公开(公告)号：US20110259861A1

公开(公告)日：2011-10-27

申请号：US12942888

申请日：2010-11-09

申请人： Jordan Crist ,  Jason N. Farmer ,  Robert G. Waarts

发明人： Jordan Crist ,  Jason N. Farmer ,  Robert G. Waarts

IPC分类号： B23K26/00

CPC分类号： B23K26/36 ,  B23K26/0624 ,  B23K26/40 ,  B23K2101/40 ,  B23K2103/50

摘要： Scribing operations with reduced substrate heating can be provided by applying multiple optical pulses to a substrate within a time interval that is less than a material recombination time. Typically a series of pulses of durations of 5-200 ps with pulse energies of less than about 0.002 mJ can be applied at rates of about 1 MHz to about 30 MHz. Beam area and beam scanning are configured to provide substantial overlap so that material can be removed by cold ablation.

摘要翻译： 可以通过在小于材料复合时间的时间间隔内对衬底施加多个光脉冲来提供具有减少衬底加热的划线操作。 通常，脉冲能量小于约0.002mJ的持续时间为5-200ps的一系列脉冲可以以约1MHz至约30MHz的速率施加。 波束区域和波束扫描被配置为提供实质的重叠，使得材料可以通过冷烧蚀去除。

公开(公告)号：US20100040095A1

公开(公告)日：2010-02-18

申请号：US12229043

申请日：2008-08-18

申请人： Michael M. Mielke ,  Robert G. Waarts ,  Sha Tong ,  Kok Wai Chang

发明人： Michael M. Mielke ,  Robert G. Waarts ,  Sha Tong ,  Kok Wai Chang

IPC分类号： H01S3/10

CPC分类号： H01S3/0057 ,  H01S3/06754 ,  H01S3/10046 ,  H01S3/10061 ,  H01S3/1302 ,  H01S3/2308 ,  H01S3/2383 ,  H01S2301/02

摘要： An ultra-short pulsed laser system comprises an optical combiner, optical amplifier, optical pulse compressor, and optical separator. The optical combiner is configured to combine a primary optical pulse with a secondary optical signal to generate a combined optical signal. The primary optical pulse and the secondary optical signal have a distinguishable characteristic. The optical amplifier is configured to optically amplify the combined optical signal. The optical pulse compressor is configured to compress at least the primary optical pulse contained within the optically amplified combined optical signal and output a compressed combined optical signal. The optical separator is configured to separate the compressed combined optical signal into an output primary optical pulse and an output secondary optical signal according to the distinguishable characteristic.

摘要翻译： 超短脉冲激光系统包括光学组合器，光放大器，光脉冲压缩器和光分离器。 光组合器被配置为将初级光脉冲与次光信号组合以产生组合的光信号。 主光脉冲和次光信号具有可区分的特性。 光放大器被配置为光学放大组合的光信号。 光脉冲压缩器被配置为至少压缩光放大组合光信号中包含的主光脉冲，并输出压缩的组合光信号。 光分离器被配置为根据可区分的特性将压缩的组合光信号分离成输出主光脉冲和输出次光信号。

公开(公告)号：US07120174B2

公开(公告)日：2006-10-10

申请号：US10867531

申请日：2004-06-14

申请人： Stuart MacCormack ,  Robert G. Waarts

发明人： Stuart MacCormack ,  Robert G. Waarts

IPC分类号： H01S3/117

CPC分类号： H01S3/117 ,  H01S3/0675 ,  H01S3/09408 ,  H01S3/1103 ,  H01S3/1127 ,  H01S3/115

摘要： A laser apparatus for generating optical pulses is disclosed, said laser apparatus has a reflecting gain element preferably including a fiber gain medium. The reflecting gain element is coupled to a controllable reflecting/transmitting module having a reflecting state and a transmitting state, wherein the controllable reflecting/transmitting means are operable to switch from the transmitting state to the reflecting state to initiate a build-up of an optical pulse, and to switch back to the transmitting state for outputting the optical pulse before it reaches the reflecting/transmitting means after a cavity roundtrip. In a preferred embodiment, the controllable reflecting/transmitting module includes an acousto-optic switch at an output end of a laser operable to output the optical pulse in zeroth diffraction order.

摘要翻译： 公开了一种用于产生光脉冲的激光装置，所述激光装置具有优选包括光纤增益介质的反射增益元件。 反射增益元件耦合到具有反射状态和发射状态的可控反射/发射模块，其中可控反射/发射装置可操作以从透射状态切换到反射状态，以启动光学 并且在空腔往返之前到达反射/发射装置之前切换回发送状态以输出光脉冲。 在优选实施例中，可控反射/发射模块包括在激光器的输出端处的声光开关，可操作以以零级衍射级输出光脉冲。

公开(公告)号：US06434295B1

公开(公告)日：2002-08-13

申请号：US09483032

申请日：2000-01-13

申请人： Stuart MacCormack ,  Vincent G. Dominic ,  Robert G. Waarts

发明人： Stuart MacCormack ,  Vincent G. Dominic ,  Robert G. Waarts

IPC分类号： G02B626

CPC分类号： H01S3/067 ,  H01S3/06704 ,  H01S3/06708 ,  H01S3/06729 ,  H01S3/094003 ,  H01S3/0941 ,  H01S3/2383

摘要： All-fiber coupling architectures include at least one fiber gain media, e.g. a fiber amplifier or a fiber laser, providing for the coupling light from one or more multi-wavelength pump sources propagating in a multimode core fiber at multiple points along a double clad fiber or at least at one point along multiple double clad fibers having their inner claddings fused to the multimode core fiber. The latter arrangement provides for a low cost utility multi-signal fiber amplifier for telecommunication applications.

摘要翻译： 全光纤耦合结构包括至少一个光纤增益介质，例如， 光纤放大器或光纤激光器，提供来自一个或多个多波长泵浦源的耦合光，该多个光源在多重芯纤维中沿着双包层光纤在多个点处传播，或至少在一个点处沿着具有其内部的多个双包层光纤 融合到多模芯纤维的包层。 后一种布置为电信应用提供了一种低成本效用的多信号光纤放大器。

公开(公告)号：US06407855B1

公开(公告)日：2002-06-18

申请号：US09430394

申请日：1999-10-29

申请人： Stuart MacCormack ,  David M. Giltner ,  Vincent G. Dominic ,  Donald R. Scifres ,  Bardia Pezeshki ,  Edward C. Vail ,  Mehrdad Ziari ,  Robert G. Waarts

发明人： Stuart MacCormack ,  David M. Giltner ,  Vincent G. Dominic ,  Donald R. Scifres ,  Bardia Pezeshki ,  Edward C. Vail ,  Mehrdad Ziari ,  Robert G. Waarts

IPC分类号： H01S330

CPC分类号： H01S3/094 ,  H01S3/0675 ,  H01S3/08086 ,  H01S3/0812 ,  H01S3/094042 ,  H01S3/302

摘要： Optical pumping arrangements are provided for the broadband or multiple wavelength pumping of optical sources. Sources may be based on Raman gain media and may use multiple output couplers to couple out different wavelength ranges. Cascaded Raman resonator (CRR) configurations may also be used. Overlapping resonators at different wavelengths may be configured to share gain media, and may have separate portions in separate optical paths. Attenuation filters may also be used that are matched to the gain profile of a gain medium, to flatten the gain spectrum and allow equalization of gain to different output wavelengths. In one embodiment, polarization maintaining fiber is used to develop resonant conditions at different wavelengths in different polarization states. Wideband output gratings may be substituted for narrowband gratings to provide CRR configurations with a broader output band. Broadband amplification may also be provided by using a laser source operating in coherence collapse. The multiple wavelength pumping lends itself to a pumping arrangement in which sources at different wavelengths are combined into separate transmission/gain media such as the different fibers of an optical fiber cable.

摘要翻译： 提供了用于光源的宽波长或多波长泵浦的光泵浦装置。 源可以基于拉曼增益介质，并且可以使用多个输出耦合器耦合出不同的波长范围。 也可以使用级联拉曼谐振器（CRR）。 可以将不同波长的重叠谐振器配置成共享增益介质，并且可以在单独的光路中具有分离的部分。 还可以使用与增益介质的增益曲线匹配的衰减滤波器，以平坦化增益谱，并允许将增益均衡到不同的输出波长。 在一个实施例中，使用偏振保持光纤来发展不同偏振态的不同波长的谐振条件。 宽带输出光栅可以代替窄带光栅，以提供具有更宽输出频带的CRR配置。 也可以通过使用在相干塌陷中操作的激光源来提供宽带放大。 多波长泵浦本身适用于泵送装置，其中将不同波长的源组合成单独的传输/增益介质，例如光纤电缆的不同光纤。

公开(公告)号：US06301273B1

公开(公告)日：2001-10-09

申请号：US09734865

申请日：2000-12-11

申请人： Steven Sanders ,  Robert J. Lang ,  Robert G. Waarts

发明人： Steven Sanders ,  Robert J. Lang ,  Robert G. Waarts

IPC分类号： H01S330

CPC分类号： G02F1/3534 ,  G02F1/3558 ,  G02F1/39 ,  G02F2001/3542 ,  G02F2001/3546 ,  G02F2001/3548

摘要： A frequency conversion system includes at least one source providing a first near-IR wavelength output including a gain medium for providing high power amplification, such as double clad fiber amplifier, a double clad fiber laser or a semiconductor tapered amplifier to enhance the power output level of the near-IR wavelength output. The NFM device may be a difference frequency mixing (DFM) device or an optical parametric oscillation (OPO) device. Pump powers are gain enhanced by the addition of a rare earth amplifier or oscillator, or a Ra-man/Brillouin amplifier or oscillator between the high power source and the NFM device.

摘要翻译： 变频系统包括至少一个源，其提供包括用于提供高功率放大的增益介质的第一近红外波长输出，例如双包层光纤放大器，双包层光纤激光器或半导体锥形放大器，以增强功率输出电平 的近红外波长输出。 NFM装置可以是差分混频（DFM）装置或光参量振荡（OPO）装置。 通过在高功率源和NFM器件之间添加稀土放大器或振荡器，或Ra-man / Brillouin放大器或振荡器来增加泵浦功率。

公开(公告)号：US06301271B1

公开(公告)日：2001-10-09

申请号：US09734629

申请日：2000-12-11

申请人： Steven Sanders ,  Robert G. Waarts

发明人： Steven Sanders ,  Robert G. Waarts

IPC分类号： H01S330

CPC分类号： G02F1/3534 ,  G02F1/3558 ,  G02F1/39 ,  G02F2001/3542 ,  G02F2001/3546 ,  G02F2001/3548

摘要： A frequency conversion system comprises first and second gain sources providing first and second frequency radiation outputs where the second gain source receives as input the output of the first gain source and, further, the second gain source comprises a Raman or Brillouin gain fiber for wave shifting a portion of the radiation of the first frequency output into second frequency radiation output to provided a combined output of first and second frequencies. Powers are gain enhanced by the addition of a rare earth amplifier or oscillator, or a Raman/Brillouin amplifier or oscillator between the high power source and the NFM device. Further, polarization conversion using Raman or Brillouin wavelength shifting is provided to optimize frequency conversion efficiency in the NFM device.

摘要翻译： 一种变频系统包括提供第一和第二频率辐射输出的第一和第二增益源，其中第二增益源作为输入接收第一增益源的输出，此外，第二增益源包括用于波动的拉曼或布里渊增益光纤 第一频率的辐射的一部分输出到第二频率辐射输出以提供第一和第二频率的组合输出。 通过在高功率源和NFM器件之间添加稀土放大器或振荡器或拉曼/布里渊放大器或振荡器来增强功率。 此外，提供使用拉曼或布里渊波长移位的偏振转换以优化NFM器件中的频率转换效率。

公开(公告)号：US06282016B1

公开(公告)日：2001-08-28

申请号：US09452250

申请日：1999-12-01

申请人： Stuart MacCormack ,  Robert G. Waarts ,  Paul Freeman ,  Stephen G. Grubb

发明人： Stuart MacCormack ,  Robert G. Waarts ,  Paul Freeman ,  Stephen G. Grubb

IPC分类号： H01S300

CPC分类号： H01S3/06758 ,  H01S3/0078 ,  H01S3/06712 ,  H01S3/0675 ,  H01S3/2316 ,  H01S3/2333

摘要： A number of variations are provided of a device that provides an amplified single polarization optical signal. Each of these relies on the use of a non-polarization maintaining gain medium through which the signal is directed, and a polarization shifter and reflector that direct the signal back through the same gain medium with a shifted polarization state. An input polarization beamsplitter directs the returning optical signal away to an output, based on its shifted polarization state. The embodiments of the invention include the use of double-clad fiber. Multiple stages may be used to provide specific amplification parameters. In particular, a fiber with a relatively large mode field diameter may be used to enable high pulse power applications. Wavelength selective components are used in certain embodiments of the invention, to allow for wavelength selectivity, as well as a single polarization state, in amplifiers, lasers and amplified spontaneous emission (ASE).

摘要翻译： 提供了一种提供放大的单偏振光信号的装置的变型。 这些都依赖于使用信号引导的非偏振维持增益介质，以及偏振移位器和反射器，其将信号通过具有偏移偏振状态的相同增益介质引导回来。 输入偏振分束器基于其移动的偏振状态将返回光信号导向输出。 本发明的实施例包括使用双包层光纤。 可以使用多个阶段来提供特定的扩增参数。 特别地，可以使用具有相对大的模场直径的光纤来实现高脉冲功率应用。 在本发明的某些实施例中使用波长选择性分量，以便在放大器，激光器和放大的自发发射（ASE）中允许波长选择性以及单个极化状态。

公开(公告)号：US06229828B1

公开(公告)日：2001-05-08

申请号：US09123387

申请日：1998-07-27

申请人： Steven Sanders ,  Robert J. Lang ,  Robert G. Waarts

发明人： Steven Sanders ,  Robert J. Lang ,  Robert G. Waarts

IPC分类号： H01S310

CPC分类号： G02F1/3534 ,  G02F1/3558 ,  G02F1/39 ,  G02F2001/3542 ,  G02F2001/3546 ,  G02F2001/3548

摘要： Laser diode pumped mid-IR wavelength sources include at least one high power, near-IR wavelength, injection and/or sources wherein one or both of such sources may be tunable providing a pump wave output beam to a quasi-phase matched (QPM) nonlinear frequency mixing (NFM) device. The NFM device may be a difference frequency mixing (DFM) device or an optical parametric oscillation (OPO) device. Wavelength tuning of at least one of the sources advantageously provides the ability for optimizing pump or injection wavelengths to match the QPM properties of the NFM device enabling a broad range of mid-IR wavelength selectivity. Also, pump powers are gain enhanced by the addition of a rare earth amplifier or oscillator, or a Raman/Brillouin amplifier or oscillator between the high power source and the NFM device. Further, polarization conversion using Raman or Brillouin wavelength shifting is provided to optimize frequency conversion efficiency in the NFM device.

摘要翻译： 激光二极管泵浦中红外波长源包括至少一个高功率，近红外波长，注入和/或源，其中这些源中的一个或两个可以是可调谐的，以将泵浦波输出波束提供给准相位匹配（QPM） 非线性频率混合（NFM）装置。 NFM装置可以是差分混频（DFM）装置或光参量振荡（OPO）装置。 至少一个源的波长调谐有利地提供了优化泵浦或注入波长以匹配NFM器件的QPM特性的能力，从而实现宽范围的中红外波长选择性。 此外，通过在高功率源和NFM器件之间添加稀土放大器或振荡器或拉曼/布里渊放大器或振荡器来增加泵浦功率。 此外，提供使用拉曼或布里渊波长移位的偏振转换以优化NFM器件中的频率转换效率。

公开(公告)号：US5912910A

公开(公告)日：1999-06-15

申请号：US649560

申请日：1996-05-17

申请人： Steven Sanders ,  Robert J. Lang ,  Robert G. Waarts

发明人： Steven Sanders ,  Robert J. Lang ,  Robert G. Waarts

IPC分类号： G02F1/35 ,  G02F1/355 ,  G02F1/39 ,  H01S3/10

CPC分类号： G02F1/3534 ,  G02F1/39 ,  G02F1/3558 ,  G02F2001/3542 ,  G02F2001/3546 ,  G02F2001/3548

摘要： Laser diode pumped mid-IR wavelength systems include at least one high power, near-IR wavelength, injection and/or sources wherein one or both of such sources may be tunable providing a pump wave output beam to a quasi-phase matched (QPM) nonlinear frequency mixing (NFM) device. The NFM device may be a difference frequency mixing (DFM) device or an optical parametric oscillation (OPO) device. Wavelength tuning of at least one of the sources advantageously provides the ability for optimizing pump or injection wavelengths to match the QPM properties of the NFM device enabling a broad range of mid-IR wavelength selectivity. Also, pump powers are gain enhanced by the addition of a rare earth amplifier or oscillator, or a Raman/Brillouin amplifier or oscillator between the high power source and the NFM device. Further, polarization conversion using Raman or Brillouin wavelength shifting is provided to optimize frequency conversion efficiency in the NFM device.

摘要翻译： 激光二极管泵浦中红外波长系统包括至少一个高功率，近红外波长，注入和/或源，其中这些源中的一个或两个可以是可调谐的，以将泵浦波输出波束提供给准相位匹配（QPM） 非线性频率混合（NFM）装置。 NFM装置可以是差分混频（DFM）装置或光参量振荡（OPO）装置。 至少一个源的波长调谐有利地提供了优化泵浦或注入波长以匹配NFM器件的QPM特性的能力，从而实现宽范围的中红外波长选择性。 此外，通过在高功率源和NFM器件之间添加稀土放大器或振荡器或拉曼/布里渊放大器或振荡器来增加泵浦功率。 此外，提供使用拉曼或布里渊波长移位的偏振转换以优化NFM器件中的频率转换效率。