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21. 发明授权

US06490071B2 Method and apparatus for optimizing SBS performance in an optical communication system using at least two phase modulation tones 有权
标题翻译：用于使用至少两个相位调制音调优化光通信系统中的SBS性能的方法和装置
公开(公告)号：US06490071B2
公开(公告)日：2002-12-03
申请号：US09923029
申请日：2001-08-06
申请人： Ronald T. Logan, Jr. , Ruo Ding Li
发明人： Ronald T. Logan, Jr. , Ruo Ding Li
IPC分类号： H04B1000
CPC分类号： H04B10/2537
摘要： A method of optimizing SBS suppression is disclosed for use in an optical communication system including a light guide for transmitting light and means for producing phase modulation of the light using at least first and second tones. In the method, an operational region of SBS suppression is established as a function of the phase modulation of the light such that the operational region identifies combinations of first and second phase modulation levels at which optimum SBS suppression is achieved for the first and second tones. Thereafter, based on the operational region, the first and second phase modulation levels are adjusted such that the system operates with optimum SBS suppression. In one aspect, a contour map and associated method are introduced. The contour map is especially suited for use in optimizing SBS suppression in an optical communication system in which light is phase modulated using at least first and second tones for transmission of the phase modulated light via media which exhibits an SBS threshold. In another aspect, one of the sub-regions identified by the contour map may be selected as the operating point of the system based on certain characteristics of the contour map at and around the location of the selected operating point. In this manner, for example, the stability of the optical communication system may be improved in the event that the selected operating point is subject to drift.
摘要翻译：公开了一种优化SBS抑制的方法，用于包括用于发射光的光导的光通信系统和用于使用至少第一和第二音调产生光的相位调制的装置。在该方法中，SBS抑制的操作区域被建立为光的相位调制的函数，使得操作区域识别第一和第二相位调制电平的组合，在第一和第二相位调制电平处获得针对第一和第二音调的最佳SBS抑制。此后，基于操作区域，调整第一和第二相位调制电平，使得系统以最佳SBS抑制运行。在一个方面，引入了轮廓图和相关联的方法。轮廓图特别适合用于优化光通信系统中的SBS抑制，其中使用至少第一和第二音调对光进行相位调制，以便通过显示SBS阈值的介质传输相位调制光。在另一方面，基于轮廓图识别的子区域中的一个可以基于所选择的操作点的位置处和周围的轮廓图的某些特征被选择为系统的操作点。以这种方式，例如，在所选择的操作点经受漂移的情况下，可以改善光通信系统的稳定性。

22. 发明授权

US09297972B2 Advanced fiber-optic contact and method 有权
标题翻译：先进的光纤接触和方法
公开(公告)号：US09297972B2
公开(公告)日：2016-03-29
申请号：US13562267
申请日：2012-07-30
申请人： Ronald T. Logan, Jr. , Sean Zargari , Mehrdad Ghara , Huan Do
发明人： Ronald T. Logan, Jr. , Sean Zargari , Mehrdad Ghara , Huan Do
IPC分类号： G02B6/36 , H01R43/16 , G02B6/42
CPC分类号： G02B6/4292 , G02B6/3821 , G02B6/3822 , G02B6/3831 , G02B6/3871 , G02B6/4206 , G02B6/423 , G02B6/4245 , G02B6/4281 , G02B6/4284 , Y10T29/49204
摘要： An opto-electronic contact, method and connection system can utilize an active opto-electronic converter configured for removable optical engagement with an opposing contact. A barrel housing defines an interior cavity to capture the converter in the interior cavity for external optical engagement to the opposing contact via the first barrel opening for relative movement of the converter axis along the elongation axis, transverse thereto, and oblique thereto to accommodate mating tolerances responsive to engaging the opposing contact. A flexible circuit board assembly can be used to externally electrically interface the converter.
摘要翻译：光电触点，方法和连接系统可以利用配置成与相对触点可移动光学接合的主动光电转换器。桶壳体限定内腔以捕获内腔中的转换器，用于经由第一筒开口与对置接触件的外部光学接合，用于沿着横向于其的伸长轴线并且与其倾斜以相对运动转换器轴线以适应配合公差响应于接合相对的接触。柔性电路板组件可用于外部电接口转换器。

23. 发明授权

US06226424B1 Integrated wavelength-select transmitter 有权
标题翻译：集成波长选择发射机
公开(公告)号：US06226424B1
公开(公告)日：2001-05-01
申请号：US09306108
申请日：1999-05-06
申请人： Gary A. Ball , Robert W. Ade , Karl Kissa , Paul Dunn , Timothy C. Munks , Ronald T. Logan, Jr. , Eitan Gertel
发明人： Gary A. Ball , Robert W. Ade , Karl Kissa , Paul Dunn , Timothy C. Munks , Ronald T. Logan, Jr. , Eitan Gertel
IPC分类号： G02B612
CPC分类号： G02B6/4201 , G02B6/4215 , G02B6/4239 , G02B6/4244 , G02B6/4266 , G02B6/4271 , G02B6/4285
摘要： An integrated optical transmitter for use in an optical system includes an optical head assembly having an optical beam generator for providing an optical beam and a lens assembly for collecting the optical beam and generating therefrom a formed optical beam. Interface optics receive the formed optical beam for coupling the beam to a modulator so as to reduce nsertion loss to the optical beam. The optical modulator receives the optical beam from the interface optics and provides a modulated optical beam in response to received modulation signals. The optical modulator is coupled to the interface optics to be in a fixed relationship therewith. The integrated optical transmitter can include a means for sampling the optical beam and controlling the temperature of and/or the current supplied to the optical beam generator for controlling the wavelength of the optical transmitter. The optical head assembly and the modulator can be compliantly mounted to a mounting surface reducing the effects of thermal stress on the performance of the optical transmitter.
摘要翻译：用于光学系统的集成光发射机包括具有用于提供光束的光束发生器和用于收集光束并由其产生形成的光束的透镜组件的光学头组件。接口光学器件接收形成的光束，用于将光束耦合到调制器，以减少对光束的插入损耗。光调制器从接口光学器件接收光束并且响应于接收的调制信号提供调制的光束。光调制器耦合到界面光学器件以与其成为固定的关系。集成光发射机可以包括用于对光束进行采样并控制提供给光束发生器的温度和/或电流以控制光发射机的波长的装置。光学头组件和调制器可以顺应地安装到安装表面，减少热应力对光发射机性能的影响。

24. 发明授权

US5710651A Remote millimeter-wave antenna fiber optic communication system using dual optical signal with millimeter-wave beat frequency 失效
标题翻译：远程毫米波天线光纤通信系统采用双光信号与毫米波拍频
公开(公告)号：US5710651A
公开(公告)日：1998-01-20
申请号：US571368
申请日：1995-12-13
申请人： Ronald T. Logan, Jr.
发明人： Ronald T. Logan, Jr.
IPC分类号： H04B10/12 , H04B10/142
CPC分类号： H04B10/25758 , H03B28/00
摘要： The transmitter or receiver of the remote antenna system of the present invention includes a fiber optic link connecting the receiver or transmitter station with a remote antenna station. The optical carrier for the fiber optic link is produced by a dual optical signal generator, preferably in the form of two narrow-linewidth lasers frequency offset by a difference frequency corresponding to the millimeter-wave or microwave signal. If the invention is employed to convey a baseband signal from the transmitter station to the antenna station, a modulator at the transmitter station modulates the dual optical signal carrier with the baseband signal. The modulated signal is carried over the optical fiber to a photodetector at the remote antenna station which detects the millimeter wave difference frequency modulated by the baseband signal. If the invention is employed to convey a received millimeter wave signal from the remote antenna station to the receiver station, then a modulator at the remote antenna station modulates the dual optical signal carrier with the received millimeter wave signal. The modulated signal is carried over the optical fiber to a photodiode at the receiver station which detects the baseband contained in the millimeter wave signal.
摘要翻译：本发明的远程天线系统的发射机或接收机包括将接收机或发射台与远程天线台连接的光纤链路。用于光纤链路的光载波由双光信号发生器产生，优选地以两个窄线宽激光器的形式，频率偏移与对应于毫米波或微波信号的差频。如果本发明用于将基带信号从发射台传送到天线台，则发射机站处的调制器用基带信号调制双光信号载波。调制信号通过光纤传送到远程天线站的光电检测器，该检测器检测由基带信号调制的毫米波差频。如果将本发明用于将接收的毫米波信号从远程天线站传送到接收站，则远程天线站处的调制器用接收的毫米波信号调制双光信号载波。调制信号通过光纤传送到检测毫米波信号中包含的基带的接收机处的光电二极管。

25. 发明授权

US5379309A High frequency source having heterodyned laser oscillators injection-locked to a mode-locked laser 失效
标题翻译：具有外差激光振荡器的高频源注入锁定到锁模激光器
公开(公告)号：US5379309A
公开(公告)日：1995-01-03
申请号：US106445
申请日：1993-08-16
申请人： Ronald T. Logan, Jr.
发明人： Ronald T. Logan, Jr.
IPC分类号： G02F2/00 , H01S5/062 , H01S5/40 , H04J14/02 , H01S3/098
CPC分类号： H03B28/00 , H01S5/4006 , G02F2/002 , H01S5/0623 , H01S5/4025 , H01S5/4087 , H04J14/02
摘要： Two independent laser oscillators are injection-locked to different optical modes of a mode-locked laser, then combined and detected to produce the heterodyne output signal in the microwave to submillimeter wave frequency band. Since the phase fluctuations of the mode-locked laser modes are highly correlated, the phase fluctuations of the heterodyne output signal are greatly reduced, providing a low phase-noise oscillator signal. Since the modes of the mode-locked laser can span hundreds of GigaHertz, the oscillator can be employed to generate microwave, millimeter wave or submillimeter wave frequencies.
摘要翻译：两个独立的激光振荡器被注入锁定到锁模激光器的不同光学模式，然后组合和检测以产生微波到亚毫米波频带的外差输出信号。由于锁模激光模式的相位波动高度相关，外差输出信号的相位波动大大降低，提供低的相位噪声振荡器信号。由于锁模激光器的模式可以跨越几百千兆赫兹，振荡器可用于产生微波，毫米波或亚毫米波频率。

26. 发明授权

US09400214B1 Terahertz frequency domain spectrometer with a single photoconductive element for terahertz signal generation and detection 有权
标题翻译：太赫兹频域光谱仪，具有用于太赫兹信号产生和检测的单个光电导元件
公开(公告)号：US09400214B1
公开(公告)日：2016-07-26
申请号：US14183088
申请日：2014-02-18
申请人： Joseph R. Demers
发明人： Joseph R. Demers , Ronald T. Logan, Jr. , Bryon Kasper
IPC分类号： G01J5/02 , G01J3/28 , G01J3/42 , G01J3/02 , G01J3/10 , G01N21/3581 , G01N21/3586
CPC分类号： G01J3/42 , G01J3/0256 , G01J3/10 , G01J3/108 , G01N21/3581 , G01N21/3586
摘要： There is described an apparatus for analyzing, identifying or imaging a target. The apparatus comprises a laser system which generates first and second laser beams having respective different frequencies, and directs the first and second laser beams along an optical path to a photoconductive material. An antenna structure is formed on the photoconductive material, the antenna structure comprises a first antenna for emitting electromagnetic radiation having a frequency dependent on the difference between said respective different frequencies of the first and second laser beams and a second antenna for generating a detection signal. A processor processes the detection signal to analyze, identify or image the target. The laser system is arranged such that the first and second laser beams overlap in a region of a surface of the photoconductive material having at least part of the first and second antennas formed thereon.
摘要翻译：描述了用于分析，识别或成像目标的装置。该装置包括产生具有各自不同频率的第一和第二激光束并将第一和第二激光束沿着光路引导到光电导材料的激光系统。天线结构形成在光电导材料上，天线结构包括用于发射具有取决于第一和第二激光束的各个不同频率之间的差异的频率的电磁辐射的第一天线和用于产生检测信号的第二天线。处理器处理检测信号以分析，识别或成像目标。激光系统被布置成使得第一和第二激光束在其中形成有第一和第二天线的至少一部分的光电导材料的表面的区域中重叠。

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