公开(公告)号：US07233432B2

公开(公告)日：2007-06-19

申请号：US10232349

申请日：2002-08-30

申请人： Mohammed N. Islam ,  Michael J. Freeman ,  Amos Kuditcher

发明人： Mohammed N. Islam ,  Michael J. Freeman ,  Amos Kuditcher

IPC分类号： H01S3/00

CPC分类号： H04B10/2935 ,  H04J14/0221

摘要： In one of several embodiments, a method of communicating optical signals comprises communicating a plurality of optical signals over an optical communications medium, wherein each of at least some of the plurality of optical signals comprises a launch power that is a function of a noise property measured at or near a center wavelength of that signal. Launch powers of the plurality of optical signals primarily decrease with increasing center wavelengths of the plurality of optical signals.

摘要翻译： 在几个实施例中的一个实施例中，传送光信号的方法包括通过光通信介质传送多个光信号，其中多个光信号中的至少一些光信号中的每一个包括作为测量的噪声特性的函数的发射功率 处于或接近该信号的中心波长。 多个光信号的发射功率主要随着多个光信号的中心波长的增加而减小。

公开(公告)号：US07034975B1

公开(公告)日：2006-04-25

申请号：US10144694

申请日：2002-05-13

申请人： Mohammed N. Islam ,  Amos Kuditcher

发明人： Mohammed N. Islam ,  Amos Kuditcher

IPC分类号： G02B26/08

CPC分类号： G02B26/0841

摘要： An interferometric micro electro-mechanical switching (MEMS) device includes an interferometer. The interferometer includes an optical cavity having a depth and formed between an inner mirror assembly and an outer mirror assembly. The MEMS device further includes an actuator coupled to the interferometer. The actuator includes an electrode gap having a depth and formed between an inner conductor and an outer conductor. In one particular embodiment, the depth of the optical cavity and the depth of the electrode gap are capable of being selected substantially independently of one another.

摘要翻译： 干涉式微机电开关（MEMS）装置包括干涉仪。 干涉仪包括具有深度并形成在内反射镜组件和外镜组件之间的光学腔。 MEMS器件还包括耦合到干涉仪的致动器。 致动器包括具有深度并形成在内部导体和外部导体之间的电极间隙。 在一个具体实施例中，光腔的深度和电极间隙的深度能够基本上彼此独立地选择。

公开(公告)号：US06721475B1

公开(公告)日：2004-04-13

申请号：US09746813

申请日：2000-12-22

申请人： Mohammed N. Islam ,  Amos Kuditcher

发明人： Mohammed N. Islam ,  Amos Kuditcher

IPC分类号： G02B628

CPC分类号： G02B6/3516 ,  G02B6/356 ,  G02B6/357 ,  G02B6/3594 ,  H04B10/25073 ,  H04J14/0221

摘要： In one aspect of the invention, a gain equalizer comprises a wavelength division demultiplexer operable to separate one or more communication bands into a plurality of wavelengths and an array of phase shifter stages. Each phase shifter stage comprises a micro-electro-optic system (MEMS) device comprising a moveable mirror layer operable to receive a first copy of an input signal from a beam splitter and to reflect the first copy of the input signal for combination with a second copy of the input signal at an output to form an output signal. The moveable mirror layer is displaceable in a substantially piston-like motion to introduce a phase shift between the first and second signal copies at the output, the amplitude of the output signal varying depending on the displacement of the moveable mirror layer. The gain equalizer further comprises a wavelength division multiplexer operable to receive a plurality of phase shifted wavelengths from the second beam splitter and to multiplex at least some of the phase shifted wavelengths into an optical output signal.

摘要翻译： 在本发明的一个方面，增益均衡器包括波分解复用器，其可操作以将一个或多个通信频带分离成多个波长和移相器级阵列。 每个移相器级包括微电子光学系统（MEMS）器件，其包括可移动镜像层，可操作地接收来自分束器的输入信号的第一拷贝，并且反映输入信号的第一拷贝以与第二拷贝组合 在输出端复制输入信号以形成输出信号。 可移动镜层可在基本上类似活塞状的运动中移动，以在输出处在第一和第二信号副本之间引入相移，输出信号的幅度根据可移动镜层的位移而变化。 增益均衡器还包括波分复用器，其可操作以从第二分束器接收多个相移波长，并将至少一些相移波长复用为光输出信号。

公开(公告)号：US06493488B1

公开(公告)日：2002-12-10

申请号：US09746850

申请日：2000-12-22

申请人： Mohammed N. Islam ,  Amos Kuditcher

发明人： Mohammed N. Islam ,  Amos Kuditcher

IPC分类号： G02B626

CPC分类号： G02B6/3516 ,  G02B6/266 ,  G02B6/272 ,  G02B6/2766 ,  G02B6/29383 ,  G02B6/29395 ,  G02B6/356 ,  G02B6/357 ,  G02B6/3594 ,  H04Q2011/003 ,  H04Q2011/0035

摘要： In one aspect of the invention, an apparatus operable to facilitate optical signal processing includes a micro-electro-optic system (MEMS) device having a moveable mirror layer operable to receive a first copy of an input signal from a beam splitter and to reflect the first copy of the input signal for combination with a second copy of the input signal at an output to form an output signal. The moveable mirror layer being displaceable in a substantially piston-like motion to introduce a phase shift between the first and second signal copies at the output. The amplitude of the output signal varying depending on the displacement of the moveable mirror layer.

摘要翻译： 在本发明的一个方面，可操作以便于光信号处理的装置包括具有可移动镜层的微电子光学系统（MEMS）装置，其可操作以从分束器接收输入信号的第一拷贝并反射 在输出端与输入信号的第二副本组合的输入信号的第一副本，以形成输出信号。 可移动镜层可在基本上类似活塞的运动中移位，以在输出处在第一和第二信号副本之间引入相移。 输出信号的振幅根据可动镜层的位移而变化。

公开(公告)号：US07254341B2

公开(公告)日：2007-08-07

申请号：US11277462

申请日：2006-03-24

申请人： Mohammed N. Islam ,  Amos Kuditcher

发明人： Mohammed N. Islam ,  Amos Kuditcher

IPC分类号： H04B10/00

CPC分类号： H04B10/25133 ,  H04B2210/252

摘要： An optical communication system includes a first end terminal comprising a first transponder operable to receive a first electrical signal and generate an optical signal based at least in part on the first electrical signal for communication to a multiple span communication link. The optical signal experiences at least partial dispersion compensation from an optical dispersion compensating element as it traverses the communication link. The system also includes a second end terminal comprising a second transponder operable to receive the optical signal and generate a second electrical signal based at least in part on the optical signal. At least one of the first and second end terminals further includes an electronic dispersion compensation module operable to provide electronic dispersion compensation to at least a portion of at least one of the first and second electrical signals. The electronic dispersion compensation module is operable to at least partially compensate for at least a portion of a residual dispersion for which the optical dispersion compensating element does not compensate.

摘要翻译： 光通信系统包括第一端终端，其包括第一应答器，其可操作以接收第一电信号，并且至少部分地基于第一电信号产生光信号，用于与多跨度通信链路进行通信。 当光学信号穿过通信链路时，光信号经历来自光学色散补偿元件的至少部分色散补偿。 该系统还包括第二端终端，其包括可操作以接收光信号并且至少部分地基于光信号产生第二电信号的第二转发器。 第一和第二端子终端中的至少一个还包括电子色散补偿模块，其可操作以向第一和第二电信号中的至少一个电信号的至少一部分提供电子色散补偿。 电子色散补偿模块可操作以至少部分地补偿光学色散补偿元件不补偿的残余色散的至少一部分。

公开(公告)号：US07058311B1

公开(公告)日：2006-06-06

申请号：US10100589

申请日：2002-03-15

申请人： Mohammed N. Islam ,  Amos Kuditcher

发明人： Mohammed N. Islam ,  Amos Kuditcher

IPC分类号： H04B10/12 ,  H04B10/06 ,  H04B17/00

CPC分类号： H04B10/25133 ,  H04B2210/252

摘要： An optical communication system includes a first end terminal comprising a first transponder operable to receive a first electrical signal and generate an optical signal based at least in part on the first electrical signal for communication to a multiple span communication link. The optical signal experiences at least partial dispersion compensation from an optical dispersion compensating element as it traverses the communication link. The system also includes a second end terminal comprising a second transponder operable to receive the optical signal and generate a second electrical signal based at least in part on the optical signal. At least one of the first and second end terminals further includes an electronic dispersion compensation module operable to provide electronic dispersion compensation to at least a portion of at least one of the first and second electrical signals. The electronic dispersion compensation module is operable to at least partially compensate for at least a portion of a residual dispersion for which the optical dispersion compensating element does not compensate.

摘要翻译： 光通信系统包括第一端终端，其包括第一应答器，其可操作以接收第一电信号，并且至少部分地基于第一电信号产生光信号，用于与多跨度通信链路进行通信。 当光学信号穿过通信链路时，光信号经历来自光学色散补偿元件的至少部分色散补偿。 该系统还包括第二端终端，其包括可操作以接收光信号并且至少部分地基于光信号产生第二电信号的第二转发器。 第一和第二端子终端中的至少一个还包括电子色散补偿模块，其可操作以向第一和第二电信号中的至少一个电信号的至少一部分提供电子色散补偿。 电子色散补偿模块可操作以至少部分地补偿光学色散补偿元件不补偿的残余色散的至少一部分。

公开(公告)号：US06856459B1

公开(公告)日：2005-02-15

申请号：US09746125

申请日：2000-12-22

申请人： Mohammed N. Islam ,  Amos Kuditcher

发明人： Mohammed N. Islam ,  Amos Kuditcher

IPC分类号： G01C19/72 ,  G02B6/34 ,  G02B26/06 ,  G02B26/08 ,  G02B27/28 ,  G02B26/00

CPC分类号： G02B6/272 ,  G02B6/2773 ,  G02B26/06 ,  G02B26/0808 ,  G02B26/0825 ,  G02B26/0833 ,  G02B26/0841 ,  G02B27/283 ,  G02B27/286 ,  Y10S359/90

摘要： In one aspect of the invention, a polarization controller includes a first polarization beam splitter operable to receive an input optical signal having an input state of polarization and to separate the signal into a first and a second principal mode of polarization. The polarization controller further includes at least three stages of phase shifters each operable to introduce a phase shift between the first and second principal modes, at least one phase shifter comprising a beam splitter that is shared with at least one other of the phase shifters. The at least three stages of phase shifters include a first stage coupled to the first polarization beam splitter and a last stage coupled to a second polarization beam splitter. The second polarization beam splitter is operable to receive phase shifted copies of the first and second principal modes, and to align the phase shifted copies of the principal modes to an output state of polarization.

摘要翻译： 在本发明的一个方面中，偏振控制器包括第一偏振分束器，其可操作以接收具有输入偏振状态的输入光信号并且将信号分离成第一和第二主要偏振模式。 偏振控制器还包括至少三级的移相器，每个级可用于在第一和第二主模之间引入相移，至少一个移相器包括与至少另一个移相器共享的分束器。 至少三级移相器包括耦合到第一偏振分束器的第一级和耦合到第二偏振分束器的最后级。 第二偏振分束器可操作以接收第一和第二主模的相移副本，并将主模的相移副本对准偏振的输出状态。

公开(公告)号：US06597491B2

公开(公告)日：2003-07-22

申请号：US10227056

申请日：2002-08-22

申请人： Mohammed N. Islam ,  Amos Kuditcher

发明人： Mohammed N. Islam ,  Amos Kuditcher

IPC分类号： G02B2600

CPC分类号： G02B6/3516 ,  G02B6/3518 ,  G02B6/3546 ,  G02B6/357 ,  G02B6/3584 ,  G02B6/3594 ,  G02B26/001 ,  G02B26/0833 ,  G02B26/0841

摘要： An optical switch element is described, which includes a fixed layer disposed outwardly from a substrate and a movable mirror assembly disposed outwardly from the fixed layer. The moveable mirror assembly is operable to move relative to the fixed layer responsive to a voltage applied to the movable mirror assembly. In a particular embodiment, the movable mirror assembly includes an inner strip spaced apart from the fixed layer by a first distance and an outer strip disposed approximately adjacent to the inner strip and spaced apart from the fixed layer by a second distance which is greater than the first distance. The optical transmission of the optical switch element changes depending on the position of the movable mirror assembly.

公开(公告)号：US06950225B2

公开(公告)日：2005-09-27

申请号：US10994061

申请日：2004-11-19

申请人： Mohammed N. Islam ,  Amos Kuditcher

发明人： Mohammed N. Islam ,  Amos Kuditcher

IPC分类号： G02B6/34 ,  G02B6/35 ,  G02B26/00 ,  G02B26/08 ,  G03H1/00 ,  H04Q11/00 ,  G02B6/26 ,  G02B27/00

CPC分类号： G02B6/3516 ,  G02B6/3512 ,  G02B6/3518 ,  G02B6/352 ,  G02B6/3546 ,  G02B6/3548 ,  G02B6/3552 ,  G02B6/356 ,  G02B6/357 ,  G02B6/3584 ,  G02B26/001 ,  G02B26/0833 ,  G02B26/0841 ,  H04Q11/0005 ,  H04Q11/0066 ,  H04Q2011/0015 ,  H04Q2011/0016 ,  H04Q2011/002 ,  H04Q2011/0039 ,  H04Q2011/0077

摘要： An optical switch element is described, which includes a fixed layer disposed outwardly from a substrate and a movable mirror assembly disposed outwardly from the fixed layer. The moveable mirror assembly is operable to move relative to the fixed layer responsive to a voltage applied to the movable mirror assembly. In a particular embodiment, the movable mirror assembly includes an inner strip spaced apart from the fixed layer by a first distance and an outer strip disposed approximately adjacent to the inner strip and spaced apart from the fixed layer by a second distance which is greater than the first distance. The optical transmission of the optical switch element changes depending on the position of the movable mirror assembly.

摘要翻译： 描述了一种光学开关元件，其包括从基板向外设置的固定层和从固定层向外设置的可移动反射镜组件。 响应于施加到可移动镜组件的电压，可移动镜组件可操作以相对于固定层移动。 在特定实施例中，可移动反射镜组件包括与固定层隔开第一距离的内条带和设置成大致邻近内条带并与固定层间隔开第二距离的外条，该第二距离大于 第一距离 光开关元件的光传输根据可移动镜组件的位置而变化。

公开(公告)号：US06888661B1

公开(公告)日：2005-05-03

申请号：US10170326

申请日：2002-06-13

申请人： Mohammed N. Islam ,  Amos Kuditcher

发明人： Mohammed N. Islam ,  Amos Kuditcher

IPC分类号： G02F1/01 ,  G02F1/03 ,  G02F1/13 ,  G02F1/07 ,  G02B27/00

CPC分类号： G02F1/01 ,  G02F1/0322 ,  G02F1/13 ,  G02F2201/16 ,  G02F2202/20 ,  G02F2202/32 ,  G02F2203/15

摘要： A tunable optical device includes a thin film device. The thin film device includes a plurality of cavities each including an electro-optic material. The electro-optic material includes an optical characteristic capable of being manipulated by application of an electric field. In this embodiment, at least some of the plurality of cavities are coherently coupled to others of the plurality of cavities. In this embodiment, the plurality of cavities include a sufficient number of cavities to result in an approximately square frequency response for the device.

摘要翻译： 可调谐光学器件包括薄膜器件。 薄膜器件包括多个腔，每个腔包括电光材料。 电光材料包括能够通过施加电场来操纵的光学特性。 在该实施例中，多个空腔中的至少一些腔体相干地耦合到多个空腔中的其它空腔。 在该实施例中，多个空腔包括足够数量的空腔以导致装置的近似平方的频率响应。