then be directed into a stream of photons to generate coherent radiation.
摘要翻译：通过首先沿着纵向轴线从纳米阴极阵列产生和传输离散的电子束阵列，产生可用于产生相干辐射的相干电子电流。然后电子束的阵列被聚焦以减小分离电子束的间隔。然后电子束的横轴间隔经由发射交换束线转移到纵轴，产生相干电子电流的周期性调制分布。然后可以将相干电子电流引导到光子流中以产生相干辐射。

9. 发明授权

US07397567B2 Balanced optical-radiofrequency phase detector 有权
标题翻译：平衡光射频相位检测器
公开(公告)号：US07397567B2
公开(公告)日：2008-07-08
申请号：US11609195
申请日：2006-12-11
申请人： Franz X. Kaertner , Jung-Won Kim
发明人： Franz X. Kaertner , Jung-Won Kim
IPC分类号： G01B9/02
CPC分类号： G01J9/02 , G01J9/04 , G04G7/00 , H01S3/1304 , H01S3/2383
摘要： A balanced optical-RF phase detector for the extraction of low-jitter radiofrequency (RF) signals from optical pulse trains is demonstrated. The extraction of the low-jitter radiofrequency signals is based on the precise phase detection by use of a differentially biased Sagnac-loop interferometer and synchronous detection. The phase-error signal from this balanced optical-RF phase detector, which is robust against drifts and photodetector nonlinearities, is used to regenerate low-jitter radiofrequency signals from optical pulse trains. Alternatively, the phase-error signal is used to generate a low-jitter optical pulse train, synchronized with a master radiofrequency signal or to synchronize multiple modelocked lasers with each other.
摘要翻译：证明了用于从光脉冲串提取低抖动射频（RF）信号的平衡光 - 射相位检测器。低抖动射频信号的提取基于通过使用差分偏置的Sagnac环路干涉仪和同步检测的精确相位检测。来自该平衡光 - RF相位检测器的相位误差信号对于漂移和光电检测器非线性都是鲁棒的，用于再生来自光脉冲串的低抖动射频信号。或者，相位误差信号用于产生与主射频信号同步的低抖动光脉冲串，或者使多个锁模激光器彼此同步。

10. 发明授权

US08976447B2 Broadband dispersion-free optical filter cavities based on dielectric mirrors with complementary dispersion 有权
标题翻译：基于具有互补色散的电介质反射镜的宽带无色散滤光腔
公开(公告)号：US08976447B2
公开(公告)日：2015-03-10
申请号：US13100068
申请日：2011-05-03
申请人： Franz X. Kaertner , Li-Jin Chen , Guoqing Chang
发明人： Franz X. Kaertner , Li-Jin Chen , Guoqing Chang
IPC分类号： H01S3/00 , G02B5/08 , G02B17/00 , H01S5/00
CPC分类号： G02B5/0825 , G02B17/004 , H01S5/0078
摘要： A substantially dispersion-free optical filter cavity includes a first multilayer mirror and a second multilayer mirror, wherein each mirror includes layers of a less-refractive material and layers of a more-refractive material, the more-refractive material having a higher index of refraction than the less-refractive material. The mirrors are separated by a spacing, and the thickness of a plurality of the layers in the second multilayer mirror differ from corresponding layers in the first multilayer mirror to provide the cavity with complementary group-delay dispersion across the cavity with a phase difference within, e.g., ±0.015 rad across a range of wavelengths spanning at least, e.g., 50 nm.
摘要翻译：基本上无色散的光学滤光器空腔包括第一多层反射镜和第二多层反射镜，其中每个反射镜包括较低折射材料的层和较折射材料层，该折射率较高的材料具有较高的折射率比较少的折射材料。反射镜被间隔分开，并且第二多层反射镜中的多个层的厚度与第一多层反射镜中的相应层不同，以便在空腔内具有在腔内具有相位差的互补组延迟色散，例如，跨越至少例如50nm的波长范围的±0.015rad。

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