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21. 发明申请

US20150214690A1 Q-SWITCHED OSCILLATOR SEED-SOURCE FOR MOPA LASER ILLUMINATOR APPARATUS AND METHOD 有权
标题翻译：用于MOPA激光照明器的Q开关振荡器种子和方法
公开(公告)号：US20150214690A1
公开(公告)日：2015-07-30
申请号：US14596020
申请日：2015-01-13
申请人： Lockheed Martin Corporation
发明人： Matthias P. Savage-Leuchs , Christian E. Dilley , Charles A. Lemaire
IPC分类号： H01S3/067 , B60Q1/00 , H01S3/115 , H01S3/102 , H01S3/094 , H01S3/0941
CPC分类号： H01S3/06758 , B60Q1/0076 , H01S3/06704 , H01S3/06712 , H01S3/06716 , H01S3/0675 , H01S3/06791 , H01S3/094003 , H01S3/094011 , H01S3/094053 , H01S3/0941 , H01S3/1022 , H01S3/113 , H01S3/115 , H01S3/127 , H01S3/2316 , H01S5/146 , H01S2301/03
摘要： An apparatus, method and system that uses a Q-switched laser or a Q-seed source for a seed pulse signal having a controlled high-dynamic-range amplitude that avoids and/or compensates for pulse steepening in high-gain optical-fiber and/or optical-rod amplification of optical pulses. Optionally, the optical output is used for LIDAR or illumination purposes (e.g., for image acquisition). In some embodiments, well-controlled pulse shapes are obtained having a wide dynamic range, long duration, and not-too-narrow linewidth. In some embodiments, upon the opening of a Q-switch in an optical cavity having a gain medium, the amplification builds relatively slowly, wherein each round trip through the gain medium increases the amplitude of the optical pulse. Other embodiments use quasi-Q-switch devices or a plurality of amplitude modulators to obtain Q-seed pulses. These configurations provide optical pulses having wide dynamic ranges that ameliorate problems of pulse steepening, non-linear spectral broadening and the like in very-high-power MOPA devices.
摘要翻译：一种使用Q开关激光器或Q种子源用于具有受控的高动态范围幅度的种子脉冲信号的装置，方法和系统，其避免和/或补偿高增益光纤中的脉冲陡峭，以及 /或光学脉冲的光棒放大。可选地，光输出用于LIDAR或照明目的（例如，用于图像采集）。在一些实施例中，获得具有宽动态范围，长持续时间和不太窄线宽的良好控制的脉冲形状。在一些实施例中，在具有增益介质的光学腔中打开Q开关后，放大相对缓慢地建立，其中通过增益介质的每次往返都增加了光脉冲的幅度。其他实施例使用准Q开关器件或多个幅度调制器来获得Q-种子脉冲。这些配置提供具有宽动态范围的光脉冲，其可改善非常高功率的MOPA器件中的脉冲陡峭度，非线性光谱变宽等问题。

22. 发明申请

US20150180194A1 CONTROLLABLE MULTI-WAVELENGTH LASER SOURCE 审中-公开
标题翻译：可控多波长激光源
公开(公告)号：US20150180194A1
公开(公告)日：2015-06-25
申请号：US14617028
申请日：2015-02-09
申请人： IMRA AMERICA, INC.
发明人： Jingzhou XU , Gyu CHO
IPC分类号： H01S3/067 , G02B5/30 , G02F1/35 , H01S3/10 , H01S3/00
CPC分类号： H01S3/06712 , G02B5/3083 , G02F1/353 , G02F1/3544 , G02F2001/3546 , H01S3/0092 , H01S3/067 , H01S3/06754 , H01S3/10053 , H01S3/10061
摘要： In at least one embodiment a laser system includes a fiber laser source, a polarization controller and a wavelength converter. The relative power distribution between a pump wavelength and a signal wavelength is controllable using the polarization controller. An optional phase compensator is used to control polarization state of the output laser beam. In various embodiments the relative power distribution among multiple wavelengths may be controlled over a range of at least about 100:1.
摘要翻译：在至少一个实施例中，激光系统包括光纤激光源，偏振控制器和波长转换器。使用偏振控制器控制泵波长和信号波长之间的相对功率分布。可选的相位补偿器用于控制输出激光束的偏振状态。在各种实施例中，可以在至少约100:1的范围内控制多个波长之间的相对功率分布。

23. 发明申请

US20150030039A1 BROADBAND SHORT PULSE FIBER LASERS CAPABLE OF GENERATING OUTPUT SPECTRA BROADER THAN GAIN BANDWIDTH 有权
标题翻译：宽带短脉冲光纤激光器可以产生输出光谱仪，而不是增益带宽
公开(公告)号：US20150030039A1
公开(公告)日：2015-01-29
申请号：US14377841
申请日：2013-02-11
申请人： Cornell University
发明人： Frank W. Wise , Andy Chong , William Renninger
IPC分类号： H01S3/067 , H01S3/11 , H01S3/16 , H01S3/08
CPC分类号： H01S3/06791 , H01S3/0014 , H01S3/06712 , H01S3/06725 , H01S3/0675 , H01S3/08027 , H01S3/1118 , H01S3/1618 , H01S2301/08
摘要： Implementations and examples of fiber lasers based on fiber laser cavity designs that produce self-similar pulses (“similaritons”) to achieve a pulse spectral bandwidth greater than a gain spectral bandwidth based on a spectral broadening fiber segment and a spectral filter to ensure the proper similariton conditions.
摘要翻译：基于光纤激光腔设计的光纤激光器的实现和示例，其产生自相似脉冲（“相似性”），以实现基于光谱增宽光纤段和光谱滤波器的基于增益光谱带宽的脉冲光谱带宽，以确保适当相似条件。

24. 发明授权

US08908721B2 Environmentally stable optical fiber mode-locked laser generating device having an achromatic quarter wave plate 有权
标题翻译：具有无色四分之一波片的环境稳定的光纤锁模激光发生装置
公开(公告)号：US08908721B2
公开(公告)日：2014-12-09
申请号：US13516949
申请日：2010-12-15
申请人： Tai-Hyun Yoon , Gwang-Hoon Jang
发明人： Tai-Hyun Yoon , Gwang-Hoon Jang
IPC分类号： H01S3/30 , H01S3/11 , H01S3/067 , H01S3/10 , H01S3/08
CPC分类号： H01S3/1118 , H01S3/06712 , H01S3/0675 , H01S3/08054 , H01S3/10061
摘要： An Environmentally stable optical fiber mode-locked laser generating device having an achromatic quarter wave plate is disclosed. An optical fiber unit is formed of a polarization maintaining (PM) optical fiber, and a Bragg grating is formed on a first region from one end in direction to the other end, a gain material is doped on a core of a remaining second region. An optical coupling unit provides a pump laser input to one end of the optical fiber unit, and outputs a laser input from the optical fiber unit. A lens unit converts a laser output from the other end of the optical fiber unit and focuses the laser on a certain regime. A polarization control unit includes an achromatic quarter wave plate (AQWP) which is disposed between the lenses constituting the lens unit and made by laminating two quarter wave plates (QWPs) such that fast-axes of the QWPs are orthogonal to each other, and controls mode-locking of the laser and spectral bandwidth by adjusting an angle of the AQWP with respect to a fast-axis or a slow-axis of the optical fiber unit. A saturable absorbing unit saturably absorbs and reflects the laser passed through the second lens, resulting in mode-locking.
摘要翻译：公开了一种具有无色四分之一波片的环境稳定的光纤锁模激光发生装置。光纤单元由偏振维持（PM）光纤形成，并且布拉格光栅形成在从方向一端到另一端的第一区域上，增益材料掺杂在剩余的第二区域的芯上。光耦合单元为光纤单元的一端提供泵浦激光输入，并从光纤单元输出激光输入。透镜单元将来自光纤单元的另一端的激光输出转换成一定的状态。偏振控制单元包括一个非彩色四分之一波片（AQWP），它设置在构成透镜单元的透镜之间，并通过层叠两个四分之一波片（QWP）制成，使得QWP的快轴彼此正交，并且控制通过调整AQWP相对于光纤单元的快轴或慢轴的角度来激光的模式锁定和光谱带宽。饱和吸收单元可饱和吸收并反射穿过第二透镜的激光，导致锁模。

25. 发明授权

US08854713B2 Power selective optical filter devices and optical systems using same 有权
标题翻译：功率选择性滤光器件和使用其的光学系统
公开(公告)号：US08854713B2
公开(公告)日：2014-10-07
申请号：US13464245
申请日：2012-05-04
申请人： Jeffrey P. Koplow
发明人： Jeffrey P. Koplow
IPC分类号： G02B26/00 , G02B6/27 , H01S3/11 , H01S3/00 , H01S3/067
CPC分类号： H01S3/0675 , G02B6/274 , H01S3/0057 , H01S3/06712 , H01S3/06758 , H01S3/06791 , H01S3/1112 , H01S2301/02
摘要： In an embodiment, a power selective optical filter device includes an input polarizer for selectively transmitting an input signal. The device includes a wave-plate structure positioned to receive the input signal, which includes at least one substantially zero-order, zero-wave plate. The zero-order, zero-wave plate is configured to alter a polarization state of the input signal passing in a manner that depends on the power of the input signal. The zero-order, zero-wave plate includes an entry and exit wave plate each having a fast axis, with the fast axes oriented substantially perpendicular to each other. Each entry wave plate is oriented relative to a transmission axis of the input polarizer at a respective angle. An output polarizer is positioned to receive a signal output from the wave-plate structure and selectively transmits the signal based on the polarization state.
摘要翻译：在一个实施例中，功率选择性滤光器装置包括用于选择性地传输输入信号的输入偏振器。该装置包括波片结构，其定位成接收输入信号，其包括至少一个基本为零级的零波片。零级零波片被配置为以取决于输入信号的功率的方式改变输入信号的偏振状态。零级零波片包括各自具有快轴的进出波片，其中快轴基本上彼此垂直。每个进入波片相对于输入偏振器的透射轴以相应的角度定向。输出偏振器被定位成接收从波片结构输出的信号，并且基于偏振状态选择性地发送信号。

26. 发明授权

US08787410B2 Compact, coherent, high brightness light sources for the mid and far IR 有权
标题翻译：紧凑，连贯，高亮度的光源，适用于中远红外线
公开(公告)号：US08787410B2
公开(公告)日：2014-07-22
申请号：US13026762
申请日：2011-02-14
申请人： Martin Fermann
发明人： Martin Fermann
IPC分类号： H01S3/30
CPC分类号： H01S3/06725 , B23K26/352 , B23K26/361 , B23K26/362 , H01S3/06712 , H01S3/06741 , H01S3/0675 , H01S3/06754 , H01S3/06791 , H01S3/10015 , H01S3/10092 , H01S3/1112 , H01S3/1118 , H01S3/1608 , H01S3/1616
摘要： Compact high brightness light sources for the mid and far IR spectral region, and exemplary applications are disclosed based on passively mode locked Tm fiber comb lasers. In at least one embodiment the coherence of the comb sources is increased in a system utilizing an amplified single-frequency laser to pump the Tm fiber comb laser. The optical bandwidth generated by the passively mode locked Tm fiber comb laser is further decreased by using simultaneous 2nd and 3rd order dispersion compensation using either appropriate chirped fiber Bragg gratings for dispersion compensation, or fibers with appropriately selected values of 2nd and 3rd order dispersion. Fibers with large anomalous values of third order dispersion, or fibers with large numerical apertures, for example fibers having air-holes formed in the fiber cladding may be utilized.
摘要翻译：基于被动模式锁定的Tm光纤梳状激光器公开了用于中红外光谱区域和远红外光谱区域的紧凑型高亮度光源，以及示例性应用。在至少一个实施例中，在使用放大的单频激光器来泵浦Tm纤维梳状激光器的系统中，梳状源的相干性增加。通过使用用于色散补偿的适当的啁啾光纤布拉格光栅或具有适当选择的二阶和三阶色散值的光纤，通过使用同时的二次和三阶色散补偿来进一步减少由被动模式锁定的Tm光纤梳状激光器产生的光学带宽。可以使用具有三阶分散的大异常值的纤维或具有大数值孔径的纤维，例如在纤维包层中形成具有空气孔的纤维。

27. 发明授权

US08724215B2 Optical pulse source 有权
标题翻译：光脉冲源
公开(公告)号：US08724215B2
公开(公告)日：2014-05-13
申请号：US13797665
申请日：2013-03-12
申请人： Fianium Ltd.
发明人： John Redvers Clowes , Anatoly Borisovich Grudinin , Ian Michael Godfrey , Kestutis Vysniauskas
IPC分类号： H01S3/23 , H01S3/16 , H01S3/109
CPC分类号： H01S3/11 , G02F1/383 , H01S3/005 , H01S3/0057 , H01S3/0092 , H01S3/067 , H01S3/06712 , H01S3/06754 , H01S3/06758 , H01S3/109 , H01S3/1618 , H01S3/2308
摘要： The invention can include an apparatus for producing optical pulses, comprising an oscillator for producing optical pulses at a first optical pulse repetition frequency, the optical pulses having a first wavelength; a first optical fiber amplifier; a second optical fiber amplifier; a pulse picker located between the first and second optical fiber amplifiers, the pulse picker operable to reduce the optical pulse repetition frequency of optical pulses, wherein the first amplifier amplifies optical pulses at the first optical pulse repetition frequency and the second amplifier amplifies optical pulses at a reduced optical pulse repetition frequency that is less than the first optical pulse repetition frequency; a nonlinear optical fiber receiving amplified optical pulses having the reduced optical pulse repetition frequency and the first wavelength to produce, at the reduced optical pulse frequency, optical pulses that include one or more nonlinearly produced wavelengths different than the first wavelength; and wherein the pulse picker and the first and second optical fiber amplifiers are located between the oscillator and the nonlinear optical fiber.
摘要翻译：本发明可以包括用于产生光脉冲的装置，包括用于以第一光脉冲重复频率产生光脉冲的振荡器，所述光脉冲具有第一波长; 第一光纤放大器; 第二光纤放大器; 位于第一和第二光纤放大器之间的脉冲拾取器，脉冲拾取器可操作以减少光脉冲的光脉冲重复频率，其中第一放大器以第一光脉冲重复频率放大光脉冲，第二放大器放大光脉冲减少的光脉冲重复频率小于第一光脉冲重复频率; 接收具有减小的光脉冲重复频率和第一波长的放大的光脉冲的非线性光纤，以减小的光脉冲频率产生包括一个或多个非线性产生的不同于第一波长的波长的光脉冲; 并且其中所述脉冲拾取器和所述第一和第二光纤放大器位于所述振荡器和所述非线性光纤之间。

28. 发明申请

US20140105233A1 APPARATUS FOR GENERATING SINGLE-POLARIZATION MODE-LOCKED LASER CAPABLE OF ENERGY CONTROL 有权
标题翻译：用于产生能量控制的单极化模式锁定激光器的装置
公开(公告)号：US20140105233A1
公开(公告)日：2014-04-17
申请号：US14123550
申请日：2012-05-31
申请人： Tai-Hyun Yoon
发明人： Tai-Hyun Yoon
IPC分类号： H01S3/067
CPC分类号： H01S3/06712 , H01S3/06725 , H01S3/0675 , H01S3/08059 , H01S3/09415 , H01S3/10061 , H01S3/1118 , H01S3/1618
摘要： Provided is an apparatus for generating a single-polarization mode-locked laser capable of energy control. The apparatus for generating a single-polarization mode-locked laser is configured to adjust at least one of a focal length of a lens focusing laser light on a semiconductor saturable absorber mirror (SESAM) functioning as a saturable absorber, power of pump laser light, and reflectivity of an output coupler (OC) to set fluence, which is defined as energy density per unit area of the laser light incident on the saturable absorber, to be greater than reference fluence, which is energy density per unit area of the laser light incident on the saturable absorber when reflectivity of the saturable absorber is a maximum. Accordingly, it is possible to generate a single-polarization mode-locked laser, of which energy can be controlled, without generating multiple pulses.
摘要翻译：提供了一种用于产生能量控制的单偏振锁模激光器的装置。用于产生单偏振模式锁定激光器的装置被配置为调节透镜聚焦激光的焦距中的至少一个在用作可饱和吸收体的半导体可饱和吸收镜（SESAM），泵浦激光的功率，输出耦合器（OC）的反射率设定为入射到饱和吸收体上的激光的每单位面积的能量密度的能量密度大于参考注量，该参考通量是激光单位面积的能量密度当可饱和吸收体的反射率最大时，在可饱和吸收体上的事件。因此，可以产生能够控制能量而不产生多个脉冲的单偏振锁模激光器。

29. 发明申请

US20140104677A1 SOURCE OF OPTICAL PULSES 有权
标题翻译：光学脉冲源
公开(公告)号：US20140104677A1
公开(公告)日：2014-04-17
申请号：US13797640
申请日：2013-03-12
申请人： John Redvers Clowes , Anatoly Borisovich Grudinin , Ian Michael Godfrey , Kestutis Vysniauskas
发明人： John Redvers Clowes , Anatoly Borisovich Grudinin , Ian Michael Godfrey , Kestutis Vysniauskas
IPC分类号： H01S3/11
CPC分类号： H01S3/11 , G02F1/383 , H01S3/005 , H01S3/0057 , H01S3/0092 , H01S3/067 , H01S3/06712 , H01S3/06754 , H01S3/06758 , H01S3/109 , H01S3/1618 , H01S3/2308
摘要： The invention can include an apparatus for producing optical pulses, comprising an oscillator for producing optical pulses at a first optical pulse repetition frequency, the optical pulses having a first frequency of light; a pulse picker for receiving optical pulses having the first optical pulse repetition frequency and operable to reduce the optical pulse repetition frequency to produce optical pulses having the first frequency and a reduced optical pulse repetition frequency that is less than the first optical pulse repetition frequency; an optical fiber receiving optical pulses having the reduced optical pulse repetition frequency and first frequency, to nonlinearly produce light that includes a frequency that is twice the first frequency; and an Ytterbium doped fiber amplifier in optical communication with the pulse picker and the optical fiber and located between the pulse picker and the oscillator.
摘要翻译：本发明可以包括用于产生光脉冲的装置，包括用于以第一光脉冲重复频率产生光脉冲的振荡器，所述光脉冲具有第一频率的光; 用于接收具有第一光脉冲重复频率的光脉冲的脉冲拾取器，可用于减小光脉冲重复频率以产生具有小于第一光脉冲重复频率的第一频率和降低的光脉冲重复频率的光脉冲; 接收具有降低的光脉冲重复频率和第一频率的光脉冲的光纤，以非线性地产生包括第一频率的两倍的频率的光; 和掺镱光纤放大器，与脉冲拾取器和光纤进行光通信，并位于脉冲拾取器和振荡器之间。

30. 发明授权

US08605768B2 Laser apparatus, driving method of the same and optical tomographic imaging apparatus 有权
标题翻译：激光装置，其驱动方法和光学断层成像装置
公开(公告)号：US08605768B2
公开(公告)日：2013-12-10
申请号：US12864574
申请日：2009-05-11
申请人： Kentaro Furusawa , Natsuhiko Mizutani , Kazuhide Miyata
发明人： Kentaro Furusawa , Natsuhiko Mizutani , Kazuhide Miyata
IPC分类号： H01S3/083
CPC分类号： H01S3/06791 , G01B9/02014 , G01B9/02091 , H01S3/06712 , H01S3/06725 , H01S3/1109 , H01S5/0657 , H01S5/1071 , H01S5/146
摘要： The present invention provides a laser apparatus capable of improving a scan speed and achieving a scan rate equal to or more than 1 MHz, and an optical tomographic imaging apparatus using the laser apparatus as a light source. The laser apparatus includes a ring resonator, the ring resonator having a structure in which a first modulator, a normal dispersion region, a second modulator and an anomalous dispersion region are arranged in this order, and in this arrangement, a gain medium is included, and being configured so that modulation with respect to the second modulator can be caused to be phase modulation by periodically superimposing phase modulation on modulation with respect to the first modulator.
摘要翻译：本发明提供能够提高扫描速度并实现1MHz以上的扫描速度的激光装置，以及使用该激光装置作为光源的光学断层图像摄像装置。激光装置包括环形谐振器，环状谐振器具有这样的结构，其中第一调制器，正常色散区域，第二调制器和异常色散区域按此顺序排列，并且在该布置中，包括增益介质，并且被配置为使得相对于第二调制器的调制可以通过相对于第一调制器的调制周期性地叠加相位调制来进行相位调制。

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