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1. 发明授权

US11231364B2 Optical turbulence measurement 有权
公开(公告)号：US11231364B2
公开(公告)日：2022-01-25
申请号：US17010007
申请日：2020-09-02
申请人： The Johns Hopkins University
发明人： David M. Brown , Randall T. Hanna , Kevin C. Baldwin , Andrea M. Brown
IPC分类号： G01N21/41 , G01N21/53
摘要： An optical turbulence measurement system may include a camera assembly, a first optics assembly, a second optics assembly, and processing circuitry. The first optics assembly and the second optics assembly may be configured to magnify and direct a portion of a source beam received by a respective aperture to the camera assembly to be received as a two portions of a received beam. The processing circuitry may be configured to receive, from the camera assembly, a data representation of a first received beam from the first optics assembly and a second received beam from the second optics assembly, determine a focal spot displacement variance based on motion of a first focal spot corresponding to the first received beam relative to a second focal spot corresponding to the second received beam, and measure optical turbulence along a path of the source beam based on the focal spot displacement variance.

2. 发明授权

US10295658B2 Optical detection system 有权
公开(公告)号：US10295658B2
公开(公告)日：2019-05-21
申请号：US14872175
申请日：2015-10-01
申请人： The Johns Hopkins University
发明人： William E. Torruellas , Robert L. Fry , Isaac N. Bankman , David M. Brown , Gil Tadmor , Thomas Raphael Clark, Jr.
IPC分类号： G01C3/08 , G01S7/484 , G01S17/08 , G01S17/93 , G01S7/481 , G01S7/48 , G01S17/10 , G01S17/42
摘要： An active optical detection system includes an optical transmitter configured to transmit light in a signal pattern and an optical receiver configured to receive light and determine a correlation between the received light and the signal pattern. The correlation of the received light and the signal pattern is indicative of range to an object.

3. 发明申请

US20150314625A1 HIGH RESOLUTION LASER LABELING OF MICROSCOPIC GLASS SLIDES AND HISTOLOGICAL SECTIONS 有权
标题翻译：高分辨率激光标记显微镜玻璃滑片和组织学部分
公开(公告)号：US20150314625A1
公开(公告)日：2015-11-05
申请号：US14699064
申请日：2015-04-29
申请人： THE JOHNS HOPKINS UNIVERSITY
发明人： Juan C. Troncoso , William E. Torruellas , David M. Brown , Andrea M. Brown
IPC分类号： B41M5/26 , G02B21/34
CPC分类号： B41M5/262 , G02B21/34
摘要： The present invention is directed to a device and a laser, eye-safe method for laser marking slides for use in conjunction with a light microscope. The device is an attachment for a light microscope that allows the operator to make marks on preparations of biological tissues or other materials placed on a glass slide or between a glass slide and a cover slip. The marks can be used to indicate or highlight a microscopic structure or feature of interest. The marking on the slide is performed as the specimen is examined, without having to remove it from the microscope stage. In this way the invention has application in a biomedical or pathology laboratory for diagnostic, research, archival, and teaching or training purposes.
摘要翻译：本发明涉及一种用于与光学显微镜结合使用的用于激光标记载玻片的装置和激光器，眼睛安全的方法。该装置是用于光学显微镜的附件，其允许操作者在放置在载玻片上或玻璃载玻片和盖玻片之间的生物组织或其他材料的制备上做出标记。标记可用于指示或突出显微结构或感兴趣的特征。在检查样品时执行载玻片上的标记，而无需将其从显微镜平台上取下。以这种方式，本发明可用于生物医学或病理学实验室用于诊断，研究，档案和教学或培训目的。

4. 发明申请

US20180081032A1 OPTICAL DETECTION SYSTEM 审中-公开
公开(公告)号：US20180081032A1
公开(公告)日：2018-03-22
申请号：US14872175
申请日：2015-10-01
申请人： The Johns Hopkins University
发明人： William E. Torruellas , Robert L. Fry , Isaac N. Bankman , David M. Brown , Gil Tadmor , Thomas Raphael Clark, JR.
IPC分类号： G01S7/484 , G01S17/08 , G01S7/48 , G01S7/481 , G01S17/93
CPC分类号： G01S7/484 , G01S7/4808 , G01S7/4815 , G01S17/08 , G01S17/10 , G01S17/42 , G01S17/936
摘要： An active optical detection system includes an optical transmitter configured to transmit light in a signal pattern and an optical receiver configured to receive light and determine a correlation between the received light and the signal pattern. The correlation of the received light and the signal pattern is indicative of range to an object.

5. 发明授权

US09370956B2 High resolution laser labeling of microscopic glass slides and histological sections 有权
标题翻译：高分辨率激光标记显微镜玻片和组织切片
公开(公告)号：US09370956B2
公开(公告)日：2016-06-21
申请号：US14699064
申请日：2015-04-29
申请人： THE JOHNS HOPKINS UNIVERSITY
发明人： Juan C. Troncoso , William E. Torruellas , David M. Brown , Andrea M. Brown
IPC分类号： B41M5/26 , G02B21/34
CPC分类号： B41M5/262 , G02B21/34
摘要： The present invention is directed to a device and a laser, eye-safe method for laser marking slides for use in conjunction with a light microscope. The device is an attachment for a light microscope that allows the operator to make marks on preparations of biological tissues or other materials placed on a glass slide or between a glass slide and a cover slip. The marks can be used to indicate or highlight a microscopic structure or feature of interest. The marking on the slide is performed as the specimen is examined, without having to remove it from the microscope stage. In this way the invention has application in a biomedical or pathology laboratory for diagnostic, research, archival, and teaching or training purposes.
摘要翻译：本发明涉及一种用于与光学显微镜结合使用的用于激光标记载玻片的装置和激光器，眼睛安全的方法。该装置是用于光学显微镜的附件，其允许操作者在放置在载玻片上或玻璃载玻片和盖玻片之间的生物组织或其他材料的制备上做出标记。标记可用于指示或突出显微结构或感兴趣的特征。在检查样品时执行载玻片上的标记，而无需将其从显微镜平台上取下。以这种方式，本发明可用于生物医学或病理学实验室用于诊断，研究，档案和教学或培训目的。

6. 发明申请

US20180269645A1 HIGH ENERGY FIBER LASER AMPLIFIER WITH REDUCED OPTICAL LINEWIDTH 审中-公开
公开(公告)号：US20180269645A1
公开(公告)日：2018-09-20
申请号：US15375283
申请日：2016-12-12
申请人： The Johns Hopkins University
发明人： Brice M. Cannon , David M. Brown , Mark J. Mayr , Michael L. Dennis , William E. Torruellas , Jeffrey O. White
IPC分类号： H01S3/10 , H01S3/094 , H01S3/11 , H01S3/067 , H01S3/0941 , H01S3/091 , H01S3/23
CPC分类号： H01S3/10053 , H01S3/06754 , H01S3/0912 , H01S3/094003 , H01S3/0941 , H01S3/10015 , H01S3/1003 , H01S3/10061 , H01S3/10069 , H01S3/10084 , H01S3/11 , H01S3/2308 , H01S2301/03
摘要： Example apparatuses and methods are provided that improve laser performance or decrease the frequency or severity of the occurrence of Stimulated Brillouin scattering. One example is a laser device that may include a seed laser configured to generate an optical output, a pattern generator configured to generate a modulation pattern, and a phase modulator configured to apply a modulation scheme to the optical output based on the modulation pattern. The modulation pattern may include a digital sequence and the modulation pattern may be applied to modulate a phase or an amplitude of the optical output.

7. 发明授权

US09825701B2 Free space optical communication 有权
公开(公告)号：US09825701B2
公开(公告)日：2017-11-21
申请号：US14880875
申请日：2015-10-12
申请人： The Johns Hopkins University
发明人： Juan C. Juarez , Radha A. Venkat , Ricardo Luna , David A. Kitchin , Melissa E. Jansen , David W. Young , Katherine T. Souza , Joseph E. Sluz , David M. Brown , Ryan P. DiNello-Fass , Hala J. Tomey
IPC分类号： H04B10/112
CPC分类号： H04B10/112
摘要： An optical communications beacon receiver including a camera for capturing a plurality of beacon images. The plurality of beacon images includes a beacon signal transmitted from a beacon transmitter. The beacon receiver also including processing circuitry configured for determining the state of the beacon signal for each of the plurality of beacon images based on the known pattern, at least one beacon image of the plurality of beacon images includes a beacon on state and at least one beacon image of the plurality of beacon images includes a beacon off state, comparing the at least one beacon image including the beacon on state to the at least one beacon image including the beacon off state, and determining a beacon location based on the comparison of the at least one beacon image including the beacon on state to the at least one beacon image including the beacon off state.

8. 发明申请

US20140086267A1 High Energy Fiber Laser Modulator 有权
标题翻译：高能光纤激光调制器
公开(公告)号：US20140086267A1
公开(公告)日：2014-03-27
申请号：US13628454
申请日：2012-09-27
申请人： THE JOHNS HOPKINS UNIVERSITY
发明人： Michael L. Dennis , William E. Torruellas , David M. Brown
IPC分类号： H01S3/067 , G02F1/01
CPC分类号： H01S3/10061 , H01S3/06754 , H01S3/10053 , H01S3/10084 , H01S2301/03
摘要： A laser device includes a seed laser, a polarizer, a pseudorandom bit sequence (PRBS) pattern generator, and a phase modulator. The polarizer may be optically coupled to receive an output of the seed laser and may generate a polarization filtered output. The PRBS pattern generator may be configured to generate a PRBS pattern. The phase modulator may be configured to apply a PRBS modulation scheme to the polarization filtered output based on the PRBS pattern. The PRBS pattern may be generated to have a length above a first threshold for avoiding an occurrence of backward propagation being in phase with forward propagation in an active fiber receiving an output of the phase modulator when the pattern repeats and below a second threshold for phase mismatch in the active fiber.
摘要翻译：激光装置包括种子激光器，偏振器，伪随机比特序列（PRBS）模式发生器和相位调制器。偏振器可以被光学耦合以接收种子激光器的输出并且可以产生偏振滤波的输出。 PRBS模式生成器可以被配置为生成PRBS模式。相位调制器可以被配置为基于PRBS模式将PRBS调制方案应用于偏振滤波的输出。 PRBS模式可以被产生为具有高于第一阈值的长度，以避免在模式重复时在接收相位调制器的输出的有源光纤中与正向传播相位的反向传播的发生相位，并且低于用于相位失配的第二阈值在活性纤维中。

9. 发明申请

US20210404956A1 Optical Turbulence Measurement 有权
公开(公告)号：US20210404956A1
公开(公告)日：2021-12-30
申请号：US17010007
申请日：2020-09-02
申请人： The Johns Hopkins University
发明人： David M. Brown , Randall T. Hanna, II , Kevin C. Baldwin , Andrea M. Brown
IPC分类号： G01N21/53
摘要： An optical turbulence measurement system may include a camera assembly, a first optics assembly, a second optics assembly, and processing circuitry. The first optics assembly and the second optics assembly may be configured to magnify and direct a portion of a source beam received by a respective aperture to the camera assembly to be received as a two portions of a received beam. The processing circuitry may be configured to receive, from the camera assembly, a data representation of a first received beam from the first optics assembly and a second received beam from the second optics assembly, determine a focal spot displacement variance based on motion of a first focal spot corresponding to the first received beam relative to a second focal spot corresponding to the second received beam, and measure optical turbulence along a path of the source beam based on the focal spot displacement variance.

10. 发明申请

US20160112124A1 Free Space Optical Communication 有权
标题翻译：自由空间光通信
公开(公告)号：US20160112124A1
公开(公告)日：2016-04-21
申请号：US14880875
申请日：2015-10-12
申请人： The Johns Hopkins University
发明人： Juan C. Juarez , Radha A. Venkat , Ricardo Luna , David A. Kitchin , Melissa E. Jansen , David W. Young , Katherine T. Souza , Joseph E. Sluz , David M. Brown , Ryan P. DiNello-Fass , Hala J. Tomey
IPC分类号： H04B10/11 , H04B10/60
CPC分类号： H04B10/112
摘要： An optical communications beacon receiver including a camera for capturing a plurality of beacon images. The plurality of beacon images includes a beacon signal transmitted from a beacon transmitter. The beacon receiver also including processing circuitry configured for determining the state of the beacon signal for each of the plurality of beacon images based on the known pattern, at least one beacon image of the plurality of beacon images includes a beacon on state and at least one beacon image of the plurality of beacon images includes a beacon off state, comparing the at least one beacon image including the beacon on state to the at least one beacon image including the beacon off state, and determining a beacon location based on the comparison of the at least one beacon image including the beacon on state to the at least one beacon image including the beacon off state.
摘要翻译：一种光通信信标接收机，包括用于捕获多个信标图像的相机。多个信标图像包括从信标发射机发送的信标信号。信标接收机还包括处理电路，其被配置为基于已知模式确定多个信标图像中的每一个的信标信号的状态，多个信标图像中的至少一个信标图像包括信标状态和至少一个多个信标图像的信标图像包括信标关闭状态，将包括状态信标的至少一个信标图像与包括信标关闭状态的至少一个信标图像进行比较，以及基于信标位置的比较来确定信标位置至少一个信标图像，其包括所述信标开启状态到包括所述信标关闭状态的所述至少一个信标图像。

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