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公开(公告)号：US07440174B2
公开(公告)日：2008-10-21
申请号：US11361352
申请日：2006-02-24
CPC分类号： H01S3/06754 , H01S3/005 , H01S3/10007 , H01S3/1307 , H01S3/2383
摘要： An optical beam combiner and a related method for its operation, in which multiple coherent input beams are directed onto a diffractive optical element (DOE) along directions corresponding to diffraction orders of the DOE, such that the DOE generates a single output beam in a direction corresponding to a desired diffraction order, and suppresses outputs in directions corresponding to unwanted diffraction orders. The phases of the input beams are actively controlled to ensure and maintain the condition that only a single diffraction mode is present in the output of the DOE.
摘要翻译： 一种用于其操作的光束组合器和相关方法，其中多个相干输入光束沿着与DOE的衍射级相对应的方向被引导到衍射光学元件（DOE）上，使得DOE沿着方向产生单个输出光束 对应于期望的衍射级，并且抑制与不想要的衍射级相对应的方向的输出。 输入光束的相位被主动地控制，以确保和保持在DOE的输出中仅存在单个衍射模式的条件。
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公开(公告)号：US07502395B2
公开(公告)日：2009-03-10
申请号：US11500661
申请日：2006-08-08
CPC分类号： H01S3/2383 , G01J9/00 , H01S3/0085 , H01S3/06754 , H01S3/09415 , H01S3/10015 , H01S3/10053
摘要： A pulsed coherent fiber array laser system that includes a beam generating sub-system that provides a signal pulse beam having pulses of the desired duration that is split into several fiber channels. Optical leakage between the pulses in each split beam is measured and locked to a reference beam by a phase sensing circuit and phase adjusters so that the phase of each fiber pulsed beam is aligned with the phase of the reference beam. A pulse clipper or filter is employed to remove the pulses in the fiber beams so that they do not saturate the phase sensing circuit. The beam generating sub-system can employ any suitable combination of devices to generate the signal beam and the reference beam, including continuous wave master oscillators, amplitude modulators, frequency shifters, injection seed oscillators, Q-switched lasers, reference oscillators, frequency lockers, wavelength division multiplexers, time gated switches, etc.
摘要翻译： 一种脉冲相干光纤阵列激光系统，其包括光束产生子系统，其提供具有被分割成若干光纤通道的期望持续时间的脉冲的信号脉冲光束。 通过相位检测电路和相位调整器测量每个分束中的脉冲之间的光学泄漏并将其锁定到参考光束，使得每个光纤脉冲光束的相位与参考光束的相位对准。 使用脉冲削波器或滤波器来去除光纤束中的脉冲，使得它们不会使相位感测电路饱和。 光束产生子系统可以采用任何合适的设备组合来产生信号光束和参考光束，包括连续波主振荡器，幅度调制器，移相器，注入种子振荡器，Q开关激光器，参考振荡器，频率锁存器， 波分复用器，时间门控开关等
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公开(公告)号：US20110221641A1
公开(公告)日：2011-09-15
申请号：US12720107
申请日：2010-03-09
申请人： Robert Rex Rice
发明人： Robert Rex Rice
IPC分类号： H01Q1/00
摘要： An antenna system including at least one fiber antenna element having a semiconductor core and an outer cladding layer, where the core has a higher index of refraction than the cladding layer. A pump source provides pump light to the cladding layer in a manner that allows the pump light to propagate down the cladding layer to be absorbed by the core to generate photo-carriers in the core. An antenna circuit is electrically coupled to the core and provides one or both of an RF signal to the core for transmission purposes or receiving an RF signal from the core for reception purposes.
摘要翻译： 一种天线系统，包括具有半导体芯和外包层的至少一个光纤天线元件，其中芯具有比包覆层更高的折射率。 泵浦源以允许泵浦光沿着包层向下传播以被芯吸收的方式向包层提供泵浦光，以在芯中产生光载流子。 天线电路电耦合到核心，并且为了传输目的而向核心提供一个或两个RF信号，或者为了接收目的从核心接收RF信号。
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公开(公告)号：US07822077B2
公开(公告)日：2010-10-26
申请号：US11898515
申请日：2007-09-13
申请人： Robert Rex Rice
发明人： Robert Rex Rice
IPC分类号： H01S3/30
CPC分类号： G02B6/03638 , G02B6/03694 , G02B2006/1208 , H01S3/06754 , H01S3/094007 , H01S3/09403 , H01S3/1616 , H01S2303/00
摘要： An optical fiber amplifier includes a laser pump source for generating laser pump light; a fiber including an inner cladding layer optically coupled to a laser pump source for receiving laser pump light; a large mode area (LMA) core surrounded by the inner cladding, the LMA core including a confined region having a predetermined doping concentration of rare-earth ions for undergoing excitation to generate laser light when pumped by the laser pump light; and an outer cladding layer surrounding the inner cladding layer for substantially confining the laser pump light to the inner cladding and the LMA core. In a method of forming the optical fiber amplifier, a ratio of an area of the confined region to an area of the LMA core, and the predetermined doping concentration of the rare earth ions are selected so as to achieve a quantum efficiency (QE) gain factor of approximately 2, but such that the heat dissipation per unit length can be controlled by adjusting the area of the confined region.
摘要翻译： 光纤放大器包括用于产生激光泵浦光的激光泵浦源; 光纤，其包括光学耦合到用于接收激光泵浦光的激光泵浦源的内包层; 由内包层围绕的大模面积（LMA）芯，LMA芯包括具有预定掺杂浓度的稀土离子的受限区域，用于经激励以在通过激光泵浦光泵浦时产生激光; 以及围绕内包层的外包层，用于将激光泵浦光基本上限制在内包层和LMA芯上。 在形成光纤放大器的方法中，选择限制区域的面积与LMA芯的面积的比率和稀土离子的预定掺杂浓度，以获得量子效率（QE）增益 因子约为2，但是通过调整限制区域的面积可以控制每单位长度的散热。
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公开(公告)号：US20080170289A1
公开(公告)日：2008-07-17
申请号：US11653818
申请日：2007-01-16
IPC分类号： H01S3/30
CPC分类号： H01S3/30 , H01S3/042 , H01S3/0632 , H01S3/09408 , H01S3/09415
摘要： A Raman waveguide amplifier includes a waveguide comprising a core of a Raman-active medium dimensioned and configured as a self-imaging multimode waveguide. At least one input signal is coupled into the core at a wavelength within a Raman gain spectrum of the Raman-active medium relative to at least one pump beam. The pump beam is coupled into the core so as to amplify the at least one input signal via stimulated Raman scattering to provide an output signal corresponding to an amplified replica of the at least one input signal.
摘要翻译： 拉曼波导放大器包括波导，其包括尺寸为并且被配置为自成像多模波导的拉曼有源介质的核心。 至少一个输入信号以相对于至少一个泵浦光束的拉曼活性介质的拉曼增益光谱内的波长耦合到芯中。 泵浦光束耦合到核心中，以便通过受激拉曼散射放大至少一个输入信号，以提供对应于至少一个输入信号的放大副本的输出信号。
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公开(公告)号：US08089632B2
公开(公告)日：2012-01-03
申请号：US12135626
申请日：2008-06-09
IPC分类号： G01B9/02
CPC分类号： G01N29/2418 , G01N21/1702 , G01N21/39 , G01N21/718 , G01N21/94 , G01N29/4454 , G01N2291/017
摘要： Systems and methods are provided for detecting contaminants associated with a target. In one embodiment, a system is provided that comprises a tunable laser configured to transmit an illuminator pulse at a target for a predetermined time duration and a laser Doppler vibrometer system configured to transmit a probe pulse at a surface of the target within the predetermined time duration. The laser Doppler vibrometer system is further configured to detect and analyze at least one return pulse of the probe pulse to determine a surface expansion velocity of contaminants associated with the target due to the illuminator pulse.
摘要翻译： 提供了用于检测与靶标相关的污染物的系统和方法。 在一个实施例中，提供了一种系统，其包括可调激光器，其被配置为在目标处传送预定持续时间的照明器脉冲;以及激光多普勒测振系统，被配置为在预定持续时间内在目标表面上传输探测脉冲 。 所述激光多普勒测振系统还被配置为检测和分析所述探针脉冲的至少一个返回脉冲，以确定由于所述照明器脉冲而与所述目标相关联的污染物的表面膨胀速度。
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公开(公告)号：US20090268761A1
公开(公告)日：2009-10-29
申请号：US12150415
申请日：2008-04-28
CPC分类号： H01S5/22 , H01L21/265 , H01L21/425 , H01L21/76825 , H01L45/165 , H01L51/105 , H01S5/02469 , H01S5/0287 , H01S5/0425 , H01S5/0655 , H01S5/1014 , H01S5/1053 , H01S5/1064 , H01S5/2036 , H01S2301/166
摘要： One embodiment is a wide stripe semiconductor waveguide, which is cleaved at a Talbot length thereof, the wide stripe semiconductor waveguide having facets with mirror coatings. A system provides for selective pumping the wide stripe semiconductor waveguide to create and support a Talbot mode. In embodiments according to the present method and apparatus the gain is patterned so that a single unique pattern actually has the highest gain and hence it is the distribution that oscillates.
摘要翻译： 一个实施例是宽条形半导体波导，其在其Talbot长度处被切割，宽条形半导体波导具有具有镜面涂层的刻面。 系统提供选择性地泵送宽条形半导体波导以创建和支持Talbot模式。 在根据本方法和装置的实施例中，增益被图案化，使得单个唯一图案实际上具有最高增益，因此是振荡的分布。
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8.发明授权Laser diode arrays with replaceable laser diode bars and methods of removing and replacing laser diode bars 有权具有可更换激光二极管条的激光二极管阵列以及去除和替换激光二极管条的方法公开(公告)号：US07145927B2
公开(公告)日：2006-12-05
申请号：US10784518
申请日：2004-02-23
申请人： Robert Rex Rice
发明人： Robert Rex Rice
CPC分类号： H01S5/02423 , H01S3/0941 , H01S5/02264 , H01S5/4025 , H01S5/405
摘要： The laser diode arrays with removable linear laser diode bars and the methods of removing and replacing linear laser diode bars of the present invention provide easy and immediate removal of individual linear laser diode bars in laser diode arrays. The laser diode array is at least partially made of a plurality of removable linear laser diode bars and a plurality of spacers, such that each removable linear laser diode bar is disposed between a respective pair of spacers. A linear laser diode bar may be slideably removed from between the respective pair of spacers in the laser diode array without breaking any mechanical connection between the removable linear laser diode bar and the respective pair of spacers. A replacement linear laser diode bar may then be slideably inserted between the respective pair of spacers without forming a mechanical connection between the replacement linear laser diode bar and the spacers.
摘要翻译： 具有可移除线性激光二极管条的激光二极管阵列以及本发明的去除和替代线性激光二极管条的方法提供了在激光二极管阵列中简单且立即去除各个线性激光二极管条的方法。 激光二极管阵列至少部分地由多个可移除的线性激光二极管棒和多个间隔件制成，使得每个可移除的线性激光二极管棒设置在相应的一对间隔件之间。 线性激光二极管棒可以从激光二极管阵列中的相应的一对间隔件之间可滑动地移除，而不会破坏可拆卸的线性激光二极管棒和相应的一对间隔件之间的任何机械连接。 然后可以将替代的线性激光二极管棒可滑动地插入在相应的一对间隔件之间，而不需要在替换的线性激光二极管棒和间隔件之间形成机械连接。
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公开(公告)号：US06687440B2
公开(公告)日：2004-02-03
申请号：US09795156
申请日：2001-02-28
IPC分类号： G02B602
CPC分类号： H04B10/2537 , G02B6/02 , G02B6/03694
摘要： An optical fiber having an elevated threshold for stimulated Brillouin scattering is provided. The optical fiber includes a core and a cladding surrounding the core with both the core and the cladding designed to guide optical waves through the core while anti-guiding acoustic waves. Moreover, the optical fiber includes other features to alter the mode profile of the acoustic waves and/or to further promote their lateral radiation. For example, the optical fiber can include an irregular coating to alter the mode profile of the acoustic waves. In another example, the optical fiber can include a quarter wave layer surrounding the cladding to promote the lateral radiation of the acoustic waves. In order to further alter the mode profile of the acoustic waves, the cladding can also have a lateral thickness that varies irregularly in a lengthwise direction.
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公开(公告)号：US06556602B2
公开(公告)日：2003-04-29
申请号：US09730286
申请日：2000-12-05
申请人： Robert Rex Rice , Neil F. Ruggieri , J. Stanley Whiteley , Robert A. Morgan , Richard A. Skogman
发明人： Robert Rex Rice , Neil F. Ruggieri , J. Stanley Whiteley , Robert A. Morgan , Richard A. Skogman
IPC分类号： H01S500
CPC分类号： H01S5/18375 , H01J29/10 , H01S3/0959 , H01S5/0213 , H01S5/0216 , H01S5/0217 , H01S5/04 , H01S5/423
摘要： An electron beam pumped semiconductor laser screen and an associated fabrication method are described which provide a display screen that has a relatively long operating lifetime, is less expensive to produce, and operates at lower electron voltages and near room temperature conditions. The laser screen includes a multi quantum well active gain region having quantum wells of GaInP and barrier layers of (AlxGa1-x)InP, thereby permitting operation in the visible, red spectrum. Moreover, the first layer epitaxially grown on the sacrificial substrate is an etch stop layer of (GaxAl1-x)yIn1-yP that acts as an etch stop during the subsequent etching of the sacrificial substrate and may also be used to adjust the cavity length to the correct resonance condition. The laser screen also includes an output mirror having alternating layers of two different compositions of GaxAl1-xAs that are epitaxially grown on the multi quantum well active gain region. The output mirror can also include a thin, final layer of GaAs to cap the structure and prevent degradation of the GaxAl1-xAs layers. The semiconductor laser screen also includes a carrier that is affixed to the output mirror. Further, the laser screen includes a metallic mirror and, in one embodiment, a hybrid metallic-dielectric mirror on the etch stop layer opposite the output mirror. As such, a laser cavity is defined between the output mirror and the metallic mirror. The semiconductor laser screen may be integrated into an electron beam pumped semiconductor laser which forms the basis for a projection display. A fabrication method is also provided.
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