-
公开(公告)号：US20040234273A1
公开(公告)日：2004-11-25
申请号：US10873897
申请日：2004-06-21
IPC分类号： H04B010/12
CPC分类号： H04B10/64 , H04B10/25752 , H04B10/60
摘要： In a method and apparatus for converting optical wavelength division multiplexed channels to wireless channels, the information carrying optical carriers are first de-multiplexed and each optical carrier is then extracted from the data using an optical channelizing technique. The optical frequency of each of the extracted optical carriers is then shifted by an amount equal to the desired wireless carrier frequencies in the broadband wireless channels. Optical heterodyning of the frequency-shifted extracted lightwave carriers with the original data-containing optical signals, which are mutually in phase coherence, in a photodetector results in a set of wireless carriers each modulated with the data carried by the corresponding optical channel.
-
公开(公告)号：US20030189712A1
公开(公告)日：2003-10-09
申请号：US09849641
申请日：2001-05-04
IPC分类号： G01B009/02
CPC分类号： G01H9/00
摘要： A vibrometer for probing an object to determine its vibratory signature and a method of probing same. The vibrometer includes a laser for generating a laser beam for probing the object; a detector for detecting reflections from the object; and a two beam input phase-conjugate mirror located so as to receive a portion of the laser beam produced by the laser and a portion of the laser beam reflected from the object, the two input beam phase-conjugate mirror reflecting received diffuse signals from the object back towards the object.
摘要翻译： 用于探测物体以确定其振动特征的振动计和探测方法。 振动计包括用于产生用于探测物体的激光束的激光器; 用于检测来自物体的反射的检测器; 以及双光束输入相位共轭反射镜，其被设置为接收由激光器产生的激光束的一部分和从物体反射的激光束的一部分，两个输入光束相位共轭反射镜反射来自 反对物体。
-
公开(公告)号：US20020186919A1
公开(公告)日：2002-12-12
申请号：US09877976
申请日：2001-06-08
发明人： David M. Pepper
IPC分类号： G02B006/26 , G02F001/153
CPC分类号： G02F1/011 , G02F1/292 , G02F2201/20 , G02F2201/302
摘要： A programmable electro-optically controlled optical delay device providing multiple optical outputs. The optical delay device provides multiple output ports where the optical propagation delay increases at each port. An incident optical beam is propagated within electro-optically active material within the device, so that the propagation delay at each output port may be varied according to an applied voltage. In an optical beam steering system, the present invention provides true-time delay for multiple optical beams, allowing the beams radiated by the beam steering system to be time-coincident. The present invention provides for one or two dimensional beam steering.
摘要翻译： 提供多个光输出的可编程电光控制光延迟器件。 光延迟器件提供多个输出端口，其中光传播延迟在每个端口处增加。 入射光束在装置内的电光活性材料内传播，使得每个输出端口处的传播延迟可以根据所施加的电压而变化。 在光束转向系统中，本发明为多个光束提供实时延迟，允许由光束转向系统辐射的光束与时间重合。 本发明提供一维或二维光束转向。
-
公开(公告)号：US20020154377A1
公开(公告)日：2002-10-24
申请号：US09759820
申请日：2001-01-11
发明人： David M. Pepper
IPC分类号： G02F001/03 , G02F001/07
CPC分类号： G02F1/13471 , G02F1/292 , G02F2001/133638
摘要： A optical phased array device for optical beams with general polarization. A reflective embodiment of the inventive optical phased array interposes a quarter-wave plate between a linearly polarized liquid crystal layer and a mirror. A controllable voltage applied across the liquid crystal layer causes a first linearly polarized component of an incident optical beam to be phase shifted when it passes through the liquid crystal layer. The polarization of the optical beam is rotated by 90null when it travels through the quarter-wave plate, is reflected from the mirror, and travels back through the quarter-wave plate. The second linearly polarized component of the optical beam, orthogonal to the first, is phase shifted when it passes back through the liquid crystal layer. A transmissive embodiment of the inventive optical array interposes a half-wave plate between two linearly polarized liquid crystal layers. The first linearly polarized component is phase shifted by the first liquid crystal layer and the second component, orthogonal to the first, is phase shifted by the second layer.
摘要翻译： 一种具有一般偏振光束的光学相控阵器件。 本发明的光学相控阵列的反射实施例将四分之一波片介于线偏振液晶层和反射镜之间。 在液晶层两端施加的可控电压使得入射光束的第一直线偏振分量在通过液晶层时相移。 当光束穿过四分之一波片时，光束的偏振旋转90°，从反射镜反射并返回穿过四分之一波片。 与第一个正交的光束的第二个线性偏振分量在通过液晶层时相移。 本发明的光学阵列的透射实施例将半波片介于两个线性偏振液晶层之间。 第一线性偏振分量被第一液晶层相移，与第一液晶层正交的第二分量被第二层相移。
-
公开(公告)号：US20020163697A1
公开(公告)日：2002-11-07
申请号：US09848563
申请日：2001-05-03
发明人： David M. Pepper
IPC分类号： H04B010/00
CPC分类号： H04B10/1125 , Y10S359/90
摘要： This invention provides a dynamic interconnection system which allows to couple a pair of optical beams carrying modulation information. In accordance with this invention, two optical beams emanate from transceivers at two different locations. Each beam may not see the other beam point of origin (non-line-of-sight link), but both beams can see a third platform that contains the system of the present invention. Each beam incident on the interconnection system is directed into the reverse direction of the other, so that each transceiver will detect the beam which emanated from the other transceiver. The system dynamically compensates for propagation distortions preferably using closed-loop optical devices, while preserving the information encoded on each beam.
摘要翻译： 本发明提供了一种动态互连系统，其允许耦合一对携带调制信息的光束。 根据本发明，两个光束在两个不同位置从收发器发出。 每个光束可能看不到另一个光束原点（非视距链路），但是两个光束可以看到包含本发明的系统的第三平台。 入射在互连系统上的每个光束被引导到另一个的相反方向，使得每个收发器将检测从另一个收发器发出的光束。 该系统优选地使用闭环光学装置来动态地补偿传播失真，同时保留在每个波束上编码的信息。
-
公开(公告)号：US20040125380A1
公开(公告)日：2004-07-01
申请号：US10329900
申请日：2002-12-26
发明人： David M. Pepper
IPC分类号： G01B011/02
CPC分类号： G02F1/135 , G01J9/02 , G02B26/06 , G02B27/0025 , G02F2203/18
摘要： A system for wavefront aberration reduction of an incident optical beam. The system includes a spatial light modulator for receiving the incident optical beam and forming an output optical beam, the output beam being aberration-reduced compared to the incident beam; a common-path interferometer for receiving a portion of the output optical beam and for generating an interference fringe pattern by introducing a phase shift to one part of said portion of the output optical beam, the interference fringe pattern being applied to said spatial light modulator and comprising essentially all of the light available in said portion of the output optical beam; wherein the interference fringe pattern is representative of the wavefront error of the incident optical beam and the interference fringe pattern activates said spatial light modulator such that said spatial light modulator performs wavefront error correction on the output optical beam.
摘要翻译： 用于入射光束的波前像差减小的系统。 该系统包括用于接收入射光束并形成输出光束的空间光调制器，与入射光束相比，输出光束减小; 用于接收输出光束的一部分并用于通过向输出光束的所述部分的一部分引入相移来产生干涉条纹图案的干涉条纹干涉仪，所述干涉条纹图案被施加到所述空间光调制器，以及 包括在输出光束的所述部分中可用的基本上所有的光; 其中所述干涉条纹图案代表所述入射光束的波前误差，并且所述干涉条纹图案激活所述空间光调制器，使得所述空间光调制器对所述输出光束执行波前误差校正。
-
公开(公告)号：US20040101317A1
公开(公告)日：2004-05-27
申请号：US10630189
申请日：2003-07-29
发明人： Daniel Yap , David M. Pepper , Gilmore J. Dunning
IPC分类号： H04B010/04
CPC分类号： H04B10/50
摘要： An optical frequency modulated transmitter includes a plurality of separately phased-controlled slave lasers, the outputs of which are combined to form a single output beam of the transmitter. A master optical oscillator outputs an optical signal for injection locking the plurality of slave lasers, the optical signal being frequency modulated directly in the master optical oscillator or externally thereof. Additionally, a method of frequency modulating an optical beam is disclosed using a plurality of slave lasers. Each of the slave lasers has an output, the outputs of which are combined to form the optical beam. The plurality of slave lasers is injection locked to an optical output of a master oscillator. The optical output of the master oscillator is frequency modulated before the optical output is applied to the plurality of lasers. Each slave laser of the plurality is phased controlled relative to other slave lasers of the plurality.
摘要翻译： 光调制发射机包括多个单独定相控制的从属激光器，其输出被组合以形成发射机的单个输出光束。 主光学振荡器输出用于注入锁定多个从属激光器的光信号，该光信号直接在主光学振荡器中或其外部进行频率调制。 此外，公开了一种使用多个从属激光器对光束进行频率调制的方法。 每个从属激光器具有输出，其输出被组合以形成光束。 多个从属激光器被注入锁定到主振荡器的光输出。 在将光输出施加到多个激光器之前，主振荡器的光输出被调频。 多个的每个从属激光器相对于多个其他从属激光器被相位控制。
-
8.发明申请Coherent detecting receiver using a time delay interferometer and adaptive beam combiner 失效相干检测接收机采用时延干涉仪和自适应光束组合器公开(公告)号：US20020131050A1
公开(公告)日：2002-09-19
申请号：US09808472
申请日：2001-03-14
IPC分类号： G01B011/02
CPC分类号： H04B10/60
摘要： An optical apparatus for coherent detection of an input optical beam. The apparatus includes a beam splitter for splitting the input optical beam into a first component and a second component; an optical delay device arranged to receive the second component, the optical delay device imposing an intentional delay in the second component of the input optical beam; and an adaptive beam combiner coupled to receive the second component with a delay imposed thereon by the optical delay device; and the first component from the beam splitter. The adaptive beam combiner has two exiting components: a first exiting component being representative of the difference of the first and second components received thereby and a second exiting component being representative of the sum of the first and second components received thereby. A detector arrangement is provided for receiving and detecting the first and second exiting components from the adaptive beam combiner.
摘要翻译： 一种用于相干检测输入光束的光学装置。 该装置包括用于将输入光束分成第一部件和第二部件的分束器; 布置成接收第二分量的光学延迟装置，所述光学延迟装置在输入光束的第二分量中施加有意延迟; 以及耦合以由所述光学延迟装置施加在其上的延迟来接收所述第二部件的自适应光束组合器; 和分束器的第一个部件。 自适应波束组合器具有两个出发分量：第一出射分量代表由此接收的第一和第二分量的差异，第二出射分量代表由此接收的第一和第二分量之和。 提供了一种检测器装置，用于从自适应光束组合器接收和检测第一和第二出射分量。
-
公开(公告)号：US20040228638A1
公开(公告)日：2004-11-18
申请号：US10873898
申请日：2004-06-21
IPC分类号： H04B010/04
CPC分类号： H04B10/64 , H04B10/25752 , H04B10/60
摘要： In a method and apparatus for converting optical wavelength division multiplexed channels to wireless channels, the information carrying optical carriers are first de-multiplexed and each optical carrier is then extracted from the data using an optical channelizing technique. The optical frequency of each of the extracted optical carriers is then shifted by an amount equal to the desired wireless carrier frequencies in the broadband wireless channels. Optical heterodyning of the frequency-shifted extracted lightwave carriers with the original data-containing optical signals, which are mutually in phase coherence, in a photodetector results in a set of wireless carriers each modulated with the data carried by the corresponding optical channel.
摘要翻译： 在将光波分复用信道转换为无线信道的方法和装置中，首先对携带载波的光载波进行解复用，然后使用光信道化技术从数据中提取每个光载波。 然后，每个提取的光载波的光频率移动等于宽带无线信道中期望的无线载波频率的量。 在光电检测器中具有相位相干的带原始数据的光信号的频移提取的光波载波的光学外差产生一组无线载波，每一个无线载波用相应光信道承载的数据进行调制。
-
公开(公告)号：US20020068018A1
公开(公告)日：2002-06-06
申请号：US09732833
申请日：2000-12-06
IPC分类号： G01N021/00
CPC分类号： G01N21/7746 , G01N21/031 , G01N21/774
摘要： A compact sensor for detection of chemical and/or biological compounds in low concentration. The sensor comprises electromagnetic microcavities. The agent to be detected passes the microcavities, is absorbed and/or absorbed by the microcavities, and modifies the electromagnetic field inside the microcavities. After the agent has been adsorbed and/or absorbed, a probe beam is applied to the microcavities. The change of electromagnetic field is detected by the detector, and the frequency of the probe beam at which the resonance is observed, is indicative of a particular agent being present. A method for detecting chemical and/or biological compounds using the sensor.
摘要翻译： 用于检测低浓度化学和/或生物化合物的紧凑型传感器。 该传感器包括电磁微腔。 要检测的试剂通过微腔，被微腔吸收和/或吸收，并且修改微腔内的电磁场。 在试剂被吸附和/或吸收之后，将探针束施加到微腔。 由检测器检测电磁场的变化，并且观察到共振的探测光束的频率表示存在特定的试剂。 使用该传感器检测化学和/或生物化合物的方法。
-
-
-
-
-
-
-
-
-
搜索结果
10 条记录 (耗时 0.014 秒)
