公开(公告)号：US06826327B1

公开(公告)日：2004-11-30

申请号：US10024905

申请日：2001-12-18

申请人： Chang-Hee Lee ,  Wayne V. Sorin ,  Steven L. Shepherd

发明人： Chang-Hee Lee ,  Wayne V. Sorin ,  Steven L. Shepherd

IPC分类号： G02B626

CPC分类号： G02B6/29367 ,  G02B6/29389 ,  G02B6/29395 ,  G02F1/116 ,  G02F1/125 ,  G02F2201/17

摘要： A method, an apparatus and a system are described for receiving an optical signal in an optical filter and routing the optical signal through the optical filter multiple times.

摘要翻译： 描述了一种方法，装置和系统，用于在光学滤波器中接收光信号并且多次通过滤光器路由光信号。

公开(公告)号：US06714565B1

公开(公告)日：2004-03-30

申请号：US09704004

申请日：2000-11-01

申请人： Rodney S. Tucker ,  Wayne V. Sorin

发明人： Rodney S. Tucker ,  Wayne V. Sorin

IPC分类号： H01S310

CPC分类号： G02B6/29358 ,  G01J3/26 ,  G02B6/29395 ,  G02B26/001 ,  G02B26/02

摘要： A tunable optical resonator whose resonance frequency is determined by a light signal introduced into the resonator. The resonator includes an optical cavity having a first mirror and a second mirror. The first mirror and second mirror are supported relative to one another such that the distance between the first and second mirrors may be altered by applying a force to said second mirror thereby altering the resonance frequency of said cavity. The resonator includes a light input port for receiving a tuning light signal, and a light signal generator for generating the tuning light source. The tuning light signal is introduced into the optical cavity such that the tuning light signal is reflected between the first and second mirrors. In the absence of the tuning light signal, the resonator has a resonance characterized by a resonance response curve centered at &lgr;0. The tuning light signal has a wavelength &lgr;1 within said resonance response curve and sufficient power to cause said resonance response curve to shift such that the resonance response curve is now centered at &lgr;2, where &lgr;2>&lgr;1. In one embodiment of the invention, a circuit for monitoring the light leaving the resonator is utilized to control the wavelength and/or amplitude of the tuning light signal such that the light leaving the resonator has a predetermined wavelength.

摘要翻译： 可调谐光谐振器，其谐振频率由引入谐振器的光信号决定。 谐振器包括具有第一反射镜和第二反射镜的光学腔。 第一反射镜和第二反射镜相对于彼此支撑，使得可以通过向所述第二反射镜施加力而改变第一和第二反射镜之间的距离，从而改变所述空腔的共振频率。 谐振器包括用于接收调谐光信号的光输入端口和用于产生调谐光源的光信号发生器。 调谐光信号被引入到光腔中，使得调谐光信号在第一和第二反射镜之间被反射。 在没有调谐光信号的情况下，谐振器具有以以λ0为中心的谐振响应曲线的共振特征。 调谐光信号在所述谐振响应曲线内具有波长λ1，并具有足以使所述共振响应曲线移位的功率，使得谐振响应曲线现在以λ2为中心，其中λ2>λ1。 在本发明的一个实施例中，用于监测离开谐振器的光的电路用于控制调谐光信号的波长和/或振幅，使得离开谐振器的光具有预定的波长。

公开(公告)号：US06548801B1

公开(公告)日：2003-04-15

申请号：US09483177

申请日：2000-01-13

申请人： Wayne V. Sorin ,  Douglas M. Baney

发明人： Wayne V. Sorin ,  Douglas M. Baney

IPC分类号： H01J4014

CPC分类号： H04B10/61 ,  H04B10/614 ,  H04B10/6151 ,  H04B10/64

摘要： An optical heterodyne detection system includes an input signal and a local oscillator signal that are combined in an optical coupler and output as a first beam and a second beam. A polarizing beam splitter is optically connected to the optical coupler in order to receive the first beam and the second beam. The polarizing beam splitter includes four outputs for outputting four beams to four photodetectors including two polarized portions of the first beam and two polarized portions of the second beam. The four photodetectors generate four electrical signals in response to respective ones of the four beams. The four electrical signals are transmitted to a processor and processed to provide an output response that is independent of the polarization state of the original input signal and in which the intensity noise has been suppressed. Processing of the electrical signals to suppress the intensity noise involves canceling the intensity noise component of similarly polarized beams by subtracting the similarly polarized beams. Processing of the electrical signals to provide polarization independence involves squaring the values generated from the two subtraction operations, low pass filtering the values generated from the two squaring operations, and then adding the values generated from the two filtering operations.

摘要翻译： 光外差检测系统包括输入信号和本地振荡器信号，其组合在光耦合器中并作为第一光束和第二光束输出。 偏振分束器光学连接到光耦合器以便接收第一光束和第二光束。 偏振分束器包括四个输出，用于将四个光束输出到四个光电检测器，包括第一光束的两个偏振部分和第二光束的两个偏振部分。 四个光电检测器响应于四个光束中的相应的四个光束产生四个电信号。 四个电信号被发送到处理器并被处理以提供独立于原始输入信号的偏振态的输出响应，并且其中已经抑制了强度噪声。 抑制强度噪声的电信号的处理涉及通过减去相似偏振光束来消除类似偏振光束的强度噪声分量。 电信号的处理以提供偏振独立性涉及平方从两个减法运算产生的值，对从两个平方运算产生的值进行低通滤波，然后将从两个滤波运算产生的值相加。

公开(公告)号：US06538748B1

公开(公告)日：2003-03-25

申请号：US09550548

申请日：2000-04-14

申请人： Rodney S. Tucker ,  Wayne V. Sorin ,  Douglas M. Baney

发明人： Rodney S. Tucker ,  Wayne V. Sorin ,  Douglas M. Baney

IPC分类号： G01B902

CPC分类号： G02B26/02 ,  G01J3/26 ,  G02B26/001 ,  H01S5/041 ,  H01S5/0614 ,  H01S5/06817 ,  H01S5/0687 ,  H01S5/18366

摘要： A tunable optical cavity constructed from a fixed mirror and a movable mirror is disclosed. A circuit applies an electrical potential between first and second electrically conducting surfaces thereby adjusting the distance between the fixed and movable mirrors. The fixed mirror and the moveable mirror are positioned such that the mirrors form the opposite ends of the optical cavity. The distance between the fixed mirror and the moveable mirror is a function of the applied electrical potential. The thermally induced vibrations are reduced by utilizing an electrical feedback circuit that measures the distance between the mirrors. The feedback circuit dynamically changes the potential between the substrate and the support member so as to reduce fluctuations in the cavity resonance frequency.

摘要翻译： 公开了一种由固定镜和可移动镜构成的可调光学腔。 电路在第一和第二导电表面之间施加电势，从而调节固定镜和可移动镜之间的距离。 固定镜和可动镜被定位成使得镜形成光腔的相对端。 固定镜与可动镜之间的距离是施加电位的函数。 通过利用测量反射镜之间的距离的电反馈电路来减少热诱导的振动。 反馈电路动态地改变衬底和支撑构件之间的电位，以便减小空腔谐振频率的波动。

公开(公告)号：US06532322B1

公开(公告)日：2003-03-11

申请号：US09666210

申请日：2000-09-21

申请人： Byoung Yoon Kim ,  Seok Hyun Yun ,  Wayne V. Sorin

发明人： Byoung Yoon Kim ,  Seok Hyun Yun ,  Wayne V. Sorin

IPC分类号： G02B626

CPC分类号： H04J14/0221 ,  G02B6/02052 ,  G02B6/02071 ,  G02B6/021 ,  G02B6/12021 ,  G02B6/14 ,  G02B6/2552 ,  G02B6/266 ,  G02B6/29322 ,  G02F1/0134 ,  G02F1/125 ,  G02F2201/02 ,  H04J14/0201 ,  H04J14/021 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0217

摘要： An optical communication assembly has an optical cross connect coupled to a first, a second, a third and a fourth set of optical fibers. A first demultiplexer is coupled to a first input fiber and the first set of optical fibers and a second demultiplexer is coupled to a second input fiber and the second set of optical fibers. A first multiplexer is coupled to a first output fiber and the third set of optical fibers. A second multiplexer is coupled to a second output fiber and the fourth set of optical fibers. A first set of attenuators is coupled to the third set of optical fibers and a second set of attenuators coupled to the fourth set of optical fibers.

摘要翻译： 光通信组件具有耦合到第一，第二，第三和第四组光纤的光学交叉连接。 第一解复用器耦合到第一输入光纤并且第一组光纤和第二解复用器耦合到第二输入光纤和第二组光纤。 第一多路复用器耦合到第一输出光纤和第三组光纤。 第二多路复用器耦合到第二输出光纤和第四组光纤。 第一组衰减器耦合到第三组光纤，以及耦合到第四组光纤的第二组衰减器。

公开(公告)号：US06510261B2

公开(公告)日：2003-01-21

申请号：US09729661

申请日：2000-12-04

申请人： Wayne V. Sorin ,  Pavel Polynkin ,  Steven L. Shepherd ,  Byoung Yoon Kim ,  Seok Hyun Yun

发明人： Wayne V. Sorin ,  Pavel Polynkin ,  Steven L. Shepherd ,  Byoung Yoon Kim ,  Seok Hyun Yun

IPC分类号： G02B642

CPC分类号： H04J14/0221 ,  G02B6/02071 ,  G02B6/14 ,  G02B6/2552 ,  G02B6/266 ,  G02F1/125 ,  G02F2201/02 ,  H04J14/0212

摘要： An acousto-optic filter includes an optical fiber with a first region and a second region. A first acoustic wave generator is coupled to optical fiber. The first acoustic wave generator produces a first acoustic wave that travels in a first direction in the first region. A backward-propagating wave is generated in response to propagation of the first acoustic wave along the optical fiber. The backward-propagating wave travels in an opposite direction relative to the first acoustic wave. A first acoustic wave propagation member is coupled to the optical fiber. A second acoustic wave generator is coupled to the optical fiber at the second region. The second acoustic wave generator produces a second acoustic wave that combines with the backward propagating acoustic wave.

公开(公告)号：US06343165B1

公开(公告)日：2002-01-29

申请号：US09577202

申请日：2000-05-23

申请人： Byoung Yoon Kim ,  Seok Hyun Yun ,  Hee Su Park ,  Wayne V. Sorin

发明人： Byoung Yoon Kim ,  Seok Hyun Yun ,  Hee Su Park ,  Wayne V. Sorin

IPC分类号： G02B642

CPC分类号： G02F1/125 ,  G02B6/02071 ,  G02F1/0134 ,  G02F2201/02 ,  G02F2203/055 ,  G02F2203/585 ,  H04J14/0201 ,  H04J14/0208 ,  H04J14/0209 ,  H04J14/0213

摘要： An optical add/drop multiplexer includes a mode converter. A first mode coupler is coupled to an input of the mode converter. A second mode coupler is coupled to an output of the mode converter. The mode converter includes an optical fiber with multiple cladding modes and a single core mode guided along a core. An acoustic wave propagation member is coupled to the optical fiber. The acoustic wave propagation member propagates an acoustic wave from its proximal to its distal end. At least one acoustic wave generator is coupled to the proximal end of the acoustic wave propagation member.

摘要翻译： 光分插复用器包括模转换器。 第一模式耦合器耦合到模式转换器的输入端。 第二模式耦合器耦合到模式转换器的输出端。 模式转换器包括具有多个包层模式的光纤和沿核心引导的单个核心模式。 声波传播部件耦合到光纤。 声波传播部件将声波从其近端传播到其远端。 至少一个声波发生器耦合到声波传播构件的近端。

公开(公告)号：US06316764B2

公开(公告)日：2001-11-13

申请号：US09783571

申请日：2001-02-12

申请人： Brian L. Heffner ,  Wayne V. Sorin

发明人： Brian L. Heffner ,  Wayne V. Sorin

IPC分类号： G01J1104

CPC分类号： G01N21/645 ,  G01N2021/6484 ,  G11B7/09 ,  G11B7/1384

摘要： An apparatus for applying an optical signal to a surface and collecting the light leaving the surface in response to the application of the optical signal. The optical signal and the collected light traverse an optical fiber having an end proximate to the surface which delivers light to the surface with the aid of a lens that couples the optical signal to the surface, collects the light emitted by the surface, and couples collected light into the optical fiber. A detector measures the intensity of light delivered into the optical fiber and generates a detection signal indicative of the measured intensity as a function of time. A set of actuators dither the position of the lens relative to the proximate end of the fiber. Each actuator operates at a different dither frequency and moves the lens relative to fiber along a different axis. The average position of the lens relative to the proximate end of the fiber along each axis is adjusted so as to maximize the average power detected at the corresponding dither frequency.

公开(公告)号：US06256103B1

公开(公告)日：2001-07-03

申请号：US09506195

申请日：2000-02-17

申请人： Wayne V. Sorin ,  Douglas M. Baney

发明人： Wayne V. Sorin ,  Douglas M. Baney

IPC分类号： G01B902

CPC分类号： H04B10/60 ,  H04B10/614 ,  H04B10/64

摘要： A system for monitoring an optical signal includes an optical heterodyne detection system in which an input signal and a swept local oscillator signal are combined to generate a combined optical signal. At least two beams of the combined optical signal are filtered by a filter that passes a wavelength band which tracks the wavelength of the swept local oscillator signal. As the local oscillator signal sweeps across a wavelength range, filtering of the beams is adjusted to track the wavelength of the local oscillator signal. Filtering the beams to pass a wavelength band corresponding to the wavelength of the swept local oscillator signal reduces the intensity noise contributed from light sources having wavelengths that are not near the wavelength of the local oscillator signal. Another system for monitoring an optical signal includes an optical heterodyne detection system in which the intensity noise of the input signal and/or the intensity noise of the swept local oscillator signal is reduced before the input signal and the local oscillator signal are combined. An embodiment of the optical heterodyne detection system includes an intensity noise reducer for the input signal and/or an intensity noise reducer for the swept local oscillator signal, an optical combining unit, photodetectors, and may include a processor. Utilizing intensity noise reducers for the input signal and/or the local oscillator signal reduces the intensity noise that is detected by the photodetectors and improves the signal to noise ratio of the heterodyne detection system.

摘要翻译： 用于监视光信号的系统包括光外差检测系统，其中输入信号和扫频本地振荡器信号被组合以产生组合的光信号。 组合光信号的至少两个光束通过滤波器滤波，该滤波器通过跟踪扫描本地振荡器信号的波长的波长带。 当本地振荡器信号扫过波长范围时，调整波束的滤波以跟踪本地振荡器信号的波长。 过滤波束以通过与扫频本地振荡器信号的波长相对应的波长带降低由具有不在本地振荡器信号的波长附近的波长的光源所贡献的强度噪声。 用于监视光信号的另一个系统包括一个光外差检测系统，其中输入信号的强度噪声和/或扫频本地振荡器信号的强度噪声在输入信号和本地振荡器信号组合之前被减小。 光学外差检测系统的一个实施例包括用于输入信号的强度噪声减少器和/或用于扫频本地振荡器信号的强度降噪器，光学组合单元，光电检测器，并且可以包括处理器。 利用用于输入信号和/或本地振荡器信号的强度降噪器降低由光电检测器检测到的强度噪声，并提高外差检测系统的信噪比。

公开(公告)号：US5731876A

公开(公告)日：1998-03-24

申请号：US718077

申请日：1996-09-17

申请人： Shalini Venkatesh ,  Brian L. Heffner ,  Wayne V. Sorin

发明人： Shalini Venkatesh ,  Brian L. Heffner ,  Wayne V. Sorin

IPC分类号： G01B11/06 ,  G01B9/02

CPC分类号： G01B11/0675

摘要： An apparatus and method for measuring the thickness of a film having top and bottom surfaces. The apparatus includes low coherence light source that generates a probe light signal. The film is positioned against a roller having a partially reflecting surface that is positioned at a fixed distance from the film. The probe light signal is applied to the film and is then reflected back through the film by the partially reflecting surface. The light leaving the film is collected to form the input to a receiver that determines the time delay between light reflected from the top and bottom surfaces of the film. The receiver output may also be used to determine the thickness of the various layers in a multi-layer film.

摘要翻译： 一种用于测量具有顶表面和底表面的膜的厚度的装置和方法。 该装置包括产生探测光信号的低相干光源。 薄膜被定位在具有位于离胶片固定距离的部分反射表面的辊子上。 将探测光信号施加到膜上，然后通过部分反射表面反射回膜。 收集离开胶片的光以形成接收器的输入，该接收器确定从胶片的顶表面和底表面反射的光之间的时间延迟。 接收器输出也可用于确定多层膜中各层的厚度。