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1. 发明授权

US06636656B2 System architecture of optical switching fabric 失效
标题翻译：光交换结构体系结构
公开(公告)号：US06636656B2
公开(公告)日：2003-10-21
申请号：US10002310
申请日：2001-10-24
申请人： Cheng-Chung Huang , Steven S. Nasiri , Alex Harwit , Dmitry Vasily Bakin , Randall Brian Sprague , Janusz Bryzek
发明人： Cheng-Chung Huang , Steven S. Nasiri , Alex Harwit , Dmitry Vasily Bakin , Randall Brian Sprague , Janusz Bryzek
IPC分类号： G02B626
CPC分类号： G02B6/3512 , G02B6/359
摘要： An optical switching fabric enables an optical signal entering the device on any one of multiple input ports to be directed to any one of multiple output ports. The present optical switching fabrics include sensing and monitoring devices that permit precise initial calibration and continuous switch connection status monitoring and control. Light entering the switching fabric on an input port is reflected by one of a first set of individually controllable mirrors to one of a second set of individually controllable mirrors and then to a corresponding output port. The switching fabrics include control lasers and position sensing devices which provide output signals corresponding to the orientations of the mirrors. In addition, a subset of the input ports and output ports can be attached to monitor light sources and detectors for recalibration and control. Further, sensors for detecting the intensity of input signals, of signals that have been reflected by a mirror in the first set and by a mirror in the second set, and of signals backscattered from the output ports may be included.
摘要翻译：光交换结构使得能够将进入多个输入端口中的任何一个的设备的光信号引导到多个输出端口中的任何一个。本发明的光交换结构包括能够精确地进行初始校准和连续切换连接状态监视和控制的感测和监视设备。在输入端口上进入交换结构的光被第一组单独可控的反射镜中的一个反射到第二组单独可控的反射镜中的一个，然后到相应的输出端口。交换结构包括控制激光器和位置感测装置，其提供对应于反射镜取向的输出信号。此外，输入端口和输出端口的子集可以附加到监视光源和检测器上以进行重新校准和控制。此外，可以包括用于检测由第一组中的反射镜和第二组中的反射镜反射的信号的输入信号的强度的传感器和从输出端口反向散射的信号。

2. 发明授权

US06898341B2 Optical system for calibration and control of an optical fiber switch 失效
标题翻译：用于光纤开关校准和控制的光学系统
公开(公告)号：US06898341B2
公开(公告)日：2005-05-24
申请号：US09999610
申请日：2001-10-24
申请人： Cheng-Chung Huang , Steven Saeed Nasiri , Randall Brian Sprague , Alex Harwit , Dmitry Vasily Bakin , Janusz Bryzek
发明人： Cheng-Chung Huang , Steven Saeed Nasiri , Randall Brian Sprague , Alex Harwit , Dmitry Vasily Bakin , Janusz Bryzek
IPC分类号： G02B6/42 , G02B6/35 , G02B26/08 , H04Q3/52 , H04Q11/00 , G02B6/26
CPC分类号： H04Q11/0005 , G02B6/3546 , G02B6/3556 , G02B6/3586 , H04Q2011/0026 , H04Q2011/003 , H04Q2011/0037 , H04Q2011/0039 , H04Q2011/0049 , H04Q2011/0083
摘要： Methods of calibrating and operating optical switches as well as optical switches in which the orientations of mirrors are measured and controlled using control light beams and position sensing detectors are described. The present invention may provide high resolution control of a plurality of mirrors in an optical switch and thus allow the optical switch to cross-connect a large number of input and output ports with a low insertion loss.
摘要翻译：描述了使用控制光束和位置感测检测器来测量和控制光学开关以及光学开关的校准和操作的方法。本发明可以提供光开关中的多个反射镜的高分辨率控制，从而允许光开关以低插入损耗交叉连接大量输入和输出端口。

3. 发明授权

US06980712B2 Optical system for calibration and control of an optical fiber switch 失效
公开(公告)号：US06980712B2
公开(公告)日：2005-12-27
申请号：US10926705
申请日：2004-08-26
申请人： Cheng-Chung Huang , Steven Saeed Nasiri , Randall Brian Sprague , Alex Harwit , Dmitry Vasily Bakin , Janusz Bryzek
发明人： Cheng-Chung Huang , Steven Saeed Nasiri , Randall Brian Sprague , Alex Harwit , Dmitry Vasily Bakin , Janusz Bryzek
IPC分类号： G02B6/42 , G02B6/35 , G02B26/08 , H04Q3/52 , H04Q11/00 , G02B6/26
CPC分类号： H04Q11/0005 , G02B6/3546 , G02B6/3556 , G02B6/3586 , H04Q2011/0026 , H04Q2011/003 , H04Q2011/0037 , H04Q2011/0039 , H04Q2011/0049 , H04Q2011/0083
摘要： Methods of calibrating and operating optical switches as well as optical switches in which the orientations of mirrors are measured and controlled using control light beams and position sensing detectors are described. The present invention may provide high resolution control of a plurality of mirrors in an optical switch and thus allow the optical switch to cross-connect a large number of input and output ports with a low insertion loss.

4. 发明授权

US06922500B2 Optical configuration for optical fiber switch 有权
标题翻译：光纤交换机的光学配置
公开(公告)号：US06922500B2
公开(公告)日：2005-07-26
申请号：US09999878
申请日：2001-10-24
申请人： Cheng-Chung Huang , Steven Saeed Nasiri , Randall Brian Sprague , Alex Harwit , Dmitry Vasily Bakin , Janusz Bryzek
发明人： Cheng-Chung Huang , Steven Saeed Nasiri , Randall Brian Sprague , Alex Harwit , Dmitry Vasily Bakin , Janusz Bryzek
IPC分类号： H04Q11/00 , G02B6/35
CPC分类号： H04Q11/0005 , H04Q2011/0026
摘要： An optical fiber switch in accordance with an embodiment of the present invention includes a first plurality of ports, a second plurality of ports, a first plurality of mirrors disposed on a first surface, and a second plurality of mirrors disposed on a second surface. Each one of the first plurality of mirrors is individually controllable to direct light output from a corresponding one of the first plurality of ports to any one of the second plurality of mirrors. Each one of the second plurality of mirrors is individually controllable to direct to a corresponding one of the second plurality of ports light incident on it from any one of the first plurality of mirrors. Advantageously, optical fiber switches in accordance with embodiments of the present invention may couple more than a thousand input ports to more than a thousand output ports with an insertion loss of less than about 3 decibels.
摘要翻译：根据本发明实施例的光纤开关包括第一多个端口，第二多个端口，设置在第一表面上的第一多个反射镜和设置在第二表面上的第二多个反射镜。所述第一多个反射镜中的每一个单独可控制以将从所述第一多个端口中的相应一个端口的光输出引导到所述第二多个反射镜中的任何一个。所述第二多个反射镜中的每一个独立地可控制以将所述第二多个端口中的相应一个端口引导到从所述第一多个反射镜中的任何一个反射镜入射到其上的光。有利地，根据本发明的实施例的光纤交换机可将多于一千个输入端口耦合到多于一千个输出端口，插入损耗小于约3分贝。

5. 发明申请

US20050018958A1 Optical system for calibration and control of an optical fiber switch 失效
公开(公告)号：US20050018958A1
公开(公告)日：2005-01-27
申请号：US10926705
申请日：2004-08-26
申请人： Cheng-Chung Huang , Steven Saeed Nasiri , Randall Sprague , Alex Harwit , Dmitry Vasily Bakin , Janusz Bryzek
发明人： Cheng-Chung Huang , Steven Saeed Nasiri , Randall Sprague , Alex Harwit , Dmitry Vasily Bakin , Janusz Bryzek
IPC分类号： G02B6/42 , G02B6/35 , G02B26/08 , H04Q3/52 , H04Q11/00 , G02B6/26
CPC分类号： H04Q11/0005 , G02B6/3546 , G02B6/3556 , G02B6/3586 , H04Q2011/0026 , H04Q2011/003 , H04Q2011/0037 , H04Q2011/0039 , H04Q2011/0049 , H04Q2011/0083
摘要： Methods of calibrating and operating optical switches as well as optical switches in which the orientations of mirrors are measured and controlled using control light beams and position sensing detectors are described. The present invention may provide high resolution control of a plurality of mirrors in an optical switch and thus allow the optical switch to cross-connect a large number of input and output ports with a low insertion loss.

6. 发明授权

US07076146B2 Variable optical attenuator 失效
公开(公告)号：US07076146B2
公开(公告)日：2006-07-11
申请号：US10842025
申请日：2004-05-07
申请人： Zbigniew Sufleta , Janusz Bryzek , Alex Harwit , James Higgins Smith , Cheng-Chung Huang , Dmitry Vasily Bakin , Steven Saeed Nasiri
发明人： Zbigniew Sufleta , Janusz Bryzek , Alex Harwit , James Higgins Smith , Cheng-Chung Huang , Dmitry Vasily Bakin , Steven Saeed Nasiri
IPC分类号： G02B6/35
CPC分类号： G02B6/3512 , G02B6/266 , G02B6/3546 , G02B6/359 , G02B6/3594
摘要： A method of controllably attenuating a beam of light coupled into a port includes directing the beam of light against a mirror, and controlling an orientation of the mirror such that a predetermined fraction of the beam of light is coupled into the port. The predetermined fraction is less than a maximum fraction corresponding to optimal coupling of the beam of light into the port. The method may be implemented with a variable optical attenuator including a first port, a second port, a mirror located to direct light output by the first port to the second port, and a controller coupled to the mirror to align it such that the predetermined fraction of light is coupled into the second port. The method may also be implemented with an optical switch.

7. 发明授权

US06754431B2 Variable optical attenuator 有权
公开(公告)号：US06754431B2
公开(公告)日：2004-06-22
申请号：US09999838
申请日：2001-10-24
申请人： Zbigniew Sufleta , Janusz Bryzek , Alex Harwit , James Higgins Smith , Cheng-Chung Huang , Dmitry Vasily Bakin , Steven Saeed Nasiri
发明人： Zbigniew Sufleta , Janusz Bryzek , Alex Harwit , James Higgins Smith , Cheng-Chung Huang , Dmitry Vasily Bakin , Steven Saeed Nasiri
IPC分类号： G02B626
CPC分类号： G02B6/3512 , G02B6/266 , G02B6/3546 , G02B6/359 , G02B6/3594
摘要： A method of controllably attenuating a beam of light coupled into a port includes directing the beam of light against a mirror, and controlling an orientation of the mirror such that a predetermined fraction of the beam of light is coupled into the port. The predetermined fraction is less than a maximum fraction corresponding to optimal coupling of the beam of light into the port. The method may be implemented with a variable optical attenuator including a first port, a second port, a mirror located to direct light output by the first port to the second port, and a controller coupled to the mirror to align it such that the predetermined fraction of light is coupled into the second port. The method may also be implemented with an optical switch.

8. 发明授权

US08164379B2 Voltage generator capable of preventing latch-up and method thereof 有权
标题翻译：电压发生器能够防止闩锁及其方法
公开(公告)号：US08164379B2
公开(公告)日：2012-04-24
申请号：US12651483
申请日：2010-01-04
申请人： Chen-Jung Chuang , Chin-Yuan Tu , Cheng-Chung Huang , Hong-Jun Hsiao
发明人： Chen-Jung Chuang , Chin-Yuan Tu , Cheng-Chung Huang , Hong-Jun Hsiao
IPC分类号： G05F1/10
CPC分类号： H02M3/07 , G09G3/3677 , G09G3/3696 , G09G2330/02 , G09G2330/026
摘要： A voltage generator capable of preventing latch-up is disclosed. The voltage generator includes a positive charge pump unit, a negative charge pump unit, a second stage charge pump unit, and a control unit. The positive charge pump unit is utilized for generating a positive charge pump voltage according to a first enable signal. The negative charge pump is utilized for generating a negative charge pump voltage according to a second enable signal. The second stage charge pump unit is utilized for generating a gate-on voltage and a gate-off voltage according to a third enable signal and a fourth enable signal. The control unit is utilized for generating the first enable signal, the second enable signal, the third enable signal, and the fourth enable signal and make the second stage charge pump unit generate the gate-on voltage (or the gate-off voltage) in a successively-increasing (or decreasing) manner.
摘要翻译：公开了一种能够防止闩锁的电压发生器。电压发生器包括正电荷泵单元，负电荷泵单元，第二级电荷泵单元和控制单元。正电荷泵单元用于根据第一使能信号产生正电荷泵电压。负电荷泵用于根据第二使能信号产生负电荷泵电压。第二级电荷泵单元用于根据第三使能信号和第四使能信号产生栅极导通电压和栅极截止电压。控制单元用于产生第一使能信号，第二使能信号，第三使能信号和第四使能信号，并使第二级电荷泵单元产生栅极导通电压（或栅极截止电压）逐渐增加（或减少）的方式。

9. 发明授权

US06985299B2 Optical cross-connect switch with telecentric lens and multi-surface optical element 失效
标题翻译：具有远心透镜和多表面光学元件的光交叉开关
公开(公告)号：US06985299B2
公开(公告)日：2006-01-10
申请号：US10918830
申请日：2004-08-13
申请人： Dmitry V. Bakin , Cheng-Chung Huang
发明人： Dmitry V. Bakin , Cheng-Chung Huang
IPC分类号： G02B13/22 , G02B17/00
CPC分类号： G02B6/3582 , G02B6/30 , G02B6/3512 , G02B6/3546 , G02B6/356 , G02B6/359 , G02B13/22
摘要： In the beam path of an Optical Cross Connect between the front face of a fiber block and a moveable mirror array are placed a telecentric lens and multi-surface optical element. The lens is placed adjacent the front face with a front focal plane coinciding with the front face. The substantially parallel beam path axes between the front face and the telecentric lens are converted by the lens into dispersing directions towards the optical element. Discrete optical surfaces of the optical element redirect the dispersing beam paths in a fashion such that the beam paths coincide in the following with corresponding moveable mirrors of a mirror array. Pitches of arrayed fiber ends and of the optical surfaces as well as the moveable mirrors are independently selectable. The telecentric lens simultaneously focuses the signal beams with improved beam separation and reduced signal loss.
摘要翻译：在光纤块的前表面和可移动反射镜阵列之间的光学交叉连接的光束路径中放置有远心透镜和多表面光学元件。透镜被放置在与正面相邻的前焦面上，与前表面重合。前表面和远心透镜之间的基本上平行的光束路径轴由透镜转换成朝向光学元件的分散方向。光学元件的离散光学表面以使得光束路径在后面与反射镜阵列的相应可移动反射镜重合的方式重新分配分散光束路径。阵列纤维端部和光学表面以及可移动反射镜的间距可独立选择。远心透镜同时聚焦信号光束，改善光束分离和减少信号损失。

10. 发明授权

US06614954B2 Feedback control system for a MEMS based optical switching fabric 有权
标题翻译：基于MEMS的光交换矩阵的反馈控制系统
公开(公告)号：US06614954B2
公开(公告)日：2003-09-02
申请号：US10003659
申请日：2001-10-24
申请人： Cheng-Chung Huang , Randall B. Sprague , Daryl Ray Hawkins , David Skurnik , Eric Charles Abbott
发明人： Cheng-Chung Huang , Randall B. Sprague , Daryl Ray Hawkins , David Skurnik , Eric Charles Abbott
IPC分类号： G02B635
CPC分类号： G02B6/3512 , G02B6/3556 , G02B6/359
摘要： A control system for controlling individual mirrors in a MEMS-based optical switching fabric is presented. The control system includes a position sensitive detector positioned to receive a control beam reflected from individual mirrors of a first mirror array. In some embodiments, the control beam can be time-multiplexed with a calibration beam. The position of the control beam corrected in response to the position of the calibration beam can be compared with a position calculated on the port assignment of the individual mirrors in order to provide feedback to a feed-back based control system for the individual mirrors.
摘要翻译：提出了一种用于控制基于MEMS的光交换结构中的各个反射镜的控制系统。控制系统包括位置敏感检测器，定位成接收从第一反射镜阵列的各个反射镜反射的控制光束。在一些实施例中，控制光束可以与校准光束进行时间复用。响应于校准光束的位置校正的控制光束的位置可以与在各个反射镜的端口分配上计算的位置进行比较，以便为各个反射镜的反馈控制系统提供反馈。

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