公开(公告)号：EP1126294A3

公开(公告)日：2003-03-12

申请号：EP01301296.8

申请日：2001-02-13

申请人： JDS Uniphase Inc.

发明人： Bouevitch, Oleg ,  Ducellier, Thomas ,  Tomlinson, John W. ,  Colbourne, Paul

IPC分类号： G02B6/293 ,  G02B6/34 ,  G02B6/35 ,  G02F1/31

CPC分类号： G02B6/29383 ,  G02B6/2766 ,  G02B6/2773 ,  G02B6/2793 ,  G02B6/2931 ,  G02B6/29313 ,  G02B6/29395 ,  G02B6/29397

摘要： An optical device for rerouting and modifying an optical signal that is capable of operating as a dynamic gain equalizer (DGE) and/or a configurable optical add/drop multiplexer (COADM) is disclosed. The optical design includes a front-end unit for providing a collimated beam of light, an element having optical power for providing collimating/focusing effects, a diffraction element for providing spatial dispersion, and modifying means which in a preferred embodiment includes one of a MEMS array and a liquid crystal array for reflecting and modifying at least a portion of a beam of light. The modifying means functions as an attenuator when the optical device operates as a DGE and as a switching array when the optical device operates as a COADM. Advantageously, this invention provides a 4-f system wherein a preferred embodiment the element having optical power is a concave reflector for providing a single means for receiving light from the front-end unit, reflecting the received light to the dispersive element, receiving light from the dispersive element, and providing dispersed light to the modifying means. Conveniently and advantageously, this same concave reflector is utilized on a return path, obviating the requirement of matching elements. In one embodiment a single focussing/collimating lens is provided substantially at a focal plane of the element having optical power.

公开(公告)号：EP1152265A2

公开(公告)日：2001-11-07

申请号：EP01304152.0

申请日：2001-05-08

申请人： JDS Uniphase Inc.

发明人： Bouevitch, Oleg ,  Ducellier, Thomas

IPC分类号： G02B5/20

CPC分类号： G02B6/272 ,  G02B5/3083 ,  G02B6/12007 ,  G02B6/2766 ,  G02B6/2861 ,  G02B6/29355 ,  G02B6/29386 ,  G02B6/29392 ,  G02B27/288

摘要： The filtering of optical signals, and in particular the interleaving/de-interleaving of optical signals is becoming a necessary step in Dense-Wavelength Division Multiplexing (D-WDM), because of a requirement for smaller channel spacing due to higher levels of traffic. Finite Impulse Response (FIR) filters, including lattice and birefringent waveplate versions, are a particular type of optical filter used for interleavering/de-interleavering optical channels, which can be defined by their transfer function H(f). To ensure dispersion free filtering, the present invention provides a cascaded optical filter, comprising two optical filters, wherein the transfer function of the second filter is the complex conjugate of the first filter, i.e. H 2 (f)=H 1 ∗(f), or the complex conjugate of the first filter H 1 ∗(f) multiplied by the transfer function of a dispersion free optical filter G(f). In the waveplate version, the relationship between the crystal angle of the waveplates and the polarization of the input light is manipulated to ensure that the second filtering step eliminates the dispersion caused by the first. Since the polarization of the light can be altered between the first and second filters, birefringent filters can be conceived using a single stack of waveplates that are passed through twice. In lattice filters, a symmetric pulse response is an indication that the cascaded filter is dispersion free. In this case, the second filter is the inverse of the first filter, which individually would give the opposite pulse responses, but together provide a symmetric pulse response.

摘要翻译： 光信号的滤波，特别是光信号的交织/解交织正在成为密集波分复用（D-WDM）中的必要步骤，因为由于较高的业务量需要更小的信道间隔。 包括晶格和双折射波片版本的有限脉冲响应（FIR）滤波器是用于交织/解交织光通道的特定类型的滤光器，其可以由它们的传递函数H（f）定义。 为了确保无色散滤波，本发明提供了一种级联滤光器，包括两个光滤波器，其中第二滤波器的传递函数是第一滤波器的复共轭，即H 2（f）= H1 *（f）或 第一滤波器H1 *（f）的复共轭乘以无色散滤光器G（f）的传递函数。 在波片版本中，操作波片的晶体角度和输入光的偏振之间的关系，以确保第二滤波步骤消除由第一滤波器引起的色散。 由于可以在第一和第二滤光片之间改变光的偏振，所以可以使用通过两次的一叠波片来构想双折射滤光片。 在格子滤波器中，对称脉冲响应是级联滤波器不分散的指示。 在这种情况下，第二滤波器是第一滤波器的倒数，其分别给出相反的脉冲响应，但是一起提供对称的脉冲响应。

公开(公告)号：EP1298467B1

公开(公告)日：2004-12-29

申请号：EP02256226.8

申请日：2002-09-09

申请人： JDS Uniphase, Inc ,  JDS Uniphase Corporation

发明人： Danagher, David John ,  Ducellier, Thomas ,  MacDonald, Robert I ,  Obhi, Jasvinder ,  Keyworth, Barrie ,  Beckwith, Paul H. ,  Tomlinson, W. John

IPC分类号： G02B6/34 ,  G02B6/35

CPC分类号： G02B6/356 ,  G02B6/272 ,  G02B6/2793 ,  G02B6/29302 ,  G02B6/29308 ,  G02B6/2931 ,  G02B6/3512 ,  G02B6/4215 ,  H04J14/0206 ,  H04J14/0212 ,  H04Q11/0005 ,  H04Q2011/0009 ,  H04Q2011/0016 ,  H04Q2011/0026 ,  H04Q2011/003 ,  H04Q2011/0035 ,  H04Q2011/0049

公开(公告)号：EP1178347A2

公开(公告)日：2002-02-06

申请号：EP01306545.3

申请日：2001-07-31

申请人： JDS Uniphase Inc.

发明人： Ducellier, Thomas

IPC分类号： G02B27/28 ,  G02B6/34 ,  H04J14/06

CPC分类号： G02B6/29302 ,  G02B5/3083 ,  G02B6/272 ,  G02B6/2766 ,  G02B6/2773 ,  G02B6/29386 ,  G02B6/34 ,  G02B6/4208 ,  G02B27/283 ,  G02B27/288 ,  H04J14/02 ,  H04J14/06 ,  Y10S372/703

摘要： A conventional interleaver, based on a stack of waveplates, relies on the orientation and the birefringence of the waveplates to differentiate the polarizations of one set of channels from another, so that the one set of channels can be separated from the other. The present invention relates to a virtual waveplate that is used to replace a birefringent waveplate. A virtual waveplate imposes a phase delay between the extraordinary ray and the ordinary ray by separating one from the other and differentiating the actual path lengths taken thereby, before recombining them. An interleaver constructed with the virtual waveplates of the present invention can be substantially a-thermal and potentially chromatic dispersion free.

摘要翻译： 一种交织器，包括：用于发射输入光信号的第一端口，其包括第一和第二组信道; 用于输出第一组通道的第二端口; 用于输出第二组通道的第三端口; 虚拟波片; 以及用于将第一组通道引导到第二端口并且用于将第二组通道引导到第三端口的偏振光束分离装置。 虚拟波片包括：分束装置，用于将输入信号分成第一和第二正交极化子光束，并且用于沿着第一路径引导第一子光束，沿第二路径引导第二子光束; 所述第一路径中的第一反射装置用于将所述第一子光束重新导向所述第一光束分离装置; 所述第二路径中的第二反射装置用于将所述第二子光束重定向到所述第一光束分离装置，用于与形成第一重新组合信号的所述第一子光束进行重新组合; 以及用于在第一和第二子光束之间施加相对延迟的第一路径中的延迟装置，由此当第一和第二子光束复合时，第一组通道相对于第二组通道正交极化。

公开(公告)号：EP1079249A2

公开(公告)日：2001-02-28

申请号：EP00303624.1

申请日：2000-04-28

申请人： JDS Uniphase Inc.

发明人： Ducellier, Thomas ,  Cheng, Yihao

IPC分类号： G02B6/34 ,  G02B6/42 ,  G02F1/09

CPC分类号： G02B6/2746 ,  G02B6/2937 ,  G02F1/0136 ,  G02F1/09 ,  G02F1/093 ,  G02F2203/055 ,  H01S3/06754 ,  H01S3/10023 ,  H01S2301/04

摘要： A bi-directional wavelength dependent optical isolator is disclosed having two thick birefringent plates having their optical axes oriented such that their birefringent axes are oriented differently and a non-reciprocal element. The thick plates have a periodic wavelength response with polarization. In operation even channels are passed while odd channels are blocked in a first direction from port 1 to port 2 and conversely, even channels are blocked and odd channels are passed in a second opposite direction from port 2 to port 1.

摘要翻译： 公开了一种双向波长相关光隔离器，其具有两个厚双折射板，其光轴定向成使得它们的双折射轴取向不同，并具有不可逆元件。 厚板具有极化的周期性波长响应。 在操作中，偶数通道在从端口1到端口2的第一方向被阻塞的情况下通过，相反地，偶数通道被阻塞，并且奇数通道在从端口2到端口1的第二相反方向上通过。

公开(公告)号：EP1283428A1

公开(公告)日：2003-02-12

申请号：EP02254805.1

申请日：2002-07-09

申请人： JDS Uniphase Inc.

发明人： Ducellier, Thomas ,  Roux, Filippus Stefanus ,  Bismuth, Jacques

IPC分类号： G02B6/34 ,  G02B6/293 ,  G02B6/35 ,  H04J14/02 ,  H04Q11/00

CPC分类号： G02B6/356 ,  G02B6/272 ,  G02B6/2931 ,  G02B6/29373 ,  G02B6/3512 ,  G02B6/3592

摘要： A fiber optic wavelength switch that includes a front-end unit (122) having optical ports for receiving and transmitting optical signals; a wavelength dispersion element (124) (e.g., diffraction grating, prism, etc.) for defining a dispersion plane; a light redirecting element (120) (e.g., spherical reflector) associated with the wavelength dispersion element; and an actuation array (126) (e.g., MEMS) operative with the light redirecting element for tilting an optical signal substantially perpendicular to the dispersion plane defined by the wavelength dispersion element. The wavelength switch can be implemented as a one input/output port and several add/drop ports type device, which can add/drop wavelengths from/to the in/out port. The front-end unit can have a fiber array coupled to a micro-lens array with optical signals from the micro-lens being directed by a further lens.

公开(公告)号：EP1235086A2

公开(公告)日：2002-08-28

申请号：EP02251219.8

申请日：2002-02-22

申请人： JDS Uniphase Inc. ,  JDS Uniphase Corporation

发明人： Copner, Nigel ,  Tan, Kim Leong ,  Abraham, Christopher John ,  Ducellier, Thomas ,  Picard, Marie Josee

IPC分类号： G02B6/293

CPC分类号： G02B6/12007 ,  G02B6/272 ,  G02B6/2766 ,  G02B6/2773 ,  G02B6/29302 ,  G02B6/29347 ,  G02B6/29349 ,  G02B6/29352 ,  G02B6/29358 ,  G02B6/29386

摘要： The present invention relates to an interferometer useful in the interleaving and deinterleaving of optical wavelength channels. Typically the invention comprises a beamsplitter and two resonators, e.g. GT etalons or ring resonators. The beamsplitter splits an input beam of light into a first sub-beam directed to follow a first path and a second sub-beam directed to follow a second path. The first resonator has a first effective cavity length and receives the first sub-beam. The second resonator has a second effective cavity length and receives the second sub-beam. The first path and the second path have an effective optical path difference approximately equal to one-half the first effective cavity length. In one embodiment, the front plates of the GT etalons each have a different reflectivity, and are selected to provide a desired spectral response. In another embodiment, the two resonators are slightly de-phased from one another such that the positive dispersion slope of the first resonator is aligned with the negative dispersion slope of the second resonator. Polarization-based versions of the invention are disclosed, in which a single resonator receives both sub-beams, which are orthogonally polarized. Single etalon versions of the invention are also possible, in which a beam is separated into sub-beams (i.e. reflected and transmitted beams) within a non-linear interferometer, and then re-combined outside the interferometer with the appropriate effective optical path length delay therebetween.

摘要翻译： 本发明涉及可用于光波长信道的交织和解交织的干涉仪。 通常，本发明包括分束器和两个谐振器，例如。 GT标准具或环形谐振器。 分束器将输入光束分成指向跟随第一路径的第一子光束和指向跟随第二路径的第二子光束。 第一谐振器具有第一有效腔长并接收第一子光束。 第二谐振器具有第二有效腔长度并且接收第二子光束。 第一路径和第二路径具有大致等于第一有效腔长度的一半的有效光程差。 在一个实施例中，GT标准具的前板各自具有不同的反射率，并且被选择以提供期望的光谱响应。 在另一个实施例中，两个谐振器彼此稍微去相位，使得第一谐振器的正色散斜率与第二谐振器的负色散斜率对准。 公开了本发明的基于偏振的版本，其中单个谐振器接收正交极化的两个子光束。 本发明的单个标准具版本也是可能的，其中将光束分离成非线性干涉仪内的子光束（即反射和透射光束），然后在干涉仪外部以适当的有效光程长度延迟重新组合 其间。

公开(公告)号：EP1103838A2

公开(公告)日：2001-05-30

申请号：EP00310410.6

申请日：2000-11-23

申请人： JDS Uniphase Inc.

发明人： Ducellier, Thomas ,  Cheng, Yihao

IPC分类号： G02F1/09 ,  G02B6/26

CPC分类号： G02B6/272 ,  G02B6/2766 ,  G02B6/29395 ,  G02F1/093 ,  G02F1/31

摘要： This invention relates to optical devices that use the state of polarization (SOP) of the orthogonally polarized sub-beams of a composite optical signal to select pathways through a set of birefringent components. The SOP of the sub-beams is changed to affect the resulting path through the birefringent components and in this manner the sub-beams can be separated, mixed with other sub-beams and or recombined with the original sub-beams to form new signals at different locations (ports) of the optical devices presented. The use of the basic system to built more complicated systems results in a closed four port optical circulator based on birefringent crystals. The basic system is also used to construct an optical switch and an optical add/drop switch based on birefringent crystals.

摘要翻译： 本发明涉及使用复合光信号的正交极化子束的偏振状态（SOP）来选择通过一组双折射分量的路径的光学器件。 子光束的SOP被改变以影响通过双折射分量的所得路径，并且以这种方式，子光束可以被分离，与其他子光束混合，或者与原始子光束重新组合以形成新信号 所呈现的光学装置的不同位置（端口）。 使用基本系统构建更复杂的系统导致基于双折射晶体的封闭的四端口光循环器。 基本系统也用于构建基于双折射晶体的光开关和光分插开关。

公开(公告)号：EP1152265A3

公开(公告)日：2003-12-17

申请号：EP01304152.0

申请日：2001-05-08

申请人： JDS Uniphase Inc.

发明人： Bouevitch, Oleg ,  Ducellier, Thomas

IPC分类号： G02B5/20 ,  G02B6/34

CPC分类号： G02B6/272 ,  G02B5/3083 ,  G02B6/12007 ,  G02B6/2766 ,  G02B6/2861 ,  G02B6/29355 ,  G02B6/29386 ,  G02B6/29392 ,  G02B27/288

摘要： The filtering of optical signals, and in particular the interleaving/de-interleaving of optical signals is becoming a necessary step in Dense-Wavelength Division Multiplexing (D-WDM), because of a requirement for smaller channel spacing due to higher levels of traffic. Finite Impulse Response (FIR) filters, including lattice and birefringent waveplate versions, are a particular type of optical filter used for interleavering/de-interleavering optical channels, which can be defined by their transfer function H(f). To ensure dispersion free filtering, the present invention provides a cascaded optical filter, comprising two optical filters, wherein the transfer function of the second filter is the complex conjugate of the first filter, i.e. H 2 (f)=H 1 (f), or the complex conjugate of the first filter H 1 (f) multiplied by the transfer function of a dispersion free optical filter G(f). In the waveplate version, the relationship between the crystal angle of the waveplates and the polarization of the input light is manipulated to ensure that the second filtering step eliminates the dispersion caused by the first. Since the polarization of the light can be altered between the first and second filters, birefringent filters can be conceived using a single stack of waveplates that are passed through twice. In lattice filters, a symmetric pulse response is an indication that the cascaded filter is dispersion free. In this case, the second filter is the inverse of the first filter, which individually would give the opposite pulse responses, but together provide a symmetric pulse response.

公开(公告)号：EP1182492A3

公开(公告)日：2002-12-18

申请号：EP01307104.8

申请日：2001-08-21

申请人： JDS Uniphase Inc. ,  JDS Uniphase Corporation

发明人： Ducellier, Thomas ,  Tai, Kuochou ,  Chang, Kok-Wai ,  Chen, Jyehong ,  Cheng, Yihao

IPC分类号： G02F1/09 ,  H04J14/02

CPC分类号： G02F1/093 ,  G02F2203/05

摘要： The present invention relates to bi-directional circulators based on interleaver technology, e.g. birefringent crystal interleaver technology, that enables signals containing even number ITU channels to travel in one direction through the device, while signals containing odd number ITU channels travel in the opposite direction. Open and closed three and four port devices are disclosed, as well as several useful implementations of the three port device in combination with other optical components, which result in hybrid uni-directional and bi-directional devices.