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21. 发明申请

US20020119400A1 Tunable bragg grating and devices employing the same 有权
标题翻译：可调谐布拉格光栅和采用它的装置
公开(公告)号：US20020119400A1
公开(公告)日：2002-08-29
申请号：US09768048
申请日：2001-01-24
发明人： Ravinder Jain , Balaji Srinivasan
IPC分类号： G02B006/16 , B29D011/00
CPC分类号： G02B6/29322 , G02B6/02195 , G02B6/022 , G02B6/274 , G02B6/2746 , G02B6/29353 , G02B6/29355 , G02B6/4207 , G02F1/011 , G02F1/0115 , G02F1/3558 , G02F2001/212 , G02F2001/215 , G02F2201/307 , G02F2202/06 , G02F2202/07 , G02F2203/055 , G02F2203/07 , G02F2203/585 , G02F2203/62 , H01S3/0675 , H01S3/105
摘要： The present invention relates generally to electro-optically active waveguide segments, and more particularly to the use of a selective voltage input to control the phase, frequency and/or amplitude of a propagating wave in the waveguide. Particular device structures and methods of manufacturing are described herein.
摘要翻译：本发明一般涉及电光学有源波导段，更具体地涉及使用选择性电压输入来控制波导中传播波的相位，频率和/或振幅。本文描述了特定的装置结构和制造方法。

22. 发明授权

US06351586B1 Wavelength dependent phase delay device 失效
标题翻译：波长相关相位延迟器件
公开(公告)号：US06351586B1
公开(公告)日：2002-02-26
申请号：US09473665
申请日：1999-12-29
申请人： Mark F Krol , Yongqian Liu
发明人： Mark F Krol , Yongqian Liu
IPC分类号： G02B626
CPC分类号： G02B6/29353 , G02F1/225 , G02F1/2252 , G02F2201/307
摘要： A Mach-Zehnder device includes a delay element in one arm which delays propagation of light at a first wavelength relative to propagation of light at a second wavelength. The delay element may be made up of a grating having a period which causes coupling of the first wavelength from a first mode into a second mode. In another aspect, the invention includes a second grating positioned downstream from the first grating and having a period which causes coupling of the portion of light from the second propagation mode back into the first propagation mode. Also disclosed is an optical waveguide in which light at a wavelength &lgr; can propagate in at least a first and a second mode. The waveguide has an effective index of refraction n1 with respect to the first propagation mode of &lgr;, and an effective index of refraction n2 with respect to the second propagation mode. A grating formed in said waveguide and having a period approximately equal to(&lgr;/2)(n1−n2).
摘要翻译：马赫 - 策德尔（Mach-Zehnder）装置包括一个臂中的延迟元件，该延迟元件相对于在第二波长处的光的传播来延迟第一波长的光的传播。延迟元件可以由具有使第一波长从第一模式耦合到第二模式的周期的光栅组成。在另一方面，本发明包括位于第一光栅下游的第二光栅，并且具有使来自第二传播模式的光部分的耦合返回到第一传播模式的周期。还公开了一种光波导，其中波长λ的光可以在至少第一和第二模式中传播。波导相对于羔羊的第一传播模式具有有效折射率n1，相对于第二传播模式具有有效的折射率n2。形成在所述波导中并且具有大约等于（lambd / 2）（n1-n2）的周期的光栅。

23. 发明授权

US06304380B1 Reducing polarization dependency of optical apparatus 有权
标题翻译：降低光学装置的极化依赖性
公开(公告)号：US06304380B1
公开(公告)日：2001-10-16
申请号：US09520828
申请日：2000-03-06
申请人： Christopher Richard Doerr
发明人： Christopher Richard Doerr
IPC分类号： G02B2728
CPC分类号： G02B6/272 , G02B6/2746 , G02B6/2793 , G02B6/29317 , G02B6/29353 , Y10S359/90
摘要： Polarization dependencies exhibited by components of optical apparatus, such as equalizers having chromatically variable transmissivity, are reduced by splitting the incoming light stream to be equalized into two orthogonally polarized streams which are applied to opposite ends of the apparatus through polarization maintaining fibers oriented such that the light polarization is the same for both directions of transmission through the apparatus and is aligned with one of the eigenpolarizations of the chip on which the apparatus is implemented. In an illustrative embodiment of an equalizer, the incoming light stream entering one port of a circulator and emerging from a second port is applied to the splitter on its way to the equalizer while the light streams emerging from the equalizer, after being spectrally recombined, re-enter the second port of the circulator and emerge from its third port to the output thereby eliminating any polarization dependencies of the equalizer.
摘要翻译：通过将入射光流分成两个正交极化流，将入射光流分成两个通过偏振保持光纤取向的相反端，从而减少光学装置的部件（例如具有可变透射率的均衡器）所呈现的极化依赖性，使得光偏振对通过装置的透射的两个方向是相同的，并且与其上实现该装置的芯片的特征极化相对准。在均衡器的说明性实施例中，进入循环器的一个端口并从第二端口出来的入射光流在其到达均衡器的途中被施加到分离器，而在光谱重新组合之后从均衡器出射的光流重新 - 进入循环器的第二个端口并从其第三个端口出现到输出端，从而消除均衡器的任何极化依赖性。

24. 发明授权

US06289151B1 All-pass optical filters 有权
标题翻译：全通光学滤光片
公开(公告)号：US06289151B1
公开(公告)日：2001-09-11
申请号：US09182980
申请日：1998-10-30
申请人： Rudolf Feodor Kazarinov , Gadi Lenz , Christi Kay Madsen , Ronald Edward Scotti
发明人： Rudolf Feodor Kazarinov , Gadi Lenz , Christi Kay Madsen , Ronald Edward Scotti
IPC分类号： G02B626
CPC分类号： G02B6/29343 , B82Y20/00 , G02B6/1225 , G02B6/2861 , G02B6/29353 , G02B6/29356 , G02B6/29394 , H04B10/25133 , H04L25/03057
摘要： An all-pass optical filter which reduces the dispersion of optical pulses transmitted therethrough is disclosed. The all-pass optical filter reduces the dispersion of optical pulses by applying a desired phase response to optical pulses transmitted therethrough. The all-pass optical filter also has a frequency independent amplitude response. The all-pass optical filter has a structure which includes at least one feedback path, a splitter/combiner, an input port, and an output port.
摘要翻译：公开了一种减少透过其的光脉冲的色散的全通滤光器。全通光学滤波器通过对从其传输的光脉冲施加期望的相位响应来减小光脉冲的色散。全通光学滤波器也具有频率无关的幅度响应。全通光学滤波器具有包括至少一个反馈路径，分离器/组合器，输入端口和输出端口的结构。

25. 发明授权

US06226091B1 Optical fiber Mach-Zehnder interferometer fabricated with asymmetric couplers 有权
标题翻译：用不对称耦合器制造的光纤马赫 - 曾德干涉仪
公开(公告)号：US06226091B1
公开(公告)日：2001-05-01
申请号：US09404083
申请日：1999-09-23
申请人： Colm V. Cryan
发明人： Colm V. Cryan
IPC分类号： G01B902
CPC分类号： G02B6/29352 , G02B6/2835 , G02B6/29317 , G02B6/29332 , G02B6/29353 , G02B6/29355
摘要： An asymmetric optical fiber Mach-Zehnder interferometer has first and second optical fibers connected at a first coupling region and a second coupling region. The first and second optical fibers form two interfering arms between the first and second coupling regions. To form the asymmetry, the propagation constant in a portion of the first optical fiber in one of the coupling regions differs from the propagation constant in a portion of the second optical fiber in that coupling region. The asymmetric structure provides 30 dB isolation over a greater wavelength span.
摘要翻译：不对称光纤马赫 - 策德尔干涉仪具有在第一耦合区域和第二耦合区域连接的第一和第二光纤。第一和第二光纤在第一和第二耦合区域之间形成两个干涉臂。为了形成不对称性，耦合区域之一中的第一光纤的一部分中的传播常数与该耦合区域中的第二光纤的一部分的传播常数不同。不对称结构在更大的波长跨度上提供30 dB的隔离度。

26. 发明授权

US06178021B1 System for compensating polarization dispersion of channels in a wavelength-division multiplex signal 失效
标题翻译：用于补偿波分复用信号中信道偏振色散的系统
公开(公告)号：US06178021B1
公开(公告)日：2001-01-23
申请号：US09340125
申请日：1999-06-28
申请人： Franck Bruyere , Denis Penninckx
发明人： Franck Bruyere , Denis Penninckx
IPC分类号： H04J1406
CPC分类号： G02B6/278 , G02B6/274 , G02B6/29317 , G02B6/29319 , G02B6/29353 , H04B10/2572 , H04J14/0219
摘要： The invention concerns a system for compensating polarization dispersion of channels in a wavelength-division multiplex signal. In accordance with the invention, the system comprises a plurality of cascaded polarization control modules respectively associated with said channels and a common differential delay generator. Each polarization control module comprises a drop and insert multiplexer for extracting the signal from the associated channel from the input multiplex signal and inserting a modified channel supplied by a polarization controller. The system further comprises a control loop for controlling the polarization controllers in response to the optical properties of the channel signals at the output of the differential delay generator and obtaining a compensated multiplex signal.
摘要翻译：本发明涉及用于补偿波分复用信号中的信道的偏振色散的系统。根据本发明，该系统包括分别与所述通道相关联的多个级联偏振控制模块和公共差分延迟发生器。每个偏振控制模块包括一个输入和多路复用器，用于从输入多路复用器中提取相关信道的信号信号和插入由偏振控制器提供的修改的通道。该系统还包括控制回路，用于响应于在差分延迟发生器的输出处的通道信号的光学特性来控制偏振控制器并获得经补偿的多路复用信号。

27. 发明授权

US6160627A Optical fiber Mach-Zehnder interferometer filter 失效
标题翻译：光纤马赫 - 曾德尔干涉仪滤波器
公开(公告)号：US6160627A
公开(公告)日：2000-12-12
申请号：US315998
申请日：1999-05-21
申请人： Joon Tae Ahn , Hak Kyu Lee , Min Yong Jeon , Dong Sung Lim , Kyong Hon Kim , El Hang Lee
发明人： Joon Tae Ahn , Hak Kyu Lee , Min Yong Jeon , Dong Sung Lim , Kyong Hon Kim , El Hang Lee
IPC分类号： G02B6/34 , G01B9/02
CPC分类号： G02B6/29353
摘要： An optical fiber Mach-Zehnder interferometer optical filter is disclosed. The filter includes a stabilization light source for varying a first wavelength of a light signal for stabilizing a Mach-Zehnder interferometer, first and second optical fiber couplers for receiving an optical signal from the stabilization light source and an optical signal of a second wavelength different from a first wavelength inputted from an input port and dividing into two parts having the same intensity for thereby forming a Mach-Zehnder interferometer, a polarization controller connected with one side of the first optical fiber coupler for controlling a polarization of the interfered light of the interferometer, first and second wavelength division multiplex optical couplers connected with the second optical fiber coupler for separately outputting a first wavelength optical signal and a second wavelength optical signal, an optical fiber phase modulator connected with the other side of the first optical fiber coupler for varying the length of the optical fiber in accordance with a fed-back phase difference, and a stabilization circuit for receiving two optical signals of the first wavelength from the first and second wavelength division multiplex optical couplers and feeding back the phase difference to the optical fiber phase modulator for thereby implementing a constant optical path difference of the interferometer.
摘要翻译：公开了一种光纤马赫 - 曾德干涉仪滤光器。滤光器包括用于改变用于稳定马赫 - 曾德干涉仪的光信号的第一波长的稳定光源，用于从稳定光源接收光信号的第一和第二光纤耦合器以及不同于从输入端口输入的第一波长并分成具有相同强度的两个部分，从而形成马赫 - 策德尔干涉仪;偏振控制器，与第一光纤耦合器的一侧连接，用于控制干涉仪的干涉光的偏振与第二光纤耦合器连接的第一和第二波分复用光耦合器，用于分别输出第一波长光信号和第二波长光信号;光纤相位调制器，与第一光纤耦合器的另一侧连接，用于改变根据光纤的长度反馈相位差，以及稳定电路，用于从第一和第二波分复用光耦合器接收第一波长的两个光信号，并将相位差反馈到光纤相位调制器，从而实现恒定的光程差的干涉仪。

28. 发明授权

US6091535A Optical transmitter and optical transmission system with switchable chirp polarity 有权
标题翻译：光发射机和光传输系统具有可切换的啁啾极性
公开(公告)号：US6091535A
公开(公告)日：2000-07-18
申请号：US221156
申请日：1998-12-28
申请人： Hideaki Satoh
发明人： Hideaki Satoh
IPC分类号： H04B10/40 , G02B6/34 , G02F1/01 , G02F1/21 , H04B10/07 , H04B10/2507 , H04B10/50 , H04B10/516 , H04B10/588 , H04B10/60 , H04B10/61 , G02B26/00 , G02F1/035 , H04B10/04
CPC分类号： G02F1/0123 , H04B10/25137 , H04B10/505 , H04B10/50575 , H04B10/564 , H04B10/58 , G02B6/29353 , G02F2001/212
摘要： An optical transmitter has a Mach-Zehnder modulator, and a feedback loop that controls the bias voltage supplied to the modulator according to the insertion loss of the modulator, to compensate for DC drift in the attenuation characteristic of the modulator. The feedback loop can be switched to provide negative feedback on either the positive or negative slope of the attenuation characteristic. Switching the slope switches the polarity of the chirp generated by the modulator, enabling positive or negative chirp to be selected, whichever produces the least dispersion penalty. Since switching the slope also switches the polarity of the modulated signal, an optical transmission system using this optical transmitter has an additional circuit that selectively inverts the transmitted or received signal.
摘要翻译：光发射机具有马赫 - 曾德尔（Mach-Zehnder）调制器，以及反馈回路，根据调制器的插入损耗来控制提供给调制器的偏置电压，以补偿调制器的衰减特性中的直流漂移。可以切换反馈回路以在衰减特性的正或负斜率上提供负反馈。切换斜率可以切换由调制器产生的线性调频脉冲的极性，从而能够选择正或负啁啾，无论哪一种产生最小的色散损失。由于切换斜率还切换了调制信号的极性，所以使用该光发射机的光传输系统具有选择性地反转发射或接收信号的附加电路。

29. 发明授权

US6035080A Reconfigurable add-drop multiplexer for optical communications systems 失效
标题翻译：用于光通信系统的可重配置分插复用器
公开(公告)号：US6035080A
公开(公告)日：2000-03-07
申请号：US879929
申请日：1997-06-20
申请人： Charles Howard Henry , Gadi Lenz , Yuan P. Li , Christi Kay Madsen , Herman Melvin Presby , Ronald Edward Scotti
发明人： Charles Howard Henry , Gadi Lenz , Yuan P. Li , Christi Kay Madsen , Herman Melvin Presby , Ronald Edward Scotti
IPC分类号： G02B6/34 , H04J14/02 , H04Q11/00
CPC分类号： G02B6/12007 , H04J14/0206 , H04J14/0212 , H04Q11/0005 , G02B6/29319 , G02B6/29353 , G02B6/29355 , G02B6/29383 , G02B6/3508 , G02B6/3596 , H04J14/0204 , H04J14/0205 , H04Q2011/0022 , H04Q2011/0035
摘要： In accordance with the invention, an optical multiplexer includes at least one reconfigurable add-drop unit that can add-drop one channel out of a large set by switching the light path through one of a set of fixed add-drop filters. Reconfiguration is done by switching from the add-drop filter path to a bypass path, changing to a different add-drop filter and then switching back. The phase delay of the bypass path is adjusted to maintain nearly maximum transmission during switching. The selection among add-drop filters is done by sliding an integrated optic chip with the set of add-drop filters between input and output waveguides. The reconfigurable add-drop multiplexer unit is latchable, passive between reconfigurations, and has low intrinsic insertion loss. Plural units in series can add/drop plural channels.
摘要翻译：根据本发明，光复用器包括至少一个可重新配置的分插单元，其可以通过将一组通道中的一个固定分插滤波器切换成一个通道，从而将一个通道从大组中分出。重新配置是通过从分插过滤器路径切换到旁路路径，切换到不同的添加 - 删除过滤器，然后切换完成的。调整旁路路径的相位延迟，以保持切换期间接近最大的传输。通过在输入和输出波导之间使用一组加法滤波器滑动集成光学芯片来完成插入式滤波器之间的选择。可重新配置的分插复用器单元可重新配置之间是可锁定的，无源的，并具有低内在插入损耗。串联的多个单元可以添加/删除多个通道。

30. 发明授权

US5861967A Wavelength multiplexed light transfer unit and wavelength multiplexed light transfer system 失效
标题翻译：波长复用光传输单元和波长复用光传输系统
公开(公告)号：US5861967A
公开(公告)日：1999-01-19
申请号：US70560
申请日：1998-04-30
申请人： Takashi Mizuochi , Tadayoshi Kitayama
发明人： Takashi Mizuochi , Tadayoshi Kitayama
IPC分类号： H04J14/00 , G02B6/12 , G02B6/34 , H04B10/038 , H04B10/079 , H04B10/2507 , H04B10/27 , H04B10/272 , H04B10/275 , H04B10/29 , H04B10/291 , H04J14/02
CPC分类号： G02B6/29395 , G02B6/02085 , G02B6/02138 , G02B6/29353 , G02B6/29355 , G02B6/29358 , H04J14/0201 , H04J14/0204 , H04J14/0205 , H04J14/0213 , H04J14/0217 , G02B6/29317 , H04J14/02 , H04J14/0206 , H04J14/0221
摘要： A branch circuit is formed by forming an optical filter by means of connecting a wavelength selective reflector to between two units of directional coupler and further assembling three units of the optical filter. In the branch circuit, the three optical filters are connected to each other so that the light coming in from a first optical filter is outputted to a third optical filter when the wave length selective reflector reflects the light, and to a second optical filter when the wavelength selective reflector passes the light therethrough; the light coming in from the second optical filter is outputted to the first optical filter when the wavelength selective reflector reflects the light, and to the third filter when the wavelength selective reflector passes the light therethrough; and also the light coming in from the third optical filter is outputted to the second optical filter when the wavelength selective reflector reflects the light and to the first optical filter when the wavelength selective reflector passes the light therethrough.
摘要翻译：通过将波长选择性反射器连接到两个定向耦合器单元之间并且进一步组装光学滤波器的三个单元，形成滤光器形成分支电路。在分支电路中，三个滤光器彼此连接，使得当波长选择反射器反射光时，从第一滤光器入射的光被输出到第三滤光器，并且当第二滤光器波长选择反射器使光通过其中; 当波长选择反射器反射光时，从第二滤光器入射的光被输出到第一滤光器，当波长选择反射器通过光时，输出到第三滤光器; 并且当波长选择反射体反射光时，从第三滤光器入射的光也被输出到第二滤光器，并且当波长选择反射器通过光时，输出到第一滤光器。

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