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31. 发明授权

US07343066B2 Reconfigurable optical add/drop multiplexer 失效
标题翻译：可重配置的光分插复用器
公开(公告)号：US07343066B2
公开(公告)日：2008-03-11
申请号：US11204624
申请日：2005-08-16
申请人： Christopher Richard Doerr , Jean Gerardus Leonardus Jennen
发明人： Christopher Richard Doerr , Jean Gerardus Leonardus Jennen
IPC分类号： G02B6/26
CPC分类号： G02B6/29395 , G02B6/12007 , G02B6/12021 , G02B6/2713 , G02B6/2746 , G02B6/2766 , G02B6/2773 , G02B6/29383
摘要： A reconfigurable optical add/drop multiplexer (ROADM) includes a first optical dynamic gain equalization filter (DGEF) having a first input for receiving an initial wavelength division multiplexed (WDM) signal, a first output for sending a phase shifted WDM signal, and a second output connected to a demultiplexer for demultiplexing a WDM drop signal thereby producing a plurality of drop channels. A second DGEF having a first input for receiving the phase shifted WDM signal, a second input connected to a multiplexer, for multiplexing a plurality of add channels to produce thereby a wavelength division multiplexed (WDM) add signal, and an output for sending a second adjusted WDM signal. The ROADM allows for the channels from the initial WDM signal to be dropped, added and equalized.
摘要翻译：可重新配置的光分插复用器（ROADM）包括第一光学动态增益均衡滤波器（DGEF），其具有用于接收初始波分复用（WDM）信号的第一输入端，用于发送相移WDM信号的第一输出端，以及第二输出连接到解复用器，用于对WDM丢弃信号进行解复用，从而产生多个丢弃信道。具有用于接收相移WDM信号的第一输入端的第二DGEF，连接到多路复用器的第二输入端，用于多路复用多个附加通道以产生波分复用（WDM）加法信号，以及用于发送第二调整后的WDM信号。 ROADM允许来自初始WDM信号的信道被丢弃，相加和均衡。

32. 发明授权

US07327956B2 Method and apparatus for mitigating intersymbol interference from optical filtering 失效
标题翻译：减轻光学滤波中符号间干扰的方法和装置
公开(公告)号：US07327956B2
公开(公告)日：2008-02-05
申请号：US10955229
申请日：2004-09-30
申请人： Christopher Richard Doerr , Daniel A. Fishman , Xiang Liu
发明人： Christopher Richard Doerr , Daniel A. Fishman , Xiang Liu
IPC分类号： H04J14/02
CPC分类号： H04B10/2941 , G02B6/29382
摘要： A method and apparatus for mitigating intersymbol interference (ISI) from narrow-band optical filtering and improving transmission performance by filtering multichannel optical signals using an optical filter device that exhibits a desired loss ripple in the transmittance profile of the filter passband.
摘要翻译：一种通过窄带光学滤波来减轻符号间干扰（ISI）的方法和装置，并且通过使用在滤波器通带的透射率分布中表现出期望的损耗波动的滤光器件对多通道光信号进行滤波来提高传输性能。

33. 发明授权

US07181104B2 Optical monitor and a method for improved optical monitoring 有权
标题翻译：光学监视器和改进光学监控的方法
公开(公告)号：US07181104B2
公开(公告)日：2007-02-20
申请号：US10657863
申请日：2003-09-09
申请人： Christopher Richard Doerr
发明人： Christopher Richard Doerr
IPC分类号： G02B6/26
CPC分类号： H04B10/07955 , G02B6/12021 , G02B6/2793 , G02B6/29347 , G02B6/29355 , G02B6/29395 , G02B6/29397 , H04B10/077 , H04J14/0227
摘要： The inventor proposes herein a novel optical monitor requiring only a single fiber-coupled photodetector. In one embodiment of the present invention, the optical monitor further includes an optical coupler for tapping a portion of an optical signal, a tunable filter for filtering the tapped optical signal at a predetermined frequency, and a Faraday rotator mirror for removing any polarization dependence of the tapped optical signal and for reflecting the filtered optical signal back through the tunable filter and the coupler. Subsequently, the photodetector of the optical monitor measures the power of the filtered optical signal. The optical spectrum of the optical signal is thus measured by scanning the tunable filter across the band of the optical signal and measuring the power of the optical signal as a function of the optical frequency of the tunable filter.
摘要翻译：发明人在此提出了仅需要单个光纤耦合光电探测器的新型光学监视器。在本发明的一个实施例中，光学监视器还包括一个光耦合器，用于抽出一部分光信号，一个可调谐滤波器，用于以预定频率对抽头的光信号进行滤波;以及法拉第旋转镜，经过抽头的光学信号，并将经滤波的光信号反射回可调滤波器和耦合器。随后，光学监视器的光电检测器测量滤波后的光信号的功率。因此，通过扫描光信号的频带上的可调谐滤波器来测量光信号的光谱，并根据可调滤波器的光频测量光信号的功率。

34. 发明授权

US07123402B1 Cloning optical-frequency comb sources 有权
标题翻译：克隆光频梳源
公开(公告)号：US07123402B1
公开(公告)日：2006-10-17
申请号：US11333105
申请日：2006-01-17
申请人： Christopher Richard Doerr , Peter J. Winzer
发明人： Christopher Richard Doerr , Peter J. Winzer
IPC分类号： G02F2/02 , H01S3/098
CPC分类号： H04J14/02 , G02F1/3532 , G02F2203/56 , H04J14/0224
摘要： Method and apparatus for creating a clone relationship between two or more optical-frequency comb sources (OFCSs). In one embodiment, the invention is an apparatus having (i) first and second OFCSs, each adapted to generate a respective frequency comb, and (ii) means for locking the phases of two comb lines of the first OFCS and the phases of the respective two comb lines of the second OFCS to create a full or partial clone relationship between these two OFCSs. In one system configuration, the locking of the phases of the first and second OFCSs is achieved by locking the phases of two selected comb lines generated by each of these OFCSs to the phases of the respective comb lines generated by the same (third, reference) OFCS. In an alternative system configuration, the locking of the phases of the first and second OFCSs is achieved by locking the phases of two selected comb lines generated by the first OFCS to the phases of the respective comb lines generated by the third OFCS, and locking the phases of two selected comb lines generated by the second OFCS to the phases of the respective comb lines generated by the first OFCS.
摘要翻译：用于在两个或多个光频梳状源（OFCS）之间创建克隆关系的方法和装置。在一个实施例中，本发明是一种装置，其具有（i）第一和第二OFCS，每个适于产生相应的频率梳，以及（ii）用于锁定第一OFCS的两个梳状线的相位和相应的第二个OFCS的两条梳线在这两个OFCS之间创建完全或部分克隆关系。在一个系统配置中，通过将由这些OFCS中的每一个生成的两个选择的梳状线的相位锁定到由相同（第三，参考））产生的相应梳状线的相位来实现第一和第二OFCS的相位的锁定， OFCS。在替代系统配置中，通过将由第一OFCS产生的两个所选择的梳状线的相位锁定到由第三OFCS产生的相应梳线的相位来锁定第一和第二OFCS的相位的锁定，由第二OFCS产生的两个所选梳线的相位与由第一OFCS产生的相应梳线的相位相关。

35. 发明授权

US07061596B2 Wavelength-tracking dispersion compensator 失效
标题翻译：波长跟踪色散补偿器
公开(公告)号：US07061596B2
公开(公告)日：2006-06-13
申请号：US10922720
申请日：2004-08-19
申请人： Christopher Richard Doerr
发明人： Christopher Richard Doerr
IPC分类号： G01N21/00
CPC分类号： G02B6/12007 , G02B6/2706 , G02B6/29352 , G02B6/29394 , G02B6/29395 , G02B6/29398 , H04B10/25133
摘要： A wavelength-tracking dispersion compensator (WT-DC) tracks the wavelength of a received input signal. The WT-DC includes an input signal optical monitor, a differential detector control circuit, a temperature controller, and an input signal dispersion compensator. The monitor includes a Mach-Zehnder interferometer that matches the dispersion compensator free-spectral range or an integer sub-multiple or multiple thereof. The monitor is coupled to the differential detector control circuit that controls a temperature controller to set the temperature of the monitor and dispersion compensator. The WT-DC automatically tracks the wavelength of the input signal. In a preferred embodiment, the monitor and the dispersion compensator are integrated on the same planar lightwave circuit chip and include a half-wave plate.
摘要翻译：波长跟踪色散补偿器（WT-DC）跟踪接收的输入信号的波长。 WT-DC包括输入信号光学监视器，差分检测器控制电路，温度控制器和输入信号色散补偿器。监视器包括与色散补偿器自由光谱范围匹配的马赫 - 策德尔干涉仪，或其整数子倍或倍数。监视器耦合到差分检测器控制电路，其控制温度控制器以设置监视器和色散补偿器的温度。 WT-DC自动跟踪输入信号的波长。在优选实施例中，监视器和色散补偿器集成在相同的平面光波电路芯片上并且包括半波片。

36. 发明授权

US07042629B2 Linear optical sampling method and apparatus 有权
标题翻译：线性光学取样方法及装置
公开(公告)号：US07042629B2
公开(公告)日：2006-05-09
申请号：US10782003
申请日：2004-02-19
申请人： Christopher Richard Doerr , Christophe J. Dorrer , Peter J. Winzer
发明人： Christopher Richard Doerr , Christophe J. Dorrer , Peter J. Winzer
IPC分类号： G02F2/00 , G02F1/01 , H04B10/06
CPC分类号： G01J11/00
摘要： A linear optical sampling apparatus, temporally samples a modulated optical signal using the amplitude of the interference of its electric field with the electric field of a laser pulse. The apparatus includes a 90° optical hybrid that combines the optical signal and laser pulse in order to generate two quadratures interference samples SA and SB. A processor compensates for optical and electrical signal handling imperfections in the hybrid, balanced detectors, and A/D converters used in the optical sampling apparatus. The processor numerically scales the two quadratures interference samples SA and SB over a large collection of samples by imposing that the average = =0 and = and then minimizes 2 /( + ) =cos(φB−φA)). This is done by adjusting the phase between the two quadratures (ideally either −π/2 or +π/2) so that cos(φB−φA)) is zero. The processor then generates a demodulated sample signal using the quadratures interference samples SA and SB. According to one feature, the hybrid sets the relative phase between two quadratures of their interferometric component so that the phase sensitivity inherent to linear optics is removed. A variety of hybrid arrangements is disclosed that can be implemented using integrated waveguide technology. The apparatus enables sampling of picosecond pulses up to 640 Gb/s with high sensitivity and temporal resolution.
摘要翻译：线性光学采样装置利用其电场的干涉幅度与激光脉冲的电场在时间上对调制光信号进行采样。该装置包括组合光信号和激光脉冲以产生两个正交干涉样本S A和B B的90°光混合。处理器补偿在光采样装置中使用的混合，平衡检测器和A / D转换器中的光信号和电信号处理缺陷。处理器通过将平均值 A 数字地对两个正交干涉样本S A S和S B B进行数字缩放， =＆lt; S＆lt; B＆lt; B＆lt; B＆lt; 2＆gt;＆lt; 2＆lt; / SUP >>，然后最小化2 A /（ 2 +＆lt; S＆lt; B＆lt; 2＆gt; 2＆lt; / SUP＆gt;）= cos（phi）。这是通过调整两个正交之间的相位（理想地为-pi / 2或+ pi / 2）来完成的，以使得cos（phi-B-ψA）零。然后，处理器使用正交干涉样本S SUB和S B B生成解调采样信号。根据一个特征，混合器设置它们的干涉分量的两个正交之间的相对相位，使得线性光学器件固有的相位灵敏度被去除。公开了可以使用集成波导技术实现的各种混合布置。该器件能够以高灵敏度和时间分辨率对高达640 Gb / s的皮秒脉冲进行采样。

37. 发明授权

US06961492B2 Tunable dispersion compensator 有权
标题翻译：可调谐色散补偿器
公开(公告)号：US06961492B2
公开(公告)日：2005-11-01
申请号：US10760516
申请日：2004-01-20
申请人： Christopher Richard Doerr
发明人： Christopher Richard Doerr
IPC分类号： G02B6/12 , G02B6/34 , G02F1/01 , G02F1/225 , H04B10/18 , G02B6/26 , H04B10/12
CPC分类号： G02B6/12007 , G02B6/29355 , G02B6/2938 , G02B6/29394 , G02B6/29395 , G02B6/29398 , G02F1/225 , G02F2201/16 , H04B10/25133
摘要： A method and apparatus for implementing a colorless polarization independent Mach-Zehnder-interferometer (MZI)-based tunable dispersion compensator (TDC) that has only three MZI stages (two in a reflective MZI-TDC) and two adjustable couplers which are responsive to one control voltage, making it compact, low power, and simple to fabricate, test, and operate. Polarization independence is obtained by using a half-wave plate positioned across the midpoints of the two path lengths of middle stage MZI of the three stage MZI-TDC and by using a quarter-wave plate in front of a reflective facet of the reflective MZI-TDC. A cascaded MZI-TDC arrangement with also only a single control is formed by cascading two MZI-TDC arrangements and driving all adjustable couplers with the same control signal.
摘要翻译：一种用于实现仅具有三个MZI级（两个在反射MZI-TDC中）的无色偏振独立马赫 - 曾德干涉仪（MZI）的可调谐色散补偿器（TDC）的方法和装置，以及响应于一个控制电压，使其紧凑，功耗低，制造，测试和操作简单。通过使用位于三级MZI-TDC的中间级MZI的两个路径长度的中点处的半波片并通过在反射MZI-TDC的反射小面前面使用四分之一波片来获得极化独立性， TDC。通过级联两个MZI-TDC布置并且驱动具有相同控制信号的所有可调耦合器来形成级联的MZI-TDC布置，也只有单个控制。

38. 发明授权

US06892021B2 Dynamic gain equalization arrangement for optical signals 有权
标题翻译：光信号的动态增益均衡布置
公开(公告)号：US06892021B2
公开(公告)日：2005-05-10
申请号：US10245666
申请日：2002-09-17
申请人： Christopher Richard Doerr
发明人： Christopher Richard Doerr
IPC分类号： G02B6/12 , G02B6/34
CPC分类号： G02B6/12021 , G02B2006/12038 , G02B2006/12159
摘要： An optical dynamic gain equalization filter (DGEF) comprises a planar arrangement of preferably “perfectly sampled” (or alternatively oversampled) waveguide grating routers (WGR's) connected by individual optical paths each containing a Mach-Zehnder interferometer operated in a push-pull fashion so that a positive phase change in one interferometer arm and a corresponding negative phase change in the other interferometer arm produces a desired change in attenuation while, at the same time, the overall phase of the optical signals after passing through the Mach-Zehnder interferometer is kept constant with respect to the adjacent paths. Alternatively, the above-described arrangement is effectively “cut in half”, and its size effectively also reduced accordingly, using a mirror placed at the midpoint of the device and an appropriate circulator to separate the input and output optical signals.
摘要翻译：光学动态增益均衡滤波器（DGEF）包括优选地“完全采样”（或替代地过采样）波导光栅路由器（WGR）的平面布置，波导光栅路由器（WGR）通过各自的光路连接，每个路径包含以推挽方式操作的马赫 - 曾德干涉仪一个干涉仪臂中的正相变和另一个干涉仪臂中的相应的负相变产生衰减的期望变化，同时保持通过马赫 - 曾德干涉仪之后的光信号的整体相位相对于相邻路径是恒定的。或者，上述布置被有效地“切成两半”，并且使用放置在装置的中点处的反射镜和适当的循环器来分离输入和输出光信号，其尺寸也有效地减小。

39. 发明授权

US06785446B1 Multi-channel optical equalizer for intersymbol interference mitigation 有权
标题翻译：用于符号间干扰减轻的多通道光均衡器
公开(公告)号：US06785446B1
公开(公告)日：2004-08-31
申请号：US10393483
申请日：2003-03-20
申请人： Sethumadhavan Chandrasekhar , Andrew Roman Chraplyvy , Christopher Richard Doerr , Peter J. Winzer
发明人： Sethumadhavan Chandrasekhar , Andrew Roman Chraplyvy , Christopher Richard Doerr , Peter J. Winzer
IPC分类号： G02B626
CPC分类号： H04B10/1149 , G02B6/266 , H04B10/2507 , H04J14/0221
摘要： An improved multi-channel optical equalizer method and apparatus for intersymbol interference mitigation compensates many wavelength channels simultaneously and requires few adjustable parameters. The equalizer unit has only two control signals, one to control signal magnitude and one to control signal phase, yet it can still compensate many wavelength channels simultaneously. The equalizer includes a coupler with a controllable coupling ratio for splitting the light into two portions and a controllable interferometer means having two arms, one arm having an additional delay which is equal to an integer multiple of 1/&Dgr;f, where &Dgr;f is the channel spacing of the multiwavelength system. The controllable interferometer unit also has a controllable delay in a first or second arm for adjusting the relative phase of the light passing therethrough. A coupler combines the two signal portions from the first and second arms to form the equalized output signal.
摘要翻译：用于符号间干扰减轻的改进的多通道光均衡器方法和装置同时补偿许多波长信道，并且需要很少的可调参数。均衡器单元只有两个控制信号，一个用于控制信号幅度，一个控制信号相位，但它仍然可以同时补偿许多波长信道。均衡器包括具有可控耦合比的耦合器，用于将光分成两部分，以及具有两个臂的可控干涉仪装置，一个臂具有等于1 / Deltaf的整数倍的附加延迟，其中Deltaf是沟道间隔的多波长系统。可控干涉仪单元还具有用于调节通过其中的光的相对相位的第一或第二臂中的可控延迟。耦合器组合来自第一和第二臂的两个信号部分以形成均衡的输出信号。

40. 发明授权

US06504970B2 Planar lightwave wavelength blocker 有权
标题翻译：平面光波长阻抗
公开(公告)号：US06504970B2
公开(公告)日：2003-01-07
申请号：US09809124
申请日：2001-03-15
申请人： Christopher Richard Doerr
发明人： Christopher Richard Doerr
IPC分类号： G02B628
CPC分类号： G02B6/12021 , G02B6/353 , G02B6/3596
摘要： A method and apparatus are disclosed for filtering an input wavelength-division multiplexed (WDM) signal comprised of N wavelength channels. The disclosed wavelength blocker includes a demultiplexer for producing a plurality of demultiplexed output signals from the input WDM signal and a multiplexer for producing an output WDM signal. A shutter array selectively passes each of the N wavelength channels using a plurality of shutters. The demultiplexer is coupled to the multiplexer using a plurality of waveguides having approximately equal length, in order to reduce multipath interference. Each of the N wavelength channels are selectively passed or blocked using a thermo-optic or electro-optic control signal to control the state of the corresponding shutter. Crosstalk can be reduced using dilation techniques that position two shutters in series, especially where the shutters are thermo-optic Mach-Zehnder switches. Wavelength-selective cross connects and wavelength add-drop multiplexers are also disclosed that employ the novel wavelength blockers.
摘要翻译：公开了一种滤波由N个波长信道组成的输入波分复用（WDM）信号的方法和装置。所公开的波长阻断器包括用于从输入WDM信号产生多个解复用输出信号的解复用器和用于产生输出WDM信号的多路复用器。快门阵列使用多个快门选择性地通过N个波长信道中的每一个。多路复用器使用具有大致相同长度的多个波导耦合到多路复用器，以便减少多径干扰。使用热光或电光控制信号选择性地使N个波长通道中的每一个通过或阻挡以控制对应的快门的状态。可以使用放置两个百叶窗串联的扩张技术来减少串扰，特别是快门是热光马赫 - 曾德尔开关的地方。还公开了波长选择性交叉连接和波长分插复用器，其采用新型波长阻挡器。

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