公开(公告)号：US20040223684A1

公开(公告)日：2004-11-11

申请号：US10434153

申请日：2003-05-09

申请人： Creo SRL

发明人： Daniel R. Weinkam ,  Thomas W. Steiner

IPC分类号： G02B006/35

CPC分类号： G02B6/3586 ,  G02B6/3508 ,  G02B6/3556 ,  G02B6/356 ,  G02B6/359

摘要： An optical cross connect switch includes a number of monitor channels. The monitor channels can be used to calibrate the switch while it is in operation. The coordinates associated with individual channels of the switching unit may be represented in a common coordinate system. Transformations between the common coordinate system and coordinate systems of individual channels may be adjusted to compensate for drift.

摘要翻译： 光交叉连接开关包括多个监视通道。 监视器通道可用于在开关运行时对其进行校准。 与切换单元的各个通道相关联的坐标可以在公共坐标系中表示。 可以调整各个通道的公共坐标系和坐标系之间的变换以补偿漂移。

公开(公告)号：US20040213509A1

公开(公告)日：2004-10-28

申请号：US10420078

申请日：2003-04-22

发明人： Junhua Liu ,  Aroon Tungare ,  Min-Xian Zhang

IPC分类号： G02B006/35

CPC分类号： G02B6/3566 ,  G02B6/3512 ,  G02B6/357 ,  G02B6/3584

摘要： A MEMS based optical switch comprises a bottom electrode, a cantilever electrode, and a top electrode, all of which overlay a carrier board. An absence of a voltage differential between the top and bottom electrodes locates the cantilever electrode in a neutral position between the top and bottom electrodes. A presence of a voltage differential between the top and bottom electrodes locates the cantilever electrode in a position biased toward either the top electrode or the bottom electrode.

摘要翻译： 基于MEMS的光开关包括底电极，悬臂电极和顶电极，所有这些覆盖在载板上。 顶部和底部电极之间不存在电压差，将悬臂电极定位在顶部和底部电极之间的中性位置。 在顶部和底部电极之间存在电压差，将悬臂电极定位在偏向顶部电极或底部电极的位置。

公开(公告)号：US20040202414A1

公开(公告)日：2004-10-14

申请号：US10413270

申请日：2003-04-14

发明人： Marvin Glenn Wong ,  Arthur Fong

IPC分类号： G02B006/35

CPC分类号： G02B6/3502 ,  G02B6/29361 ,  G02B6/3546 ,  G02B6/3578 ,  G02B6/3582

摘要： A method and apparatus for multiplexing and demultiplexing optical signals. The apparatus includes first and second optical waveguides coupled via an optical coupler. The optical coupler has a coupling waveguide and an optical switching wedge attached to a piezoelectric actuator. In operation, first and second optical signals are received by the first and second optical waveguides, respectively. If the signals are to be combined, the optical switching wedge is moved to a first position where it is optically coupled to the first optical waveguide. The first optical signal is then transmitted, via the coupling waveguide, to the second optical waveguide, where it is combined with the second optical signal. If the signals are not to be combined, the optical switching wedge is moved to a second position where it is optically uncoupled from the first optical waveguide.

摘要翻译： 一种用于复用和解复用光信号的方法和装置。 该装置包括通过光耦合器耦合的第一和第二光波导。 光耦合器具有耦合波导和附接到压电致动器的光学切换楔。 在操作中，第一和第二光信号分别由第一和第二光波导接收。 如果要组合信号，则光学切换楔块被移动到第一位置，在第一位置光学耦合到第一光波导。 然后，第一光信号经由耦合波导传输到第二光波导，在该第二光波导处与第二光信号组合。 如果信号不被组合，则光学切换楔形件移动到第二位置，在第二位置，光学切换楔形件与第一光学波导光学地分离。

公开(公告)号：US20040184708A1

公开(公告)日：2004-09-23

申请号：US10392371

申请日：2003-03-18

申请人： Continuum Photonics, Inc.

发明人： Kamyar Ghandi ,  Nesbitt Ward Hagood IV ,  Timothy Scott Glenn

IPC分类号： G02B006/35 ,  G02B006/32

CPC分类号： G02B6/3502 ,  G02B6/3556 ,  G02B6/3558 ,  G02B6/3578 ,  G02B6/359 ,  H04Q11/0005 ,  H04Q2011/003 ,  H04Q2011/0039 ,  H04Q2011/0049

摘要： A free space optical switch that uses both an open loop control mode and a closed loop control mode. The open loop control mode is used to transition to a state where at least some light is sensed at a destination port. A closed loop control mode is then used, whereby a series of controlled dither signals are adjusted for system dynamics. Modifying the dither signals in this matter allows moving actuators at a rate that is much closer to the natural frequency of the underlying system, and hence speeds up the system convergence process. Variable modulation amplitudes may be employed on the dither signals to maximize convergence speed. In particular, changes in the dither signal can be made in accordance with the change in amplitude as a function of a gradient along a parabola that models the optical system response. According to still further aspects, the dither signals may be compensated for a desired and selectable attenuation level of output optical power.

摘要翻译： 一种使用开环控制模式和闭环控制模式的自由空间光开关。 开环控制模式用于转换到在目的地端口处感测至少一些光的状态。 然后使用闭环控制模式，由此针对系统动态调整一系列受控抖动信号。 在此事项中修改抖动信号允许以更接近底层系统固有频率的速度移动执行器，从而加快系统收敛过程。 可以在抖动信号上采用可变调制幅度来最大化收敛速度。 特别地，抖动信号的变化可以根据作为对抛物线的梯度的函数的幅度变化进行，该抛物线对光学系统响应进行建模。 根据另外的方面，抖动信号可被补偿输出光功率的期望和可选择的衰减水平。

公开(公告)号：US20040175069A1

公开(公告)日：2004-09-09

申请号：US10779732

申请日：2004-02-18

申请人： ALCATEL

发明人： Thierry Zami

IPC分类号： G02B006/35 ,  H04J014/00 ,  G02B006/28

CPC分类号： H04Q11/0005 ,  H04Q2011/0016 ,  H04Q2011/0024 ,  H04Q2011/0033 ,  H04Q2011/0047

摘要： A selection module for use in an optical signal switch comprises a spatial selector comprising a plurality of inputs each receiving a wavelength division multiplexed optical signal comprising a plurality of channels each associated with a separate wavelength, an output delivering a single signal selected from the plurality of wavelength division multiplexed signals, and a plurality of spectral selectors each selecting a channel from a plurality of channels of the signal selected by the spatial selector.

摘要翻译： 用于光信号开关的选择模块包括空间选择器，其包括多个输入端，每个输入端接收包括与单独波长相关联的多个通道的波分复用光信号，输出传送从多个 波分复用信号，以及多个频谱选择器，每个频谱选择器从由空间选择器选择的信号的多个信道中选择一个信道。

公开(公告)号：US20040165816A1

公开(公告)日：2004-08-26

申请号：US10786082

申请日：2004-02-26

申请人： Fujitsu Limited

发明人： Yoichi Oikawa ,  Makoto Murakami ,  Takehisa Ishikawa

IPC分类号： G02B006/35

CPC分类号： H04Q11/0005 ,  H04Q2011/0011 ,  H04Q2011/0016 ,  H04Q2011/002 ,  H04Q2011/0045 ,  H04Q2011/0049

摘要： An optical cross-connect apparatus that realizes high throughput in optical cross-connection by performing large-scale switching. An input optical signal processing section converts wavelengths contained in each input WDM signal into wavelengths the number of which is equal to the number of WDM signals, compresses the pulse widths of the WDM signals by dividing the pulse widths by the number of the wavelengths contained in each input WDM signal, and performs a phase shift so that the phases of a plurality of compressed signal will not be the same. A wavelength switching section includes passive optical devices and distributes the optical signals processed by the input optical signal processing section according to wavelengths. An output optical signal processing section converts wavelengths contained in the optical signals distributed by the wavelength switching section into wavelengths recognized from the phases of the optical signals, expands the pulse widths of the optical signals, and outputs WDM signals.

摘要翻译： 一种光交叉连接装置，通过进行大规模切换，实现光交叉连接中的高吞吐量。 输入光信号处理部分将每个输入WDM信号中包含的波长转换为数量等于WDM信号数的波长，通过将脉冲宽度除以波长数目的波长数来压缩WDM信号的脉冲宽度 每个输入WDM信号，并且执行相移，使得多个压缩信号的相位将不相同。 波长切换部分包括无源光学装置，并根据波长分配由输入光信号处理部分处理的光信号。 输出光信号处理部将由波长切换部分散的光信号中包含的波长变换为从光信号的相位识别的波长，扩大光信号的脉冲宽度，并输出WDM信号。

公开(公告)号：US20040131306A1

公开(公告)日：2004-07-08

申请号：US10718116

申请日：2003-11-20

发明人： Norihiro Dejima ,  Norio Chiba ,  Kenji Kato ,  Toshiya Kubo ,  Hiromitsu Nakayama ,  Takashi Niwa

IPC分类号： G02B006/35

CPC分类号： G02B6/3514 ,  G02B6/262 ,  G02B6/266 ,  G02B6/3546 ,  G02B6/356 ,  G02B6/3594

摘要： The invention equalizes the lengths of optical paths required in optical communication among optical paths constructed by plural optical fibers. Optical fibers parallel to each other at non-equal intervals are set to ADD, OUT, IN and DROP, and are used for add-drop. An ADD-OUT optical path of an optical path length Anull2E from the optical fiber to the optical fiber through a fixing mirror and a movable mirror, and an IN-DROP optical path of an optical path length Cnull2E from the optical fiber to the optical fiber through a movable mirror and a fixing mirror are formed. When the movable mirrors are escaped, an ADD-DROP optical path of an optical path length AnullBnullCnull2E from the optical fiber to the optical fiber through the fixing mirrors, and an IN-OUT optical path of an optical path length Bnull2Dnull2E from the optical fiber to the optical fiber through fixing mirrors are formed. Three optical paths except for ADD-DROP are set to the same length by setting AnullCnullBnull2D.

摘要翻译： 本发明使由多根光纤构成的光路之间的光通信所需的光路的长度相等。 以不等间隔彼此平行的光纤设置为ADD，OUT，IN和DROP，并用于分插。 通过定影镜和可移动反射镜从光纤到光纤的光路长度A + 2E的ADD-OUT光路以及来自光纤的光程长度C + 2E的IN-DROP光路 形成通过可动镜和定影镜的光纤。 当可移动反射镜逃逸时，通过定影镜从光纤到光纤的光程长度A + B + C + 2E的ADD-DROP光路和光路长度的IN-OUT光路 形成从光纤到固定镜的光纤的B + 2D + 2E。 通过设置A = C = B + 2D，将除ADD-DROP之外的三个光路设置为相同的长度。

公开(公告)号：US20040091201A1

公开(公告)日：2004-05-13

申请号：US10433752

申请日：2003-12-16

发明人： Claire Divoux ,  Claude Chabrol

IPC分类号： G02B006/35

CPC分类号： G02B26/004 ,  G02B6/3538 ,  G02B6/3546 ,  G02B6/3552 ,  G02B6/357

摘要： The present invention relates to an optical micro-actuator comprising a cavity (30) formed between at least one optical input channel (12, 12a, 12b) and at least one optical output channel (14, 14a, 14b), the cavity being capable of containing at least one first optical fluid and one second optical fluid (32, 33, 34, 35), with different optical properties, and means of modifying the position of an interface between the first and second optical fluids with respect to the optical channels. According to the invention, the means of modifying the position of the interface comprise at least one chamber containing at least one fluid in fluid contact with the cavity, and means of modifying the volume of the chamber. Application to making optical switches and mixers.

摘要翻译： 本发明涉及一种光学微致动器，其包括形成在至少一个光学输入通道（12,12a，12b）和至少一个光学输出通道（14,14a，14b）之间的空腔（30），所述空腔能够 包含具有不同光学性质的至少一个第一光学流体和一个第二光学流体（32,33,34,35），以及相对于光学通道修改第一和第二光学流体之间的界面的位置的装置 。 根据本发明，修改界面位置的装置包括至少一个容纳至少一个与空腔流体接触的流体的室，以及改变室的体积的装置。 应用于制造光开关和混频器。

公开(公告)号：US20040067012A1

公开(公告)日：2004-04-08

申请号：US10266307

申请日：2002-10-07

发明人： Dale W. Schroeder ,  John J. Uebbing

IPC分类号： G02B006/35

CPC分类号： G02B6/3538 ,  G02B6/3546 ,  G02B6/3576

摘要： An optical switch having liquid or bubbles in switching sites operates with a fluid pressure less than the vapor pressure of the liquid. This pressure differential is equal to the surface tension induced pressure drop across a bubble having a critical size selected according to switching site geometry. Each switching site has a stable state including a bubble larger than the critical size and another stable state with no bubble. Local heating provides nucleation energy to create a bubble but is not required to maintain the bubble. Globally or locally increasing the fluid pressure collapses bubbles in switching sites to reset all or selected switching sites. One switching site creates rapidly expanding bubbles near but outside the optical cavity of the switching site. The bubble's expansion causes liquid flow that locally increases pressure and collapses a bubble in the optical cavity or pushes the bubble from the optical cavity into an absorber cavity.

摘要翻译： 在开关位置中具有液体或气泡的光学开关以低于液体的蒸汽压力的流体压力进行操作。 该压力差等于具有根据切换位置几何形状选择的临界尺寸的气泡上的表面张力引起的压降。 每个开关位置具有包括大于临界尺寸的气泡的稳定状态和没有气泡的另一个稳定状态。 本地加热提供成核能以产生气泡，但不需要保持气泡。 全球或局部增加流体压力会使开关点中的气泡崩溃，以重置所有或选定的切换点。 一个切换站点在切换站点的光腔附近或外部产生快速膨胀的气泡。 气泡的膨胀导致液体流动，其局部增加压力并塌陷光学腔中的气泡或将气泡从光学腔推入吸收腔。

公开(公告)号：US20040057654A1

公开(公告)日：2004-03-25

申请号：US10466234

申请日：2003-07-11

发明人： David Baasch ,  Charles Osborne

IPC分类号： G02B006/35

CPC分类号： G02B6/3572 ,  G02B6/3502 ,  G02B6/355 ,  G02B6/3582

摘要： Disclosed are devices and methods for switching transmission of light from one optical fiber to another. A steerable fiber has an end in a capsule, as do one or more cooperating fibers. Initially the steerable fiber is at a rest position, from where it couples light into one of the cooperating fibers. The end of the steerable fiber includes an armature that moves in response to applied magnetic fields. Then a magnetic field is generated selectively, and a pair of pole pieces transfers it to a location inside the capsule, which is close to the armature. Thus the end of the steerable fiber is moved to another position, from where it couples light into the other cooperating fiber.

摘要翻译： 公开了用于将光从一根光纤传输到另一根光纤的装置和方法。 可转向纤维在胶囊中具有一端，如同一种或多种协同纤维一样。 最初，可操纵的纤维处于静止位置，从那里将光耦合到合作纤维之一中。 可转向光纤的端部包括响应于所施加的磁场而移动的电枢。 然后选择性地产生磁场，并且一对极片将其传送到胶囊内靠近电枢的位置。 因此，可转向光纤的端部移动到另一位置，从那里将光耦合到另一个协作光纤中。