专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US08630321B2 Scanning temporal ultrafast delay and methods and apparatuses therefor 失效
标题翻译：扫描时间超快延迟及其方法和装置
公开(公告)号：US08630321B2
公开(公告)日：2014-01-14
申请号：US13564771
申请日：2012-08-02
申请人： Gregg D. Sucha , Martin E. Fermann , Donald J. Harter
发明人： Gregg D. Sucha , Martin E. Fermann , Donald J. Harter
IPC分类号： H01S3/30
CPC分类号： H01S3/2383 , G01P3/806 , G01R13/347 , G01S7/484 , G01S7/486 , G01S7/497 , G01S17/107 , G01S17/50 , H01S3/1398
摘要： Methods and apparatuses for performing temporal scanning using ultra-short pulse width lasers in which only minimal (micro-scale) mechanical movement is required, and related methods for obtaining high-accuracy timing calibration, on the order of femtoseconds, are disclosed. A dual laser system is disclosed in which the cavity of one or more of the lasers is dithered using a piezoelectric element. A Fabry-Perot etalon generates a sequence of timing pulses used in conjunction with a laser beam produced by the laser having the dithered laser cavity. A correlator correlates a laser pulse from one of the lasers with the sequence of timing pulses to produce a calibrated time scale. The invention is applicable to applications requiring rapid scanning and time calibration, including metrology, characterization of charge dynamics in semiconductors, electro-optic testing of ultrafast electronic and optoelectronic devices, optical time domain reflectometry, and electro-optic sampling oscilloscopes.
摘要翻译：公开了使用仅需要最小（微尺度）机械运动的超短脉冲宽度激光器进行时间扫描的方法和装置，以及用于获得高精度定时校准的相关方法，依飞溅次数。公开了一种双激光系统，其中一个或多个激光器的腔体使用压电元件进行抖动。法布里 - 珀罗标准具产生一系列定时脉冲，与由具有抖动激光腔的激光器产生的激光束结合使用。相关器将来自激光器之一的激光脉冲与定时脉冲序列相关联，以产生校准的时间标度。本发明适用于需要快速扫描和时间校准的应用，包括计量学，半导体中的电荷动力学表征，超快电子和光电子器件的电光测试，光时域反射测量和电光采样示波器。

2. 发明申请

US20130010818A1 SCANNING TEMPORAL ULTRAFAST DELAY AND METHODS AND APPARATUSES THEREFOR 失效
标题翻译：扫描时延超时延及其方法及其设备
公开(公告)号：US20130010818A1
公开(公告)日：2013-01-10
申请号：US13564771
申请日：2012-08-02
申请人： Gregg D. SUCHA , Martin E. FERMANN , Donald J. HARTER
发明人： Gregg D. SUCHA , Martin E. FERMANN , Donald J. HARTER
IPC分类号： H01S3/30
CPC分类号： H01S3/2383 , G01P3/806 , G01R13/347 , G01S7/484 , G01S7/486 , G01S7/497 , G01S17/107 , G01S17/50 , H01S3/1398
摘要： Methods and apparatuses for performing temporal scanning using ultra-short pulse width lasers in which only minimal (micro-scale) mechanical movement is required, and related methods for obtaining high-accuracy timing calibration, on the order of femtoseconds, are disclosed. A dual laser system is disclosed in which the cavity of one or more of the lasers is dithered using a piezoelectric element. A Fabry-Perot etalon generates a sequence of timing pulses used in conjunction with a laser beam produced by the laser having the dithered laser cavity. A correlator correlates a laser pulse from one of the lasers with the sequence of timing pulses to produce a calibrated time scale. The invention is applicable to applications requiring rapid scanning and time calibration, including metrology, characterization of charge dynamics in semiconductors, electro-optic testing of ultrafast electronic and optoelectronic devices, optical time domain reflectometry, and electro-optic sampling oscilloscopes.
摘要翻译：公开了使用仅需要最小（微尺度）机械运动的超短脉冲宽度激光器进行时间扫描的方法和装置，以及用于获得高精度定时校准的相关方法，依飞溅次数。公开了一种双激光系统，其中一个或多个激光器的腔体使用压电元件进行抖动。法布里 - 珀罗标准具产生一系列定时脉冲，与由具有抖动激光腔的激光器产生的激光束结合使用。相关器将来自激光器之一的激光脉冲与定时脉冲序列相关联，以产生校准的时间标度。本发明适用于需要快速扫描和时间校准的应用，包括计量学，半导体中的电荷动力学表征，超快电子和光电子器件的电光测试，光时域反射测量和电光采样示波器。

3. 发明申请

US20130003065A1 FEMTOSECOND LASER PROCESSING SYSTEM WITH PROCESS PARAMETERS CONTROLS AND FEEDBACK 有权
公开(公告)号：US20130003065A1
公开(公告)日：2013-01-03
申请号：US13611271
申请日：2012-09-12
申请人： Lawrence SHAH , James M. BOVATSEK , Alan Y. ARAI , Tadashi YAMAMOTO , Rajesh S. PATEL , Donald J. HARTER
发明人： Lawrence SHAH , James M. BOVATSEK , Alan Y. ARAI , Tadashi YAMAMOTO , Rajesh S. PATEL , Donald J. HARTER
IPC分类号： H01S3/10 , G01J3/28
CPC分类号： H01S3/10038 , G01J11/00 , H01S3/0014 , H01S3/005 , H01S3/0057 , H01S3/0064 , H01S3/0078 , H01S3/06754 , H01S3/10023 , H01S3/10061 , H01S3/102 , H01S3/1024 , H01S3/108 , H01S3/109 , H01S3/1305 , H01S3/1618
摘要： A femtosecond laser based laser processing system having a femtosecond laser, frequency conversion optics, beam manipulation optics, target motion control, processing chamber, diagnostic systems and system control modules. The femtosecond laser based laser processing system allows for the utilization of the unique heat control in micromachining, and the system has greater output beam stability, continuously variable repetition rate and unique temporal beam shaping capabilities.

4. 发明授权

US08285099B2 Large core holey fibers 有权
标题翻译：大核心多孔纤维
公开(公告)号：US08285099B2
公开(公告)日：2012-10-09
申请号：US11851270
申请日：2007-09-06
申请人： Liang Dong , Donald J. Harter , William Wong
发明人： Liang Dong , Donald J. Harter , William Wong
IPC分类号： G02B6/36 , G02B6/32 , H01S3/00
CPC分类号： G02B6/032 , G02B6/02009 , G02B6/02047 , G02B6/02328 , G02B6/02338 , G02B6/02342 , G02B6/02357 , G02B6/02361 , G02B6/02366 , G02B6/024 , G02B6/14 , G02B6/32 , H01S3/06716 , H01S3/06729 , H01S3/06733 , H01S3/06741 , H01S3/06754
摘要： Various types of holey fiber provide optical propagation. In various embodiments, for example, a large core holey fiber comprises a cladding region formed by large holes arranged in few layers. The number of layers or rows of holes about the large core can be used to coarse tune the leakage losses of the fundamental and higher modes of a signal, thereby allowing the non-fundamental modes to be substantially eliminated by leakage over a given length of fiber. Fine tuning of leakage losses can be performed by adjusting the hole dimension and/or the hole spacing to yield a desired operation with a desired leakage loss of the fundamental mode. Resulting holely fibers have a large hole dimension and spacing, and thus a large core, when compared to traditional fibers and conventional fibers that propagate a single mode. Other loss mechanisms, such as bend loss and modal spacing can be utilized for selected modes of operation of holey fibers. Other embodiments are also provided.
摘要翻译：各种有孔光纤提供光学传播。在各种实施例中，例如，大的核心多孔纤维包括由几个布置成几层的大孔形成的包层区域。可以使用围绕大芯的多个层或多排的孔来粗调基本信号和较高模式的信号的泄漏损耗，从而通过在给定长度的光纤上的泄漏来基本上消除非基本模式。泄漏损失的微调可以通过调整孔尺寸和/或孔间距来实现，以产生所需的基本模式的泄漏损失的操作。与传统单模式的传统纤维和传统纤维相比，所产生的多孔纤维具有较大的孔尺寸和间距，因而具有较大的纤芯。诸如弯曲损耗和模态间隔的其它损耗机制可用于多孔纤维的选定操作模式。还提供了其他实施例。

5. 发明授权

US07995270B2 Microchip—Yb fiber hybrid optical amplifier for micro-machining and marking 有权
标题翻译：用于微加工和标记的Microchip-Yb光纤混合光放大器
公开(公告)号：US07995270B2
公开(公告)日：2011-08-09
申请号：US12647106
申请日：2009-12-24
申请人： Donald J. Harter , Martin E. Fermann , Ferenc Raksi , Almantas Galvanauskas
发明人： Donald J. Harter , Martin E. Fermann , Ferenc Raksi , Almantas Galvanauskas
IPC分类号： H01S3/00
CPC分类号： H01S3/0627 , G02B6/262 , G02F1/3525 , H01S3/0606 , H01S3/0615 , H01S3/06708 , H01S3/06754 , H01S3/094003 , H01S3/094007 , H01S3/094069 , H01S3/09415 , H01S3/115 , H01S3/1611 , H01S3/1618 , H01S3/1673 , H01S3/302
摘要： The invention describes techniques for the control of the spatial as well as spectral beam quality of multi-mode fiber amplification of high peak power pulses as well as using such a configuration to replace the present diode-pumped, Neodynium based sources. Perfect spatial beam-quality can be ensured by exciting the fundamental mode in the multi-mode fibers with appropriate mode-matching optics and techniques. The loss of spatial beam-quality in the multi-mode fibers along the fiber length can be minimized by using multi-mode fibers with large cladding diameters. Near diffraction-limited coherent multi-mode amplifiers can be conveniently cladding pumped, allowing for the generation of high average power. Moreover, the polarization state in the multi-mode fiber amplifiers can be preserved by implementing multi-mode fibers with stress producing regions or elliptical fiber cores These lasers find application as a general replacement of Nd: based lasers, especially Nd:YAG lasers. Particularly utility is disclosed for applications in the marking, micro-machining and drilling areas.
摘要翻译：本发明描述了用于控制高峰值功率脉冲的多模光纤放大的空间以及光束质量的技术，以及使用这种配置来替代当前二极管泵浦的基于钕的源。通过适当的模式匹配光学和技术，可以通过激发多模光纤中的基模来确保完美的空间光束质量。通过使用具有大包层直径的多模光纤，能够使沿着光纤长度的多模光纤中的空间光束质量损失最小化。近衍射极限相干多模放大器可以方便地进行包层泵浦，从而产生高平均功率。此外，通过实施具有应力产生区域或椭圆形光纤核心的多模光纤，可以保持多模光纤放大器中的偏振状态。这些激光器可用作Nd基激光器，尤其是Nd：YAG激光器的一般替代。公开了用于标记，微加工和钻孔领域的应用。

6. 发明申请

US20100110537A1 MICROCHIP-Yb FIBER HYBRID OPTICAL AMPLIFIER FOR MICRO-MACHINING AND MARKING 有权
标题翻译： MICROCHIP-Yb光纤混合光放大器，用于微加工和标记
公开(公告)号：US20100110537A1
公开(公告)日：2010-05-06
申请号：US12647106
申请日：2009-12-24
申请人： Almantas GALVANAUSKAS , Donald J. HARTER , Martin E. FERMANN , Ferenc RAKSI
发明人： Almantas GALVANAUSKAS , Donald J. HARTER , Martin E. FERMANN , Ferenc RAKSI
IPC分类号： H01S3/14 , G02B6/26 , H01S3/00
CPC分类号： H01S3/0627 , G02B6/262 , G02F1/3525 , H01S3/0606 , H01S3/0615 , H01S3/06708 , H01S3/06754 , H01S3/094003 , H01S3/094007 , H01S3/094069 , H01S3/09415 , H01S3/115 , H01S3/1611 , H01S3/1618 , H01S3/1673 , H01S3/302
摘要： The invention describes techniques for the control of the spatial as well as spectral beam quality of multi-mode fiber amplification of high peak power pulses as well as using such a configuration to replace the present diode-pumped, Neodynium based sources. Perfect spatial beam-quality can be ensured by exciting the fundamental mode in the multi-mode fibers with appropriate mode-matching optics and techniques. The loss of spatial beam-quality in the multi-mode fibers along the fiber length can be minimized by using multi-mode fibers with large cladding diameters. Near diffraction-limited coherent multi-mode amplifiers can be conveniently cladding pumped, allowing for the generation of high average power. Moreover, the polarization state in the multi-mode fiber amplifiers can be preserved by implementing multi-mode fibers with stress producing regions or elliptical fiber cores These lasers find application as a general replacement of Nd: based lasers, especially Nd:YAG lasers. Particularly utility is disclosed for applications in the marking, micro-machining and drilling areas.
摘要翻译：本发明描述了用于控制高峰值功率脉冲的多模光纤放大的空间以及光束质量的技术，以及使用这种配置来替代当前二极管泵浦的基于钕的源。通过适当的模式匹配光学和技术，可以通过激发多模光纤中的基模来确保完美的空间光束质量。通过使用具有大包层直径的多模光纤，能够使沿着光纤长度的多模光纤中的空间光束质量损失最小化。近衍射极限相干多模放大器可以方便地进行包层泵浦，从而产生高平均功率。此外，通过实施具有应力产生区域或椭圆形光纤核心的多模光纤，可以保持多模光纤放大器中的偏振状态。这些激光器可用作Nd基激光器，尤其是Nd：YAG激光器的一般替代。公开了用于标记，微加工和钻孔领域的应用。

7. 发明申请

US20100074279A1 ENVIRONMENTALLY STABLE PASSIVELY MODELOCKED FIBER LASER PULSE SOURCE 失效
标题翻译：环境稳定的无缝模拟光纤激光脉冲源
公开(公告)号：US20100074279A1
公开(公告)日：2010-03-25
申请号：US12625496
申请日：2009-11-24
申请人： Martin E. Fermann , Donald J. Harter
发明人： Martin E. Fermann , Donald J. Harter
IPC分类号： H01S3/30
CPC分类号： H01S3/067 , H01S3/08059 , H01S3/1112 , H01S3/1115 , Y10T29/49826
摘要： The present invention is directed to providing an environmentally stable, ultra-short pulse source. Exemplary embodiments relate to passively modelocked ultra-short fiber lasers which are insensitive to temperature variations and which possess only negligible sensitivity to pressure variations. Further, exemplary embodiments can be implemented in a cost-effective manner which render them commercially practical in unlimited applications. Arbitrary fiber lengths (e.g., on the order of 1 millimeter to 1 kilometer, or greater) can be used to provide an ultra-short pulse with a cost-effective architecture which is commercially practical.
摘要翻译：本发明旨在提供一种环境稳定的超短脉冲源。示例性实施例涉及对温度变化不敏感并且对压力变化仅具有可忽略的敏感性的被动锁模超短纤维激光器。此外，示例性实施例可以以成本有效的方式实现，这使得它们在无限制的应用中具有商业上的实用性。可以使用任意光纤长度（例如，大约1毫米至1千米或更大）可提供具有商业上实用的具有成本效益的架构的超短脉冲。

8. 发明申请

US20090097515A1 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：在固态短脉冲激光系统中并入的模式锁定振荡器和光纤系统
公开(公告)号：US20090097515A1
公开(公告)日：2009-04-16
申请号：US12340036
申请日：2008-12-19
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： H01S3/10
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

US07453913B2 Resonant Fabry-Perot semiconductor saturable absorbers and two photon absorption power limiters 有权
标题翻译：共振法布里 - 珀罗半导体饱和吸收器和两个光子吸收功率限制器
公开(公告)号：US07453913B2
公开(公告)日：2008-11-18
申请号：US11197852
申请日：2005-08-05
申请人： Min Jiang , Donald J. Harter , Gregg D. Sucha , Martin E. Fermann
发明人： Min Jiang , Donald J. Harter , Gregg D. Sucha , Martin E. Fermann
IPC分类号： H01S3/098
CPC分类号： H01S3/1118 , G02F1/3523 , H01S3/067 , H01S3/08059 , H01S3/094003 , H01S3/1063 , H01S3/1608
摘要： An intracavity resonant Fabry-Perot saturable absorber (R-FPSA) induces modelocking in a laser such as a fiber laser. An optical limiter such as a two photon absorber (TPA) can be used in conjunction with the R-FPSA, so that Q-switching is inhibited, resulting in laser output that is cw modelocked. By using both an R-FPSA and a TPA, the Q-switched modelocked behavior of a fiber laser is observed to evolve into cw modelocking.
摘要翻译：腔内共振法布里 - 珀罗可饱和吸收体（R-FPSA）在诸如光纤激光器的激光器中诱导锁模。诸如双光子吸收器（TPA）的光限制器可以与R-FPSA一起使用，使得Q开关被禁止，导致cw锁模的激光输出。通过使用R-FPSA和TPA，观察到光纤激光器的Q开关模式锁定行为演变成cw锁模。

10. 发明申请

US20080232407A1 UTILIZATION OF YB: AND ND: MODE-LOCKED OSCILLATORS IN SOLID-STATE SHORT PULSE LASER SYSTEM 有权
标题翻译： YB：和ND的利用：固态短脉冲激光系统中的锁模振荡器
公开(公告)号：US20080232407A1
公开(公告)日：2008-09-25
申请号：US12132364
申请日：2008-06-03
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： H01S3/10
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：掺杂的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。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式