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1. 发明授权

US08917444B2 Chip-based frequency comb generator with microwave repetition rate 有权
标题翻译：基于芯片的频率梳发生器，具有微波重复率
公开(公告)号：US08917444B2
公开(公告)日：2014-12-23
申请号：US13525189
申请日：2012-06-15
申请人： Jiang Li , Hansuek Lee , Tong Chen , Kerry Vahala
发明人： Jiang Li , Hansuek Lee , Tong Chen , Kerry Vahala
IPC分类号： G02F2/02 , G02F1/225
CPC分类号： G02F1/353 , G02F1/2257 , G02F2201/063 , G02F2201/17 , G02F2201/58 , G02F2202/09 , G02F2202/105 , G02F2203/15 , G02F2203/54 , G02F2203/56 , G02F2203/69
摘要： A frequency comb generator fabricated on a chip with elimination of a disadvantageous reflow process, includes an ultra-high Q disk resonator having a waveguide that is a part of a wedge structure fabricated from a silicon dioxide layer of the chip. The disk resonator allows generation of a frequency comb with a mode spacing as low as 2.6 GHz and up to 220 GHz. A surface-loss-limited behavior of the disk resonator decouples a strong dependence of pumping threshold on repetition rate.
摘要翻译：制造在芯片上的消除不利的回流工艺的频率梳发生器包括具有作为由芯片的二氧化硅层制成的楔形结构的一部分的波导的超高Q盘谐振器。磁盘谐振器允许产生低至2.6GHz和高达220GHz的模式间隔的频率梳。盘式谐振器的表面损耗受限行为使抽水阈值对重复率的强烈依赖性解耦。

2. 发明授权

US09293887B2 Chip-based laser resonator device for highly coherent laser generation 有权
标题翻译：用于高度相干激光产生的基于芯片的激光谐振器装置
公开(公告)号：US09293887B2
公开(公告)日：2016-03-22
申请号：US13525147
申请日：2012-06-15
申请人： Jiang Li , Hansuek Lee , Tong Chen , Kerry Vahala
发明人： Jiang Li , Hansuek Lee , Tong Chen , Kerry Vahala
IPC分类号： H01S5/10 , H01S3/30 , H01S3/063 , H01S3/083 , H01S3/094 , H01S3/0941 , H01S3/17
CPC分类号： H01S5/2275 , H01S3/0632 , H01S3/083 , H01S3/094057 , H01S3/0941 , H01S3/176 , H01S3/30 , H01S5/1075 , H01S2301/02
摘要： A highly-coherent chip-based laser generating system includes a disk resonator incorporating a wedge structure fabricated from a silicon dioxide layer of a chip. The disk resonator is operable to generate a highly-coherent laser from a low-coherence optical pump input provided at an optical power level as low as 60 μW. The disk resonator is fabricated with sub-micron cavity size control that allows generation of a highly-coherent laser using a controllable Stimulated Brillouin Scattering process that includes matching of a cavity free-spectral-range to a Brillouin shift frequency in silica. While providing several advantages due to fabrication on a chip, the highly-coherent laser produced by the disk resonator may feature a Schawlow-Townes noise level as low as 0.06 Hz2/Hz (measured with the coherent laser at a power level of about 400 μW) and a technical noise that is at least 30 dB lower than the low-coherence optical pump input.
摘要翻译：高度相干的基于芯片的激光发生系统包括一个包含由芯片的二氧化硅层制成的楔形结构的光盘谐振器。盘式谐振器可操作以从低至60μW的光功率级提供的低相干光泵输入产生高相干激光。盘式谐振器采用亚微米腔体尺寸控制制造，其允许使用可控激励的布里渊散射方法产生高相干激光，其包括空腔自由光谱范围与二氧化硅中的布里渊移动频率的匹配。虽然由于在芯片上的制造而提供了几个优点，但是由盘式谐振器产生的高相干激光器可以具有低至0.06Hz2 / Hz的Schwlow-Townes噪声电平（以约400μW的功率水平的相干激光器测量））和比低相干光泵输入低至少30 dB的技术噪声。

3. 发明申请

US20150236784A1 STABILIZED MICROWAVE-FREQUENCY SOURCE 有权
标题翻译：稳定的微波源
公开(公告)号：US20150236784A1
公开(公告)日：2015-08-20
申请号：US14605977
申请日：2015-01-26
申请人： Kerry Vahala , Scott Diddams , Jiang Li , Xu Yi , Hansuek Lee
发明人： Kerry Vahala , Scott Diddams , Jiang Li , Xu Yi , Hansuek Lee
IPC分类号： H04B10/2507 , H04B10/2575
CPC分类号： H04B10/2507 , H03B17/00 , H03L7/08 , H03L7/16 , H04B10/2504 , H04B10/2575 , H04B10/503 , H04B2210/006 , H04L7/0075 , H04L7/0091
摘要： A microwave-frequency source at frequency fM comprises: a dual optical-frequency reference source, an electro-optic sideband generator, an optical bandpass filter, an optical detector, a reference oscillator, an electrical circuit, and a voltage-controlled oscillator (VCO). The sideband generator modulates dual optical reference signals at v2 and v1 to generate sideband signals at v1±n1fM and v2±n2fM. The bandpass filter transmits sideband signals at v1+N1fM and v2−N2fM. The optical detector generates a beat note at (v2−N2fM)−(v1+N1fM). The beat note and a reference oscillator signal are processed by the circuit to generate a loop-filtered error signal to input to the VCO. Output of the VCO at fM drives the sideband generator and forms the microwave-frequency output signal. The resultant frequency division results in reduced phase noise on the microwave-frequency signal.
摘要翻译：频率fM的微波频率源包括：双光频参考源，电光边带发生器，光带通滤波器，光检测器，参考振荡器，电路和压控振荡器（VCO ）。边带发生器在v2和v1处调制双光参考信号，以在v1±n1fM和v2±n2fM产生边带信号。带通滤波器发送v1 + N1fM和v2-N2fM的边带信号。光学检测器在（v2-N2fM） - （v1 + N1fM）处产生节拍。拍音和参考振荡器信号由电路处理以产生环路滤波的误差信号以输入到VCO。在fM处的VCO的输出驱动边带发生器并形成微波频率输出信号。所得到的分频导致微波频率信号上的相位噪声减小。

4. 发明申请

US20150236789A1 DUAL-FREQUENCY OPTICAL SOURCE 有权
标题翻译：双频光源
公开(公告)号：US20150236789A1
公开(公告)日：2015-08-20
申请号：US14605987
申请日：2015-01-26
申请人： Kerry Vahala , Jiang Li
发明人： Kerry Vahala , Jiang Li
IPC分类号： H04B10/50 , H04B10/25 , H04L7/00
CPC分类号： H04B10/2507 , H03B17/00 , H03L7/08 , H03L7/16 , H04B10/2504 , H04B10/2575 , H04B10/503 , H04B2210/006 , H04L7/0075 , H04L7/0091
摘要： A dual-frequency optical source comprises: (a) first and second pump laser sources arranged to generate optical pump power at respective first and second pump laser frequencies vpump1 and vpump2; and (b) a fiber optical resonator characterized by a Brillouin shift frequency vB and a free spectral range that is substantially equal to an integer submultiple of the Brillouin shift frequency. Each one of the first and second pump laser sources is frequency-locked to a corresponding resonant optical mode of the fiber optical resonator. First and second optical output signals of the dual-frequency optical reference source at respective first and second output frequencies v1=vpump1−vB and v2=vpump2−vB comprise stimulated Brillouin laser output generated by simultaneous optical pumping of the fiber optical resonator by the first and second pump laser sources, respectively. An output difference frequency v2−v1 is greater than about 300 GHz.
摘要翻译：双频光源包括：（a）第一和第二泵浦激光源，被布置成在相应的第一和第二泵浦激光频率vpump1和vpump2处产生光泵浦功率; 以及（b）以布里渊移动频率vB为特征的光纤谐振器，和基本上等于布里渊移动频率的整数倍的自由光谱范围。第一和第二泵浦激光源中的每一个被频率锁定到光纤光谐振器的相应的谐振光学模式。在相应的第一和第二输出频率v1 = vpump1-vB和v2 = vpump2-vB处的双频光参考源的第一和第二光输出信号包括通过第一和第二信号同时光纤泵浦光纤光学谐振器而产生的受激布里渊激光输出和第二泵激光源。输出差频v2-v1大于约300GHz。

5. 发明授权

US08818146B2 Silica-on-silicon waveguides and related fabrication methods 有权
标题翻译：二氧化硅 - 硅波导和相关制造方法
公开(公告)号：US08818146B2
公开(公告)日：2014-08-26
申请号：US13494707
申请日：2012-06-12
申请人： Kerry Vahala , Hansuek Lee , Tong Chen , Jiang Li
发明人： Kerry Vahala , Hansuek Lee , Tong Chen , Jiang Li
IPC分类号： G02B6/12 , G02B6/10 , H01L21/00 , H01L21/302 , H01L21/461 , G02B6/136
CPC分类号： G02B6/136
摘要： A method of manufacturing a waveguide eliminates a prior art reflow step and introduces certain new steps that permit fabricating of an ultra-low loss waveguide element on a silicon chip. The ultra-low loss waveguide element may be adapted to fabricate a number of devices, including a wedge resonator and a ultra-low loss optical delay line having an extended waveguide length.
摘要翻译：制造波导的方法消除了现有技术的回流步骤，并且引入允许在硅芯片上制造超低损耗波导元件的某些新步骤。超低损耗波导元件可以适于制造多个器件，包括具有扩展的波导长度的楔形谐振器和超低损耗光学延迟线。

6. 发明授权

US10171892B2 System and method for monitoring water level on a roof 有权
公开(公告)号：US10171892B2
公开(公告)日：2019-01-01
申请号：US15347409
申请日：2016-11-09
申请人： John Petrachek , Xuewen Zhu , Jiang Li , Jianbin Xiao
发明人： John Petrachek , Xuewen Zhu , Jiang Li , Jianbin Xiao
IPC分类号： H04Q9/00 , G01F23/30 , H04L29/08 , E04D5/14 , E04D13/00 , G01K1/02 , G01K1/14 , G08B21/18 , G08B17/06
摘要： A drain monitor, a system, and a method monitor water level on a roof. The drain monitor includes a base for attaching to the roof, a riser attached to the base and projecting from the roof, a water level sensor attached to the riser for measuring water level on the roof, and a communication system positioned on the riser for transmitting measurement data received from the water level sensor.

7. 发明授权

US10081754B2 Gel compositions for hydraulic fracturing applications 有权
$Gel compositions for hydraulic fracturing applications$
公开(公告)号：US10081754B2
公开(公告)日：2018-09-25
申请号：US14770668
申请日：2014-02-28
申请人： Kemira Oyj , Jiang Li , Roopa Tellakula
发明人： Jiang Li , Roopa Tellakula
IPC分类号： C09K8/66 , C09K8/12 , C09K8/68 , C09K8/80 , C09K8/88
CPC分类号： C09K8/12 , C09K8/685 , C09K8/805 , C09K8/88 , C09K8/887 , C09K2208/12 , C09K2208/28 , C09K2208/32
摘要： Gel compositions comprising an acrylamide polymer or copolymer crosslinked with dialdehyde, methods to produce the gel compositions, wellbore treatment fluids comprising the gel compositions, and methods of treating a well bore comprising injecting the gel compositions, are provided. In the drilling, completion, and stimulation of oil and gas wells, well treatment fluids are often pumped into well bore holes under high pressure and at high flow rates causing the rock formation surrounding the well bore to fracture.

8. 发明申请

US20160024375A1 Friction Reducing Polymers 审中-公开
标题翻译：摩擦减少聚合物
公开(公告)号：US20160024375A1
公开(公告)日：2016-01-28
申请号：US14774438
申请日：2014-03-18
申请人： Jiang LI , Ronald SON , Philip WATSON , Logan JACKSON , Kemira Oyj
发明人： Jiang Li , Ronald Robinson , Philip Watson , Logan Jackson
IPC分类号： C09K8/68 , E21B43/20 , E21B43/26
CPC分类号： C09K8/68 , C08F8/12 , C08F2810/50 , C09K8/035 , C09K2208/28 , C09K2208/34 , E21B43/20 , E21B43/26 , C08F220/56 , C08F218/08 , C08F220/06 , C08F216/06
摘要： Described herein are friction reducing polymers comprising two or more recurring units wherein at least one recurring unit is an acrylic acid or acrylamide monomer and at least one recurring unit is a vinyl monomer selected from a vinyl alcohol, a vinyl ester, and a vinyl ether.
摘要翻译：本文描述的是包含两个或多个重复单元的减摩聚合物，其中至少一个重复单元是丙烯酸或丙烯酰胺单体，并且至少一个重复单元是选自乙烯醇，乙烯基酯和乙烯基醚的乙烯基单体。

9. 发明授权

US09160794B2 Network address translators (NAT) type detection techniques 有权
标题翻译：网络地址转换器（NAT）类型检测技术
公开(公告)号：US09160794B2
公开(公告)日：2015-10-13
申请号：US12328296
申请日：2008-12-04
申请人： Qingwei Lin , Jiang Li , Jian-guang Lou , Yusuo Hu , Fan Li
发明人： Qingwei Lin , Jiang Li , Jian-guang Lou , Yusuo Hu , Fan Li
IPC分类号： G06F15/16 , H04L29/08 , H04L12/26 , H04L29/12 , H04L12/24 , H04L29/06
CPC分类号： H04L67/104 , H04L29/12339 , H04L41/12 , H04L43/50 , H04L61/2503 , H04L69/28
摘要： Techniques described herein enable peers to determine each peer's NAT type much more efficiently and quickly than when compared with existing techniques. To do so, a peer simultaneously sends multiple test messages to a server. The peer then waits to either receive a response for each of the multiple test messages or may store an indication that no response has been received after a predetermined timeout period. The peer then analyzes the received responses and/or the stored timeout indications to determine the peer's NAT type or to determine that the peer is operating free from concealment by a NAT/firewall device. By simultaneously sending the multiple test messages, the peer may determine the NAT type within a maximum time defined by the predetermined timeout period or a roundtrip time period that is required for communication between the peer and the server. As such, the tools allow for efficient NAT-type detection.
摘要翻译：本文描述的技术使得对等体能够比与现有技术相比更有效和快速地确定每个对等体的NAT类型。为此，对等体同时向服务器发送多个测试消息。然后，对等体等待接收多个测试消息中的每一个的响应，或者可以存储在预定的超时时段之后没有接收到响应的指示。对等体然后分析接收到的响应和/或存储的超时指示以确定对等体的NAT类型或者确定对等体正在从NAT /防火墙设备的隐藏中运行。通过同时发送多个测试消息，对等体可以在由对等体和服务器之间的通信所需的预定超时时间段或往返时间周期限定的最大时间内确定NAT类型。因此，这些工具允许有效的NAT类型检测。

10. 发明授权

US09054482B1 Laser diode stack assembly and method of manufacturing 有权
标题翻译：激光二极管组件及其制造方法
公开(公告)号：US09054482B1
公开(公告)日：2015-06-09
申请号：US14271709
申请日：2014-05-07
申请人： Jiang Li
发明人： Jiang Li
IPC分类号： H01S3/04 , H01S5/022 , H01S5/024 , H01S5/40 , H01L23/36 , H01L21/48 , H01L23/367 , H01L27/15
CPC分类号： H01L21/4871 , H01L23/36 , H01L23/3672 , H01L23/3677 , H01L27/156 , H01L2924/0002 , H01S3/04 , H01S3/0405 , H01S5/02264 , H01S5/02272 , H01S5/024 , H01S5/02476 , H01S5/4025 , H01S5/405 , H01L2924/00
摘要： A laser diode sub-assembly includes a plurality of laser diode bars, electrically conductive spacers and electrically insulative heat spreaders. The spacers and laser diode bars are arranged by alternating to affix each other via the solder preforms and aligned on the front surfaces, while the back surfaces of the spacers affix the top metalized surfaces of the heat spreaders via the same type of solder preforms. Specially designed fixtures can hold all the components in positions and go through the reflowing. The subassembly can be formed by one heating step. The laser diode stack can be formed by soldering the bottom metalized surfaces of the heat spreaders, via a lower melting temperature solder preform, to a heat sink.
摘要翻译：激光二极管子组件包括多个激光二极管条，导电间隔物和电绝缘散热器。间隔物和激光二极管条通过交替地经由焊料预成型件彼此贴合并且在前表面上对准地布置，而间隔件的后表面通过相同类型的焊料预制件固定散热器的顶部金属化表面。特殊设计的夹具可以将所有部件保持在位置并通过回流。子组件可以通过一个加热步骤形成。激光二极管堆叠可以通过将散热器的底部金属化表面通过较低熔点的焊料预制件焊接到散热器来形成。

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