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1.发明授权公开(公告)号：US07545504B2
公开(公告)日：2009-06-09
申请号：US11539275
申请日：2006-10-06
CPC分类号： G01N21/45 , A61B3/102 , A61B3/1225 , A61B5/0066 , G01B9/02004 , G01B9/02027 , G01B9/02044 , G01B9/02091 , G01B2290/45 , G01B2290/70 , G01N21/23 , G01N2021/1787
摘要： Optical imaging systems are provided including a light source and a depolarizer. The light source is provided in a source arm of the optical imaging system. A depolarizer is coupled to the light source in the source arm of the optical imaging system and is configured to substantially depolarize the light from the light source. Related methods and controllers are also provided.
摘要翻译： 提供了包括光源和消偏振器的光学成像系统。 光源设置在光学成像系统的源臂中。 去偏振器耦合到光学成像系统的源极臂中的光源，并且被配置为基本上使来自光源的光去极化。 还提供了相关方法和控制器。
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公开(公告)号：US06813080B2
公开(公告)日：2004-11-02
申请号：US10356424
申请日：2003-01-31
IPC分类号： G02B518
CPC分类号： G02B5/1861 , G02B6/29325
摘要： The invention is directed to metal-free grating for use in wavelength optical communications, and in particular to metal-free, reflective immersed diffraction gratings. The gratings of the invention area made of at least a first material 1 of refractive index n1 and a second material of refractive index n2. Materials 1 and 2 must obey the Expressions: (I) n1>n2, (II) n1>&lgr;/2L>n2 for single diffracted order at Littrow, and (III) n2/n1
摘要翻译： 本发明涉及用于波长光通信的无金属光栅，特别涉及无金属的反射浸入衍射光栅。 本发明区域的光栅至少由折射率n1的第一材料1和折射率n2的第二材料制成。 材料1和2必须遵守Littrow处单个衍射级的表达式：（I）n1> n2，（II）n1>λ/ 2L> n2，（III）n2 / n1
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3.发明授权Cladding-pumped fiber with helical rare-earth-doped core for fiber lasers and amplifiers 失效用于光纤激光器和放大器的带有螺旋稀土掺杂芯的包层泵浦光纤公开(公告)号：US06650664B1
公开(公告)日：2003-11-18
申请号：US09681134
申请日：2001-01-19
申请人： Gerald T. Moore , John R. Marciante
发明人： Gerald T. Moore , John R. Marciante
IPC分类号： H01S330
CPC分类号： H01S3/06708 , H01S3/094003
摘要： A high power fiber laser/amplifier is comprised of a multi-mode rare-earth-doped helical core disposed within a cylindrical inner cladding. The inner cladding is enclosed within an outer cladding whereby the core effectively produces single-mode operation with a circularly polarized near-diffraction-limited beam quality output when pump radiation is injected into the inner cladding.
摘要翻译： 高功率光纤激光器/放大器由设置在圆柱形内包层内的多模稀土掺杂螺旋芯构成。 内包层被封闭在外包层内，由此当泵浦辐射被注入到内包层中时，核有效地产生具有圆偏振近衍射限制束质量输出的单模操作。
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4.发明申请METHOD AND APPARATUS FOR GENERATING HIGH POWER VISIBLE AND NEAR-VISIBLE LASER LIGHT 有权用于产生高功率可见光和可见光激光的方法和装置公开(公告)号：US20090225793A1
公开(公告)日：2009-09-10
申请号：US12400621
申请日：2009-03-09
申请人： John R. Marciante , Andrew T. Ryan
发明人： John R. Marciante , Andrew T. Ryan
CPC分类号： H01S3/302 , H01S3/06712 , H01S3/0675 , H01S3/094011 , H01S3/09408 , H01S3/109
摘要： A multimode-fiber Raman laser includes a pump source configured to provide optical radiation centered at a pump wavelength and characterized by a spectral bandwidth greater than 100 MHz and an oscillator resonant at an emission wavelength greater than the pump wavelength. The oscillator includes an input coupler optically aligned with the pump source and a multimode optical fiber optically coupled to the input coupler. The multimode optical fiber includes an input section having a fiber Bragg grating, an intracavity section of a predetermined length optically coupled to the input section, and an output section having a fiber Bragg grating. The oscillator also includes an output coupler optically coupled to the multimode optical fiber and configured to provide a laser output at the emission wavelength.
摘要翻译： 多模光纤拉曼激光器包括被配置为提供以泵浦波长为中心的光辐射的泵浦源，其特征在于大于100MHz的光谱带宽和在大于泵浦波长的发射波长处谐振的振荡器。 振荡器包括与泵浦光源对准的输入耦合器和与输入耦合器光耦合的多模光纤。 多模光纤包括具有光纤布拉格光栅的输入部分，与输入部分光耦合的预定长度的腔内部分，以及具有光纤布拉格光栅的输出部分。 振荡器还包括光耦合到多模光纤并被配置为提供发射波长的激光输出的输出耦合器。
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5.发明授权Method and apparatus for generating high power visible and near-visible laser light 有权用于产生高功率可见光和近可见激光的方法和装置公开(公告)号：US07949017B2
公开(公告)日：2011-05-24
申请号：US12400621
申请日：2009-03-09
申请人： John R. Marciante , Andrew T. Ryan
发明人： John R. Marciante , Andrew T. Ryan
IPC分类号： H01S3/30
CPC分类号： H01S3/302 , H01S3/06712 , H01S3/0675 , H01S3/094011 , H01S3/09408 , H01S3/109
摘要： A multimode-fiber Raman laser includes a pump source configured to provide optical radiation centered at a pump wavelength and characterized by a spectral bandwidth greater than 100 MHz and an oscillator resonant at an emission wavelength greater than the pump wavelength. The oscillator includes an input coupler optically aligned with the pump source and a multimode optical fiber optically coupled to the input coupler. The multimode optical fiber includes an input section having a fiber Bragg grating, an intracavity section of a predetermined length optically coupled to the input section, and an output section having a fiber Bragg grating. The oscillator also includes an output coupler optically coupled to the multimode optical fiber and configured to provide a laser output at the emission wavelength.
摘要翻译： 多模光纤拉曼激光器包括被配置为提供以泵浦波长为中心的光辐射的泵浦源，其特征在于大于100MHz的光谱带宽和在大于泵浦波长的发射波长处谐振的振荡器。 振荡器包括与泵浦光源对准的输入耦合器和与输入耦合器光耦合的多模光纤。 多模光纤包括具有光纤布拉格光栅的输入部分，与输入部分光耦合的预定长度的腔内部分，以及具有光纤布拉格光栅的输出部分。 振荡器还包括光耦合到多模光纤并被配置为提供发射波长的激光输出的输出耦合器。
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6.发明申请公开(公告)号：US20180269644A1
公开(公告)日：2018-09-20
申请号：US15543691
申请日：2016-01-25
CPC分类号： H01S3/06737 , H01S3/094007 , H01S3/09415 , H01S5/068 , H01S5/14 , H01S5/141 , H01S5/146 , H01S5/147 , H01S5/2036 , H01S5/4025 , H01S5/4062 , H01S5/4081 , H01S5/4087
摘要： Methods and apparatus for spectral narrowing and wavelength stabilization of broad-area lasers, such as an apparatus including a broad-area laser source configured to emit light along an emission axis in an emission pattern extending along the emission axis, and a single-mode fiber Bragg grating, such as a single-mode core incorporating a fiber Bragg grating embedded in a core of a dual-clad fiber, the single-mode fiber Bragg grating configured to spectrally selectively reflect back light from a sub-aperture portion of the emitted light to the broad-area laser source. The single mode core having the FBG is off-axis in comparison to the central axis of the double-clad fiber and allows for frequency stabilization of the broad area laser diode output improving its performance as pump laser for a doped fibre amplifier.
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公开(公告)号：US08044655B2
公开(公告)日：2011-10-25
申请号：US12114956
申请日：2008-05-05
IPC分类号： G01R23/16
CPC分类号： G01R29/027 , G01J11/00
摘要： An embodiment of the invention is directed to a pulse measuring system that measures a characteristic of an input pulse under test, particularly the pulse shape of a single-shot, nano-second duration, high shape-contrast optical or electrical pulse. An exemplary system includes a multi-stage, passive pulse replicator, wherein each successive stage introduces a fixed time delay to the input pulse under test, a repetitively-gated electronic sampling apparatus that acquires the pulse train including an entire waveform of each replica pulse, a processor that temporally aligns the replicated pulses, and an averager that temporally averages the replicated pulses to generate the pulse shape of the pulse under test. An embodiment of the invention is directed to a method for measuring an optical or an electrical pulse shape. The method includes the steps of passively replicating the pulse under test with a known time delay, temporally stacking the pulses, and temporally averaging the stacked pulses. An embodiment of the invention is directed to a method for increasing the dynamic range of a pulse measurement by a repetitively-gated electronic sampling device having a rated dynamic range capability, beyond the rated dynamic range of the sampling device; e.g., enhancing the dynamic range of an oscilloscope. The embodied technique can improve the SNR from about 300:1 to 1000:1. A dynamic range enhancement of four to seven bits may be achieved.
摘要翻译： 本发明的实施例涉及一种脉冲测量系统，其测量被测输入脉冲的特性，特别是单次，纳秒秒持续时间，高形状对比度光学或电脉冲的脉冲形状。 示例性系统包括多级无源脉冲复制器，其中每个连续级向被测输入脉冲引入固定时间延迟，重复门控电子采样装置，其获取包括每个复制脉冲的整个波形的脉冲串， 时间上对准复制脉冲的处理器和对复制脉冲进行时间平均以产生被测脉冲的脉冲形状的平均器。 本发明的实施例涉及一种用于测量光学或电脉冲形状的方法。 该方法包括以已知的时间延迟被动地复制被测脉冲的步骤，在时间上叠加脉冲，并对堆叠的脉冲进行时间平均。 本发明的实施例涉及一种用于通过具有超过采样装置的额定动态范围的额定动态范围能力的重复门控电子采样装置来增加脉冲测量的动态范围的方法; 例如，增强示波器的动态范围。 所体现的技术可以将SNR从约300:1提高到1000:1。 可以实现四到七位的动态范围增强。
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公开(公告)号：US07545304B1
公开(公告)日：2009-06-09
申请号：US11896617
申请日：2007-09-04
申请人： Hui Wu , Yunliang Zhu , Jonathan D. Zuegel , John R. Marciante
发明人： Hui Wu , Yunliang Zhu , Jonathan D. Zuegel , John R. Marciante
IPC分类号： H03M1/66
CPC分类号： G06F1/022 , H03K4/026 , H03K5/133 , H03K5/14 , H04B1/7174
摘要： A distributed arbitrary waveform generator (DAWG) synthesizes the target waveform using a series of narrow pulses generated by a number of pulse generators. To achieve this, it uses an input trigger signal to control all the pulse generators, each of which generates a narrow pulse (impulses) at a specific sample time, and then all the impulses are combined to generate the output waveform. The input trigger signal is distributed to each pulse generator by a trigger distribution network. Impulses generated by pulse generators can be tuned in both pulse amplitude and width, and the spacing between them can be tuned by the trigger distribution network. Therefore the waveforms generated are completely reconfigurable.
摘要翻译： 分布式任意波形发生器（DAWG）使用由多个脉冲发生器产生的一系列窄脉冲来合成目标波形。 为了实现这一点，它使用输入触发信号来控制所有脉冲发生器，每个脉冲发生器在特定采样时间产生窄脉冲（脉冲），然后将所有脉冲组合以产生输出波形。 输入触发信号通过触发分配网络分配给每个脉冲发生器。 脉冲发生器产生的脉冲可以在脉冲幅度和宽度上进行调节，并且它们之间的间距可以通过触发分配网络来调节。 因此，所生成的波形是完全可重构的。
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公开(公告)号：US20090072811A1
公开(公告)日：2009-03-19
申请号：US12114956
申请日：2008-05-05
IPC分类号： G01R23/16
CPC分类号： G01R29/027 , G01J11/00
摘要： An embodiment of the invention is directed to a pulse measuring system that measures a characteristic of an input pulse under test, particularly the pulse shape of a single-shot, nano-second duration, high shape-contrast optical or electrical pulse. An exemplary system includes a multi-stage, passive pulse replicator, wherein each successive stage introduces a fixed time delay to the input pulse under test, a repetitively-gated electronic sampling apparatus that acquires the pulse train including an entire waveform of each replica pulse, a processor that temporally aligns the replicated pulses, and an averager that temporally averages the replicated pulses to generate the pulse shape of the pulse under test. An embodiment of the invention is directed to a method for measuring an optical or an electrical pulse shape. The method includes the steps of passively replicating the pulse under test with a known time delay, temporally stacking the pulses, and temporally averaging the stacked pulses. An embodiment of the invention is directed to a method for increasing the dynamic range of a pulse measurement by a repetitively-gated electronic sampling device having a rated dynamic range capability, beyond the rated dynamic range of the sampling device; e.g., enhancing the dynamic range of an oscilloscope. The embodied technique can improve the SNR from about 300:1 to 1000:1. A dynamic range enhancement of four to seven bits may be achieved.
摘要翻译： 本发明的实施例涉及一种脉冲测量系统，其测量被测输入脉冲的特性，特别是单次，纳秒秒持续时间，高形状对比度光学或电脉冲的脉冲形状。 示例性系统包括多级无源脉冲复制器，其中每个连续级向被测输入脉冲引入固定时间延迟，重复门控电子采样装置，其获取包括每个复制脉冲的整个波形的脉冲串， 时间上对准复制脉冲的处理器和对复制脉冲进行时间平均以产生被测脉冲的脉冲形状的平均器。 本发明的实施例涉及一种用于测量光学或电脉冲形状的方法。 该方法包括以已知的时间延迟被动地复制被测脉冲的步骤，在时间上叠加脉冲，并对堆叠的脉冲进行时间平均。 本发明的实施例涉及一种用于通过具有超过采样装置的额定动态范围的额定动态范围能力的重复门控电子采样装置来增加脉冲测量的动态范围的方法; 例如，增强示波器的动态范围。 所体现的技术可以将SNR从约300:1提高到1000:1。 可以实现四到七位的动态范围增强。
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公开(公告)号：US20080317071A1
公开(公告)日：2008-12-25
申请号：US11765645
申请日：2007-06-20
申请人： Weihua Guan , John R. Marciante
发明人： Weihua Guan , John R. Marciante
IPC分类号： H01S3/067
CPC分类号： H01S3/0675 , H01S3/06712 , H01S3/08031 , H01S3/0809 , H01S3/0941 , H01S3/1618
摘要： An embodiment of the invention is directed to a dual-single-frequency fiber laser. A linear cavity formed by a short length of highly doped optical waveguide with distributed Bragg reflectors (DBRs) at respective ends, one of which is a polarization-maintaining PM-DBR, and a suitable pump source, provides orthogonally polarized dual-single-frequency laser emissions. Operating characteristics of the laser may be customized by appropriate design of the PM-DBR. Wavelength spacing between dual lasing wavelengths can be controlled via the birefringence parameters of the PM-DBR. Laser emission wavelengths may be controlled as a function of the period of the PM-DBR. Output power may be scaled upward by optimizing the PM-DBR reflectance and via pump power adjustment. Relaxation-oscillation effects (noise peaks) may be reduced by using a negative-feedback circuit on the pump laser. The use of a polarization-filtering component in regard to the orthogonal polarizations of the dual emissions enable laser operation in a single-polarization-single-frequency regime.
摘要翻译： 本发明的实施例涉及一种双单频光纤激光器。 由具有分布布拉格反射器（DBR）的短长度的高掺杂光波导形成的线性空穴，其中一个是偏振保持PM-DBR，以及合适的泵浦源，提供正交极化的双单频 激光发射。 可以通过PM-DBR的适当设计来定制激光器的操作特性。 可以通过PM-DBR的双折射参数来控制双激光波长之间的波长间隔。 激光发射波长可以作为PM-DBR的周期的函数来控制。 通过优化PM-DBR反射率和通过泵浦功率调整，可以向上扩展输出功率。 通过在泵浦激光器上使用负反馈电路可以减少放松振荡效应（噪声峰值）。 关于双重发射的正交极化的偏振滤波部件的使用使得能够在单极化 - 单频率状态下进行激光操作。
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