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1. 发明授权

US5428314A Odd/even order distortion generator and distortion cancellation circuit 失效
标题翻译：奇/偶阶失真发生器和失真消除电路
公开(公告)号：US5428314A
公开(公告)日：1995-06-27
申请号：US239466
申请日：1994-05-09
申请人： William Swafford , Todd Van Cleave
发明人： William Swafford , Todd Van Cleave
IPC分类号： H03F1/32
CPC分类号： H03F1/3252
摘要： An input signal is split into two signals, one of which is provided to a distortion generator and a the other of which is provided to a three-way combiner. The distortion generator comprises a single composite amplifier stage having two nonlinear amplifiers and two 180 degree splitters. The amplifiers produce signals having both odd and even-order distortion components because the amplifiers exhibit non-linear behavior. The distortion generator produces two output signals, one of which consists of the fundamental signal and odd-order distortion components, and the other of which consists only of even-order distortion components. The three-way combiner combines these two signals with a portion of input signal at a phasing that produces a resultant output having both the odd and even-order distortions suppressed. Equalizers may be used to provide phase and/or amplitude compensation for the two signals produced by the distortion generator before providing them to the three-way combiner.
摘要翻译：输入信号被分成两个信号，其中一个被提供给失真发生器，另一个被提供给三路组合器。失真发生器包括具有两个非线性放大器和两个180度分离器的单个复合放大器级。放大器产生具有奇数和偶次失真分量的信号，因为放大器表现出非线性特性。失真发生器产生两个输出信号，其中之一由基本信号和奇数失真分量组成，另一个仅由偶次失真分量组成。三路组合器将这两个信号与输入信号的一部分相结合，产生具有抑制奇偶校正失真的合成输出。均衡器可以用于在将失真发生器提供给三路组合器之前为由失真发生器产生的两个信号提供相位和/或幅度补偿。

2. 发明授权

US5111519A Method of interference reduction for frequency multiplexed optical fiber communication 失效
标题翻译：频率复用光纤通信的干扰减少方法
公开(公告)号：US5111519A
公开(公告)日：1992-05-05
申请号：US649745
申请日：1991-02-01
申请人： Ronald F. Mathis
发明人： Ronald F. Mathis
IPC分类号： G02B6/28 , G02B6/34 , H04J14/02
CPC分类号： H04J14/02 , G02B6/2852 , G02B6/29358 , G02B6/29361
摘要： A fiber-optic bandpass filter comprising a resonant cavity formed in an optical waveguide is coupled to a fiber-optic bus which carries a large number of frequency multiplexed channels. The fiber-optic bandpass filter is selected to be one-half the modulation wavelength of the desired center frequency within a range of frequencies carried on the same transmission. The creation of a resonant cavity at the desired center frequency provides a filter which reduces the intensity of signals at surrounding frequencies so that an overall reduced output power is provided, resulting in less cross-talk between a large number of frequency multiplexed signals which, unfiltered, would all have equal power. The filter is broad enough that many adjacent channels are not significantly attenuated. The optical waveguide of which the filter is formed may be in the form of an optical fiber segment or a planar waveguide.
摘要翻译：包括在光波导中形成的谐振腔的光纤带通滤波器耦合到承载大量频率复用信道的光纤总线。光纤带通滤波器被选择为在相同传输时承载的频率范围内所需中心频率的调制波长的一半。在期望的中心频率处产生谐振腔提供滤波器，其降低周围频率处的信号的强度，从而提供总体降低的输出功率，导致在未经滤波的大量频率复用信号之间的串扰较少，都会有同等的权力。滤波器足够宽，以至于许多相邻通道没有被显着衰减。形成滤波器的光波导可以是光纤段或平面波导的形式。

3. 发明授权

US5166509A Optical modulator noise nonlinearity reduction circuit 失效
标题翻译：光调制器噪声非线性降低电路
公开(公告)号：US5166509A
公开(公告)日：1992-11-24
申请号：US610958
申请日：1990-11-09
申请人： Mark E. Curran
发明人： Mark E. Curran
IPC分类号： H04B10/155
CPC分类号： H04B10/5051 , H04B10/50593 , H04B10/588
摘要： An optical modulator or laser source has a detector for detecting its output signal and for producing a corresponding output signal. A tapping device is connected to tap off a portion of the input modulation signal as a reference signal. The reference signal is compared and subtracted from the detector output signal by a subtraction unit in order to produce an error output signal which will be proportional to the laser noise/distortion components. This error signal is amplified and connected to an external modulator linked to the laser optical output and intensity modulates the laser output signal by the error signal in order to reduce or cancel the noise and distortion components in the signal.
摘要翻译：光调制器或激光源具有用于检测其输出信号并产生相应的输出信号的检测器。连接分接装置以分接输入调制信号的一部分作为参考信号。通过减法单元将参考信号从检测器输出信号进行比较和减去，以产生与激光噪声/失真分量成比例的误差输出信号。该误差信号被放大并连接到与激光光输出连接的外部调制器，并通过误差信号强度调制激光输出信号，以便减少或消除信号中的噪声和失真分量。

4. 发明授权

US5077619A High linearity optical transmitter 失效
标题翻译：高线性光传输器
公开(公告)号：US5077619A
公开(公告)日：1991-12-31
申请号：US427178
申请日：1989-10-25
申请人： Dennis J. Toms
发明人： Dennis J. Toms
IPC分类号： H01L33/00 , H01S5/00 , H04B10/02 , H04B10/04 , H04B10/06 , H04B10/14 , H04B10/155 , H04B10/18
CPC分类号： H04B10/504 , H04B10/5057 , H04B10/58
摘要： An optical transmitter, appropriate for transmitting analog signals in fiber optic systems, having an adjustable distortion device which distorts the input to a light emitter device so as to linearize the overall input-to-output response of the optical transmitter. The optical transmitter further has a feedback circuit optically coupled at its input to the output of the light emitter device and electrically coupled at a plurality of its outputs to a corresponding plurality of inputs of the adjustable distortion device, for altering the degree and kind of distortion in response to the output of the light emitter device in order to adaptively compensating the nonlinearities of the overall system.
摘要翻译：一种适于在光纤系统中传输模拟信号的光发射机，其具有可调整的失真装置，其将输入扭曲到发光器件，以使光发射器的整体输入输出响应线性化。光发射机还具有在其输入端光耦合到发光器件的输出的反馈电路，并将其多个输出电耦合到可调失真装置的对应的多个输入端，以改变失真的程度和种类响应于光发射器件的输出，以便自适应地补偿整个系统的非线性。

5. 发明授权

US4998803A Mounting structure for optical and electro-optical components and method of making same 失效
标题翻译：光学和电光元件的安装结构及其制造方法
公开(公告)号：US4998803A
公开(公告)日：1991-03-12
申请号：US337338
申请日：1989-04-13
申请人： Michael M. Salour , James H. Bechtel
发明人： Michael M. Salour , James H. Bechtel
IPC分类号： G02B7/00
CPC分类号： G02B7/00 , H01S5/02423 , H01S5/4025 , Y10S359/90
摘要： Apparatus for mounting optical and electro-optical components and the like to a substrate to obtain physical mounting and electrical connections, along with heat dissipation. A relief pattern of precisely dimensioned grooves is formed on a substrate surface and the components are mounted in those grooves. The grooves may be partially lined with electrode material to facilitate electrical interconnection between the components and the substrate. The invention also relates to the method of mounting and interconnection.
摘要翻译：用于将光学和电光部件等安装到基板以获得物理安装和电连接以及散热的装置。在基板表面上形成精确尺寸的凹槽的浮雕图案，并且将部件安装在那些凹槽中。槽可以部分地衬有电极材料，以便于部件和基板之间的电互连。本发明还涉及安装和互连的方法。

6. 发明授权

US5381495A Optical fiber coupler or attenuator and method of use thereof 失效
标题翻译：光纤耦合器或衰减器及其使用方法
公开(公告)号：US5381495A
公开(公告)日：1995-01-10
申请号：US943780
申请日：1992-09-11
申请人： Andog Hu
发明人： Andog Hu
IPC分类号： G02B6/28 , G02B6/34 , G02B6/40
CPC分类号： G02B6/2848 , G02B6/29373
摘要： An optical fiber coupler and its method of use are disclosed. In the coupler a centrally located lens is disposed between the ends of the source and outlet optical fibers, the fibers themselves are formed into the most spacing filling configuration at their ends adjacent the lens, and the lens and fiber ends are secured with an adhesive. The lens, fibers and adhesive will all have substantially equivalent indices of refraction so that there is no excessive light attenuation through the lens and adhesive layers. The optical fibers may be glass or polymer, be single or multiple mode, and have uniform, step or graded refractive indices. A wide variety of combinations of fiber bundles, from single fibers to bundles of up to 128 or more fibers, can be coupled through this device. In its method of use aspect, the received fibers are inserted into the sleeve and adhered to the lens with the adhesive, while venting trapped air and excess adhesive.
摘要翻译：公开了一种光纤耦合器及其使用方法。在耦合器中，中心位置的透镜设置在源和光纤的端部之间，纤维本身在其与透镜相邻的端部处形成为最大间隔填充构型，并且透镜和纤维端部用粘合剂固定。透镜，纤维和粘合剂都将具有基本上相等的折射率，使得通过透镜和粘合剂层没有过多的光衰减。光纤可以是玻璃或聚合物，为单模或多模，并且具有均匀的，阶梯或梯度的折射率。可以通过该装置将纤维束的各种组合从单纤维到多达128个或更多纤维的束耦合。在其使用方法中，将接收的纤维插入套筒中并用粘合剂粘附到透镜，同时排出被捕获的空气和多余的粘合剂。

7. 发明授权

US5119448A Modular micro-optical systems and method of making such systems 失效
标题翻译：模块化微光系统及其制造方法
公开(公告)号：US5119448A
公开(公告)日：1992-06-02
申请号：US586453
申请日：1990-09-21
申请人： Stephen R. Schaefer , James H. Bechtel
发明人： Stephen R. Schaefer , James H. Bechtel
IPC分类号： G02B6/28 , G02B6/34 , G02B6/35 , G02B6/36 , G02B6/42 , H04R23/00
CPC分类号： G02B6/3582 , G02B6/2817 , G02B6/29364 , G02B6/29368 , G02B6/4202 , H04R23/008 , G02B6/3514 , G02B6/353 , G02B6/3546 , G02B6/3552 , G02B6/3594 , G02B6/3652 , G02B6/3684 , G02B6/3692
摘要： A method of making modular micro-optical systems of great flexibility and adaptability. A substrate is formed with a relief pattern, optical components such as optical fibers are added, another relief pattern is formed, partially through the optical components, and additional components are added, some coupling with the first components. A third relief pattern is formed, further modifying the substrate surface and the optical components already mounted, and further optical components are added, whereby optical signals can be coupled, modulated, transmitted, detected and switched, among others. The method can be employed to form tactile sensors which may be used with robotic manipulators.
摘要翻译：一种制造具有很大灵活性和适应性的模块化微光学系统的方法。衬底形成有浮雕图案，添加诸如光纤的光学部件，部分地通过光学部件形成另一个凸纹图案，并且添加附加部件，与第一部件一些耦合。形成第三凹凸图案，进一步修改已经安装的基板表面和光学部件，并且添加另外的光学部件，由此光信号可以被耦合，调制，传输，检测和切换等。该方法可用于形成可与机器人操纵器一起使用的触觉传感器。

8. 发明授权

US5111467A Hybrid rugate filter assembly for temperature stabilized emission of grating coupled surface emitting lasers 失效
标题翻译：用于光栅耦合表面发射激光器的温度稳定发射的混合鲁棒滤波器组件
公开(公告)号：US5111467A
公开(公告)日：1992-05-05
申请号：US579602
申请日：1990-09-10
申请人： Eric M. Bradley
发明人： Eric M. Bradley
IPC分类号： G02B5/28 , H01S5/065 , H01S5/14 , H01S5/187 , H01S5/42
CPC分类号： G02B5/289 , H01S5/187 , H01S5/42 , H01S5/065 , H01S5/141
摘要： A dielectric film is deposited on a glass substrate which is transparent to the emission wavelength of a grating coupled surface emitting laser. The dielectric film has a continuously varying refractive index with thickness, usually in the form of a sine wave. The rugate filter is assembled to overlie the second order grating of the laser so that a peak wavelength .lambda..sub.p is reflected back into the second order grating which couples the light into the laser. By reflecting light at the peak wavelength back into the laser, the laser is caused to emit at the desired wavelength. Since the rugate filter selectively reflects light within a narrow band of the desired wavelength, the laser emits light within the same narrow band which can be set to any wavelength by choosing the rugate filter's grating period. The use of a rugate filter separately assembled from the laser permits the creation of a matrix of filters, each filter fabricated to select a discrete wavelength so that a single array of surface emitting lasers can emit at multiple distinct stabilized wavelengths according to the filters in the matrix.
摘要翻译：电介质膜沉积在对光栅耦合表面发射激光器的发射波长透明的玻璃衬底上。电介质膜具有连续变化的厚度的折射率，通常为正弦波的形式。将酸性过滤器组装成覆盖激光器的二阶光栅，使得峰值波长λp被反射回到将光耦合到激光器中的二阶光栅中。通过将峰值波长的光反射回激光器，使激光以期望的波长发射。由于粗糙滤波器选择性地反射所需波长的窄带内的光，所以激光器通过选择粗糙滤光器的光栅周期而在相同的窄带内发射光，该窄带可以设置为任何波长。使用由激光器单独组装的粗糙滤光器允许创建滤光器矩阵，每个滤光器被制造成选择离散的波长，使得单个阵列的表面发射激光器可以以多个不同的稳定波长发射，根据矩阵。

9. 发明授权

US5001937A Optically based torsion sensor 失效
标题翻译：光学扭力传感器
公开(公告)号：US5001937A
公开(公告)日：1991-03-26
申请号：US432075
申请日：1989-11-06
申请人： James H. Bechtel , Stephen R. Schaefer
发明人： James H. Bechtel , Stephen R. Schaefer
IPC分类号： G01L3/12
CPC分类号： G01L3/12
摘要： This invention concerns devices for optical measurement of torsion of a rotating shaft. The measurement system can readily be installed to monitor existing equipment because it requires only that a band consisting of alternating high and low reflectivity regions be placed on the shaft at the locations to be measured. The band may be applied as an adhesive tape, among other possibilities. One sensor head is located to correspond to each band. Each sensor head projects light onto the corresponding band, then collects the light reflected by the high reflectivity region(s) of the band. The phase displacement between the intensities of the reflected light at two or more sensor heads may be used to determine torsion on the rotating shaft.
摘要翻译：本发明涉及用于旋转轴的扭转的光学测量的装置。测量系统可以容易地安装以监测现有的设备，因为它只需要由交替的高反射率区域和低反射区域组成的波段放置在待测量位置的轴上。带可以作为粘合带施加，以及其它可能性。一个传感器头被定位成对应于每个带。每个传感器头将光投射到相应的带上，然后收集由该带的高反射率区域反射的光。可以使用两个或更多个传感器头处的反射光的强度之间的相位位移来确定旋转轴上的扭转。

10. 发明授权

US6014241A Method and apparatus for reducing non-linear characteristics of a signal modulator by cross-correlation 失效
标题翻译：通过互相关来降低信号调制器的非线性特性的方法和装置
公开(公告)号：US6014241A
公开(公告)日：2000-01-11
申请号：US104639
申请日：1998-06-25
申请人： Gary Edwin Winter , Thomas Edward Cooney
发明人： Gary Edwin Winter , Thomas Edward Cooney
IPC分类号： G02F1/01 , G02F1/00
CPC分类号： G02F1/0123 , G02F2203/19
摘要： A pilot signal is generated and injected into the input (108) of a signal modulator (104). The harmonic signal of a pilot signal produced at the output (110) and due to the non-linear transfer function of the signal modulator (104) is coherently sampled in the time domain to produce a plurality of digital samples defining a digital sample signal. The digital sample signal is cross-correlated with a reference signal having a phase based on the pilot signal to produce a cross-correlation signal. The bias voltage at which the signal modulator (104) is biased is adjusted to minimize the difference between the phase of the correlation signal and an optimum phase value corresponding to a linear mode of operation of the signal modulator 104.
摘要翻译：产生导频信号并将其注入信号调制器（104）的输入端（108）。在时域中对在输出端（110）产生的导频信号和由于信号调制器（104）的非线性传递函数产生的导频信号的谐波信号进行相干采样，以产生定义数字采样信号的多个数字样本。数字采样信号与具有基于导频信号的相位的参考信号互相关，以产生互相关信号。调整信号调制器（104）被偏置的偏置电压以最小化相关信号的相位与对应于信号调制器104的线性工作模式的最佳相位值之间的差异。

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