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1. 发明申请

US20090263142A1 TUNABLE OPTICAL FILTER 有权
标题翻译：可控光滤波器
公开(公告)号：US20090263142A1
公开(公告)日：2009-10-22
申请号：US12390056
申请日：2009-02-20
申请人： Jinxi Shen , Jyoti K. Bhardwaj , Barthelemy Fondeur , Douglas E. Crafts , Robert J. Brainard , Boping Xie , David J. Chapman
发明人： Jinxi Shen , Jyoti K. Bhardwaj , Barthelemy Fondeur , Douglas E. Crafts , Robert J. Brainard , Boping Xie , David J. Chapman
IPC分类号： H04B10/00
CPC分类号： G02F1/225 , G02B6/12007 , G02B6/4201 , G02F2201/16 , G02F2203/055
摘要： A tunable PLC optical filter having sequentially connected thermally tunable Mach-Zehnder (MZ) interferometers is described. The MZ interferometers, having free spectral ranges matching ITU frequency grid spacing, are tuned so as to have a common passband centered on the frequency of the signal being selected, while having at least one of the stopbands centered on any other ITU frequency. Any other optical channel that may be present at any other ITU frequency is suppressed as a result. The PLC chip, including a zero-dispersion lattice-filter interleaver stage, a switchable fine-resolution stage and, or a retroreflector for double passing the filter, is packaged into a hot-pluggable XFP transceiver package. A compensation heater is used to keep constant the amount of heat applied to the PLC chip inside the XFP package, so as to lessen temperature variations upon tuning of the PLC optical filter.
摘要翻译：描述了具有顺序连接的可热调谐的马赫 - 曾德（MZ）干涉仪的可调谐PLC光学滤波器。具有与ITU频率格栅间隔相匹配的自由频谱范围的MZ干涉仪被调谐，以具有以所选信号的频率为中心的公共通带，同时具有以任何其它ITU频率为中心的至少一个阻带。因此可能会抑制任何其他ITU频率出现的任何其他光信道。包括零色散格子滤波器交错器级，可切换精细分辨率级和用于双通过滤波器的后向反射器的PLC芯片被封装成可热插拔的XFP收发器封装。使用补偿加热器来保持施加到XFP封装内的PLC芯片的热量，以便在调节PLC滤光器时降低温度变化。

2. 发明申请

US20090009752A1 Method And Apparatus For Referencing A MEMS Device 有权
标题翻译：用于引用MEMS器件的方法和装置
公开(公告)号：US20090009752A1
公开(公告)日：2009-01-08
申请号：US12164826
申请日：2008-06-30
申请人： Philip Duggan , Jinxi Shen , Douglas E. Crafts
发明人： Philip Duggan , Jinxi Shen , Douglas E. Crafts
IPC分类号： G01J1/42 , G01N21/55
CPC分类号： G01D5/30 , G01D18/004
摘要： A method and an apparatus for calibrating a MEMS actuator of a hybrid MEMS-PLC optical switch or router is described. Two calibrating waveguides, embedded monolithically adjacent to the waveguides that provide the PLC output functions, are used for referencing a MEMS mirror tilt angle by maximizing optical coupling of light, reflected off the MEMS mirror, into one or each of the two calibrating waveguides. The input light is provided by either a waveguide carrying a live optical signal, or by a special input waveguide, coupled to an LED, for providing a calibrating light. Two emitting waveguides, embedded monolithically adjacent to the waveguides that provide the PLC input functions, can be used.
摘要翻译：描述了用于校准混合MEMS-PLC光开关或路由器的MEMS致动器的方法和装置。与提供PLC输出功能的波导单片相邻地嵌入的两个校准波导用于通过使从MEMS反射镜反射的光的光耦合最大化到两个校准波导中的一个或每个中来引用MEMS镜倾斜角。输入光由携带带电光信号的波导或耦合到LED的特殊输入波导提供，用于提供校准光。可以使用与提供PLC输入功能的波导单片相邻嵌入的两个发射波导。

3. 发明申请

US20060153498A1 Optical performance monitor 有权
标题翻译：光学性能监视器
公开(公告)号：US20060153498A1
公开(公告)日：2006-07-13
申请号：US11374570
申请日：2006-03-13
申请人： Jinxi Shen
发明人： Jinxi Shen
IPC分类号： G02B6/28
CPC分类号： G02B6/12026 , G02B6/12019 , H04B10/07 , H04B10/07953 , H04J14/02
摘要： An optical performance monitor for accurate monitoring of the OSNR of a WDM optical signal is provided wherein a demultiplexing arrayed waveguide grating (AWG) having a plurality of Vernier input ports is disposed between an optical switch and a photodiode array coupled to the output ports of the AWG. In operation, the optical switch sequentially provides the input optical signal into each of the Vernier ports, and signals detected by photodiodes are stored in a memory unit. The apparatus is capable of monitoring the OSNR of the WDM signal with a frequency step which is M times smaller than a frequency spacing between the AWG transmission bands, while enabling the OSNR monitoring in an enhanced dynamic range by providing accurate noise sampling.
摘要翻译：提供了一种用于精确监测WDM光信号的OSNR的光学性能监视器，其中具有多个游标输入端口的解复用阵列波导光栅（AWG）被布置在光开关和耦合到所述光输入端口的输出端口的光电二极管阵列之间 AWG。在操作中，光开关顺序地将输入光信号提供给每个游标端口，并且由光电二极管检测的信号被存储在存储器单元中。该装置能够以比AWG传输频带之间的频率间隔小M倍的频率步长来监视WDM信号的OSNR，同时通过提供精确的噪声采样来实现在增强的动态范围内的OSNR监视。

4. 发明申请

US20050018965A1 Dynamic optical demultiplexer/multiplexer formed within a PLC 有权
标题翻译：在PLC内形成的动态光解复用器/多路复用器
公开(公告)号：US20050018965A1
公开(公告)日：2005-01-27
申请号：US10878935
申请日：2004-06-28
申请人： Jinxi Shen , Anca Sala , David Dougherty , David Funk , Douglas Crafts , Barthelemy Fondeur , Pang-Chen Sun
发明人： Jinxi Shen , Anca Sala , David Dougherty , David Funk , Douglas Crafts , Barthelemy Fondeur , Pang-Chen Sun
IPC分类号： G02B6/34 , H04J14/02 , G02B6/28
CPC分类号： G02B6/12019 , H04J14/02
摘要： A demultiplexer/multiplexer is disclosed wherein an arrayed waveguide grating having a reflector at an end includes selectable signal path blockers. The arrayed waveguide device has a common input/output port for launching radiation in the form of an input signal having n wavelengths therein and for receiving back via the reflector at the input/output port a selected channel of the input signal. In operation a multiplexed signal have n channels is launched therein and a selected channel is output for analysis or further processing.
摘要翻译：公开了一种解复用器/多路复用器，其中在一端具有反射器的阵列波导光栅包括可选择的信号路径阻挡器。阵列波导器件具有用于以其中具有n个波长的输入信号的形式发射辐射的公共输入/输出端口，并且用于经由反射器在输入/输出端口处接收输入信号的选定通道的反射。在操作中，多路复用信号在其中发射n个信道，并且输出所选择的信道用于分析或进一步处理。

5. 发明授权

US08340523B2 Tunable optical filter 有权
标题翻译：可调滤光片
公开(公告)号：US08340523B2
公开(公告)日：2012-12-25
申请号：US12390056
申请日：2009-02-20
申请人： Jinxi Shen , Jyoti K. Bhardwaj , Barthelemy Fondeur , Douglas E. Crafts , Robert J. Brainard , Boping Xie , David J. Chapman
发明人： Jinxi Shen , Jyoti K. Bhardwaj , Barthelemy Fondeur , Douglas E. Crafts , Robert J. Brainard , Boping Xie , David J. Chapman
IPC分类号： H04J14/02
CPC分类号： G02F1/225 , G02B6/12007 , G02B6/4201 , G02F2201/16 , G02F2203/055
摘要： A tunable PLC optical filter having sequentially connected thermally tunable Mach-Zehnder (MZ) interferometers is described. The MZ interferometers, having free spectral ranges matching ITU frequency grid spacing, are tuned so as to have a common passband centered on the frequency of the signal being selected, while having at least one of the stopbands centered on any other ITU frequency. Any other optical channel that may be present at any other ITU frequency is suppressed as a result. The PLC chip, including a zero-dispersion lattice-filter interleaver stage, a switchable fine-resolution stage and, or a retroreflector for double passing the filter, is packaged into a hot-pluggable XFP transceiver package. A compensation heater is used to keep constant the amount of heat applied to the PLC chip inside the XFP package, so as to lessen temperature variations upon tuning of the PLC optical filter.
摘要翻译：描述了具有顺序连接的可热调谐的马赫 - 曾德（MZ）干涉仪的可调谐PLC光学滤波器。具有与ITU频率格栅间隔相匹配的自由频谱范围的MZ干涉仪被调谐，以具有以所选信号的频率为中心的公共通带，同时具有以任何其它ITU频率为中心的至少一个阻带。因此可能会抑制任何其他ITU频率出现的任何其他光信道。包括零色散格子滤波器交错器级，可切换精细分辨率级和用于双通过滤波器的后向反射器的PLC芯片被封装成可热插拔的XFP收发器封装。使用补偿加热器来保持施加到XFP封装内的PLC芯片的热量，以便在调节PLC滤光器时降低温度变化。

6. 发明授权

US07952695B2 Scanning spectrometer with multiple photodetectors 有权
标题翻译：具有多个光电探测器的扫描光谱仪
公开(公告)号：US07952695B2
公开(公告)日：2011-05-31
申请号：US12939708
申请日：2010-11-04
申请人： Douglas E. Crafts , Jinxi Shen , Philip Duggan , James F. Farrell , Barthelemy Fondeur , Eliseo Ranalli
发明人： Douglas E. Crafts , Jinxi Shen , Philip Duggan , James F. Farrell , Barthelemy Fondeur , Eliseo Ranalli
IPC分类号： G01N21/00
CPC分类号： G01J3/2803 , G01J3/18 , G02B6/12019
摘要： A scanning optical spectrometer with a detector array is disclosed, in which position of focused spot of light at the input of a dispersive element such as arrayed waveguide grating (AWG) with a slab input, is scanned using a micro-electro-mechanical (MEMS) tiltable micromirror so as to make the dispersed spectrum of light scan over the detector array coupled to the AWG. Sub-spectra recorded using individual detectors are concatenated by a processor unit to obtain the spectrum of input light.
摘要翻译：公开了一种具有检测器阵列的扫描光谱仪，其中使用微机电（MEMS）扫描在诸如具有板输入的阵列波导光栅（AWG）等分散元件的输入处的聚焦光点的位置）可倾斜微镜，以便使光的分散光谱扫描耦合到AWG的检测器阵列。使用各个检测器记录的子光谱由处理器单元连接以获得输入光的光谱。

7. 发明申请

US20090046288A1 Scanning Spectrometer With Multiple Photodetectors 有权
标题翻译：具有多个光电探测器的扫描光谱仪
公开(公告)号：US20090046288A1
公开(公告)日：2009-02-19
申请号：US12189993
申请日：2008-08-12
申请人： Douglas E. Crafts , Jinxi Shen , Philip Duggan , James F. Farrell , Barthelemy Fondeur , Eliseo Ranalli
发明人： Douglas E. Crafts , Jinxi Shen , Philip Duggan , James F. Farrell , Barthelemy Fondeur , Eliseo Ranalli
IPC分类号： G01J3/28
CPC分类号： G01J3/2803 , G01J3/18 , G02B6/12019
摘要： A scanning optical spectrometer with a detector array is disclosed, in which position of focused spot of light at the input of a dispersive element such as arrayed waveguide grating (AWG) with a slab input, is scanned using a micro-electro-mechanical (MEMS) tiltable micromirror so as to make the dispersed spectrum of light scan over the detector array coupled to the AWG. Sub-spectra recorded using individual detectors are concatenated by a processor unit to obtain the spectrum of input light.
摘要翻译：公开了一种具有检测器阵列的扫描光谱仪，其中使用微机电（MEMS）扫描在诸如具有板输入的阵列波导光栅（AWG）等分散元件的输入处的聚焦光点的位置）可倾斜微镜，以便使光的分散光谱扫描耦合到AWG的检测器阵列。使用各个检测器记录的子光谱由处理器单元连接以获得输入光的光谱。

8. 发明授权

US07130505B2 Optical performance monitor 有权
公开(公告)号：US07130505B2
公开(公告)日：2006-10-31
申请号：US11374570
申请日：2006-03-13
申请人： Jinxi Shen
发明人： Jinxi Shen
IPC分类号： G02B6/28 , H04B10/00
CPC分类号： G02B6/12026 , G02B6/12019 , H04B10/07 , H04B10/07953 , H04J14/02
摘要： An optical performance monitor for accurate monitoring of the OSNR of a WDM optical signal is provided wherein a demultiplexing arrayed waveguide grating (AWG) having a plurality of Vernier input ports is disposed between an optical switch and a photodiode array coupled to the output ports of the AWG. In operation, the optical switch sequentially provides the input optical signal into each of the Vernier ports, and signals detected by photodiodes are stored in a memory unit. The apparatus is capable of monitoring the OSNR of the WDM signal with a frequency step which is M times smaller than a frequency spacing between the AWG transmission bands, while enabling the OSNR monitoring in an enhanced dynamic range by providing accurate noise sampling.

9. 发明授权

US08983244B2 Optical interferometer 有权
标题翻译：光学干涉仪
公开(公告)号：US08983244B2
公开(公告)日：2015-03-17
申请号：US13361683
申请日：2012-01-30
申请人： Jinxi Shen , Hiroaki Yamada , David J. Chapman , Shanrui Ren
发明人： Jinxi Shen , Hiroaki Yamada , David J. Chapman , Shanrui Ren
IPC分类号： G02B6/12 , G02B6/26 , H04B10/67 , G02F2/00 , G02F1/225
CPC分类号： H04B10/677 , G02F1/225 , G02F2/00 , G02F2201/20
摘要： An optical interferometer for demodulating a differential phase shift keying optical signal includes a planar lightwave circuit and at least one free space delay line optically coupled to the planar lightwave circuit. The planar lightwave circuit has a waveguide splitter, a waveguide coupler, and a phase adjuster. In operation, the splitter splits the optical signal into equal portions, the phase adjuster adjusts the relative phase of the optical signal portions, and the free space delay line provides one-bit delay between the portions of the optical signal. The delayed signals are mixed in the waveguide coupler. The free space delay line can be made variable for adjustment of the bit delay for operation at different bit rates, and/or for optimization of the interferometer performance.
摘要翻译：用于解调差分相移键控光信号的光干涉仪包括平面光波电路和光耦合到平面光波电路的至少一个自由空间延迟线。平面光波电路具有波导分路器，波导耦合器和相位调节器。在操作中，分离器将光信号分成相等的部分，相位调节器调节光信号部分的相对相位，并且自由空间延迟线在光信号的部分之间提供一位延迟。延迟信号在波导耦合器中混合。可以使自由空间延迟线可变，用于调整不同比特率下的操作的位延迟和/或干涉仪性能的优化。

10. 发明授权

US08731400B2 Characterizing a frequency channel in an optical network 有权
标题翻译：表征光网络中的频道
公开(公告)号：US08731400B2
公开(公告)日：2014-05-20
申请号：US13442672
申请日：2012-04-09
申请人： Jinxi Shen , David R. Walker , Leonid Frenkel , Yu Zhang , Barthelemy Fondeur , Vlatko Milinkovic , Yimin Hua
发明人： Jinxi Shen , David R. Walker , Leonid Frenkel , Yu Zhang , Barthelemy Fondeur , Vlatko Milinkovic , Yimin Hua
IPC分类号： H04B10/08 , H04J14/00
CPC分类号： H04B10/0775
摘要： A tunable optical filter is configured to take point measurements at a few optical frequencies per frequency channel of a DWDM optical network. The measurement frequencies are shifted by pre-determined amounts relative to the optical frequency channel being characterized. Since the spectral shape of the tunable optical filter is known, the center optical frequency, the modulation bandwidth, and the total optical power of the channel can be obtained from as few as three optical measurements. The center optical frequency and the total optical power can be continuously monitored by providing a tunable filter stage coupled to an interleaver stage, and computing a ratio and a weighted sum the optical signals at the two outputs of the interleaver stage.
摘要翻译：可调谐光学滤波器被配置为在DWDM光网络的每个频道上以几个光学频率进行点测量。测量频率相对于被表征的光频道被移动预定量。由于可调光滤波器的光谱形状是已知的，所以可以从少至三个光学测量中获得信道的中心光频率，调制带宽和总光功率。可以通过提供耦合到交织器级的可调滤波器级，并且计算交织器级的两个输出处的光信号的比率和加权和来连续监视中心光频率和总光功率。

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