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1. 发明授权

US06498872B2 Optical configuration for a dynamic gain equalizer and a configurable add/drop multiplexer 有权
标题翻译：动态增益均衡器和可配置的分插复用器的光学配置
公开(公告)号：US06498872B2
公开(公告)日：2002-12-24
申请号：US09729270
申请日：2000-12-05
申请人： Oleg Bouevitch , Thomas Ducellier , W. John Tomlinson , Paul Colbourne , Jacques Bismuth
发明人： Oleg Bouevitch , Thomas Ducellier , W. John Tomlinson , Paul Colbourne , Jacques Bismuth
IPC分类号： G02B628
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.
摘要翻译：公开了一种用于重新路由和修改能够作为动态增益均衡器（DGE）和/或可配置的光分插复用器（COADM）操作的光信号的光学装置。光学设计包括用于提供准直光束的前端单元，具有用于提供准直/聚焦效果的光焦度的元件，用于提供空间色散的衍射元件以及在优选实施例中包括MEMS 阵列和用于反射和修改光束的至少一部分的液晶阵列。当光学装置作为COADM工作时，修改装置用作衰减器，当光学装置作为DGE工作时，作为开关阵列起作用。有利地，本发明提供一种4-f系统，其中优选实施例具有光功率的元件是凹面反射器，用于提供用于接收来自前端单元的光的单个装置，将接收到的光反射到分散元件，分散元件，并向修改装置提供分散的光。方便和有利地，这种相同的凹面反射器用于返回路径，从而避免了匹配元件的要求。在一个实施例中，单个聚焦/准直透镜基本上设置在具有光焦度的元件的焦平面处。

2. 发明授权

US06721477B2 Dispersion-free optical filters 有权
标题翻译：无色光学滤光片
公开(公告)号：US06721477B2
公开(公告)日：2004-04-13
申请号：US09999911
申请日：2001-05-03
申请人： Oleg Bouevitch , Thomas Ducellier
发明人： Oleg Bouevitch , Thomas Ducellier
IPC分类号： G02B626
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. H2(f)=H1*(f), or the complex conjugate of the first filter H1*(f) multiplied by the transfer function of a dispersion free optical filter G(f).
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/解交织光信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的滤光器，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。

3. 发明授权

US06707959B2 Wavelength switch 有权
标题翻译：波长开关
公开(公告)号：US06707959B2
公开(公告)日：2004-03-16
申请号：US10051176
申请日：2002-01-22
申请人： Thomas Ducellier , Filippus Stefanus Roux , Jacques Bismuth
发明人： Thomas Ducellier , Filippus Stefanus Roux , Jacques Bismuth
IPC分类号： G02B634
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 having optical ports for receiving and transmitting optical signals; a wavelength dispersion element (e.g., diffraction grating, prism, etc.) for defining a dispersion plane; a light redirecting element (e.g., spherical reflector) associated with the wavelength dispersion element; and an actuation array (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 having a fiber array coupled to a micro-lens array with optical signals from the micro-lens being directed by a further lens.
摘要翻译：一种光纤波长开关，包括具有用于接收和发送光信号的光端口的前端单元; 用于限定色散平面的波长色散元件（例如衍射光栅，棱镜等）; 与波长色散元件相关联的光重定向元件（例如，球面反射器）; 以及与光重定向元件一起操作的致动阵列（例如，MEMS），用于倾斜基本垂直于由波长色散元件限定的色散平面的光信号。波长开关可以实现为一个输入/输出端口和几个加/减端口类型的设备，可以从/输入/输出端口添加/删除波长。前端单元具有耦合到微透镜阵列的光纤阵列，其中来自微透镜的光信号由另一透镜引导。

4. 发明授权

US07014326B2 Wavelength blocker 有权
公开(公告)号：US07014326B2
公开(公告)日：2006-03-21
申请号：US10237136
申请日：2002-09-09
申请人： David John Danagher , Thomas Ducellier , Robert I. MacDonald , Jasvinder Obhi , Barrie Keyworth , Paul H. Beckwith , W. John Tomlinson
发明人： David John Danagher , Thomas Ducellier , Robert I. MacDonald , Jasvinder Obhi , Barrie Keyworth , Paul H. Beckwith , W. John Tomlinson
IPC分类号： G02B26/00 , G02B27/44 , H04J14/02
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
摘要： A wavelength blocker including an input port for launching an input beam of light, first dispersing means for dispersing the input beam of light according to wavelength, an array of independently addressable elements for selectively blocking a portion of the dispersed beam of light, second dispersing means for receiving the passed dispersed beam of light and for producing a single multiplexed beam of light therefrom, and an output port for transmitting a modified output beam of light. The array of independently addressable elements are designed such that the wavelength blocker is capable of blocking a variable number of non-consecutive channels without significantly affecting the unblocked channels.

5. 发明授权

US06487334B2 Optical switch 有权
标题翻译：光开关
公开(公告)号：US06487334B2
公开(公告)日：2002-11-26
申请号：US09988267
申请日：2001-11-19
申请人： Thomas Ducellier , Rajiv Iyer , Andrew Tsiboulia , Paul Colbourne , Robert I. MacDonald
发明人： Thomas Ducellier , Rajiv Iyer , Andrew Tsiboulia , Paul Colbourne , Robert I. MacDonald
IPC分类号： G02B626
CPC分类号： G02B6/3556 , G02B6/32 , G02B6/3516 , G02B6/356 , G02B6/3562 , G02B6/3582 , H04J14/02 , H04Q11/0005 , H04Q2011/0015 , H04Q2011/0024 , H04Q2011/0026 , H04Q2011/003 , H04Q2011/0035 , H04Q2011/0037 , H04Q2011/0043 , H04Q2011/0052
摘要： The invention provides an optical switch having an input port for launching a beam of light into the optical switch, at least two output ports, each output port for selectively receiving a beam of light, an ATO element having optical power for providing an angle to offset transformation, and beam directing means for selectively directing a beam of light from the input port to a selected one of the at least two output ports along an optical path via the ATO element. The ATO element is a lens or a mirror.
摘要翻译：本发明提供了一种光开关，其具有用于将光束发射到光开关中的输入端口，至少两个输出端口，用于选择性地接收光束的每个输出端口，具有用于提供偏移角的光焦度的ATO元件变换和光束定向装置，用于经由ATO元件沿着光路选择性地将来自输入端口的光束引导到至少两个输出端口中的所选择的一个。 ATO元件是透镜或镜子。

6. 发明授权

US07321704B2 Wavelength cross connect with per port performance characteristics 有权
标题翻译：波长交叉连接每端口的性能特点
公开(公告)号：US07321704B2
公开(公告)日：2008-01-22
申请号：US11483106
申请日：2006-07-10
申请人： Thomas Ducellier , Alan Hnatiw , Puja Sehgal , Eliseo Ranalli
发明人： Thomas Ducellier , Alan Hnatiw , Puja Sehgal , Eliseo Ranalli
IPC分类号： G02B6/42
CPC分类号： H04Q11/0005 , G02B6/12011 , G02B6/12019 , H04Q2011/0024 , H04Q2011/003 , H04Q2011/0032 , H04Q2011/0049
摘要： A wavelength cross connect is provided in which there is a dispersive arrangement per port for each input port and each output port. Some of the dispersive arrangements have differing characteristics so as to result in different performances at the ports. The dispersive arrangements can differ in the selection of different dispersive elements or differing coupling optics. A particular implementation features a first set of waveguide dispersive elements having first performance characteristics, and a second set of waveguide dispersive elements having second performance characteristics.
摘要翻译：提供波长交叉连接，其中每个端口和每个输出端口具有每个端口的色散布置。一些色散装置具有不同的特性，从而导致端口的不同性能。色散布置在不同色散元件或不同耦合光学元件的选择方面可能不同。特定实施例具有第一组具有第一性能特性的波导色散元件，以及具有第二性能特性的第二组波导色散元件。

7. 发明授权

US07088882B2 Wavelength cross-connect 有权
标题翻译：波长交叉连接
公开(公告)号：US07088882B2
公开(公告)日：2006-08-08
申请号：US10493109
申请日：2003-05-20
申请人： Thomas Ducellier , Alan Hnatiw
发明人： Thomas Ducellier , Alan Hnatiw
IPC分类号： G02B6/26
CPC分类号： G02B6/12011 , G02B6/12019 , G02B6/12033 , G02B6/2931 , G02B6/29311 , G02B6/29313 , G02B6/29382 , G02B6/3512 , G02B6/3526 , G02B6/3528 , G02B6/3534 , G02B6/356 , H04J14/0212 , H04Q11/0005 , H04Q2011/0016 , H04Q2011/0026 , H04Q2011/003 , H04Q2011/0032
摘要： A wavelength cross connect is provided in which wavelength channels are individually switchable from one of a first set of ports to one of a second set of ports. Add and drop capability is provided on the sets of ports. Some embodiments feature a single row of ports, while others feature two dimensional arrays of ports. Some embodiments employ one dispersive element per port, and others employ one dispersive element per row of ports. Embodiments featuring transmissive and non-transmissive switching elements are provided.
摘要翻译：提供波长交叉连接，其中波长信道可以从第一组端口中的一个单独切换到第二组端口中的一个。在端口组上提供了添加和删除功能。一些实施例具有单排端口，而其他实施例具有端口的二维阵列。一些实施例每端口采用一个色散元件，而其他实施例在每行端口采用一个色散元件。提供了具有透射和非透射开关元件的实施例。

8. 发明申请

US20060159395A1 Optical compensator array for dispersive element arrays 审中-公开
标题翻译：用于色散元件阵列的光学补偿器阵列
公开(公告)号：US20060159395A1
公开(公告)日：2006-07-20
申请号：US11300440
申请日：2005-12-15
申请人： Alan Hnatiw , Thomas Ducellier , Eliseo Ranalli , Driss Touahri
发明人： Alan Hnatiw , Thomas Ducellier , Eliseo Ranalli , Driss Touahri
IPC分类号： G02B6/34
CPC分类号： G02B6/12011 , G02B6/12019 , G02B6/12023 , G02B6/1203 , G02B6/29394 , G02B6/3512 , G02B6/356
摘要： An array of dispersive arrangements, for example an array of waveguide dispersive elements, is compensated with a set of optical compensators such as wedges or pairs of cylindrical lenses. The optical compensators are selected to achieve a pre-defined dispersion profile across the array of waveguide dispersive elements. The optical compensators can make corrections for fabrication errors or other errors in an optical system that includes the array of waveguide dispersive elements. A particular application is found in waveguide selective switches.
摘要翻译：分散布置阵列，例如波导色散元件阵列，由一组光学补偿器（例如楔形或成对的柱面透镜）补偿。选择光学补偿器以在波导色散元件阵列上实现预定义的色散曲线。光学补偿器可以对包括波导色散元件阵列的光学系统中的制造误差或其他误差进行校正。在波导选择开关中发现了一个特定的应用。

9. 发明授权

US06570711B2 Virtual waveplate and optical channel interleaver formed therewith 失效
公开(公告)号：US06570711B2
公开(公告)日：2003-05-27
申请号：US09917808
申请日：2001-07-31
申请人： Thomas Ducellier
发明人： Thomas Ducellier
IPC分类号： G02B2714
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.

10. 发明授权

US06424443B1 Optical signal resynchronization method and device 失效
标题翻译：光信号再同步化方法及装置
公开(公告)号：US06424443B1
公开(公告)日：2002-07-23
申请号：US09245334
申请日：1999-02-05
申请人： Patrick Brindel , Thomas Ducellier
发明人： Patrick Brindel , Thomas Ducellier
IPC分类号： H04B1000
CPC分类号： H04L7/0075
摘要： To resynchronize input optical signals with different optical carrier frequencies f1, f2 a delayed optical signal is created by applying a variable time-delay to one of the signals. A combination signal is formed by coupling measurement optical signals respectively obtained from the delayed signal and from the other input signal. A mixed signal is formed by injecting the combination signal into a non-linear optical device. A filtered signal is formed from the mixed signal using a filter tuned to an optical frequency f3 equal to p.f1+q.f2, p and q being relative integers such that the frequency f3 is different to the frequencies f1 and f2 of the carrier waves. The variable time-delay is controlled in accordance with a control electrical signal representative of the average value of the intensity of the filtered signal. Applications include wavelength-division multiplex optical communication systems.
摘要翻译：为了使具有不同光载波频率f1，f2的输入光信号重新同步，通过对一个信号应用可变时间延迟来产生延迟的光信号。通过耦合从延迟信号和另一输入信号分别获得的测量光信号来形成组合信号。通过将组合信号注入到非线性光学装置中来形成混合信号。使用调谐到等于p.f1 + q.f2的光频率f3的滤波器从混合信号形成滤波信号，p和q是相对整数，使得频率f3不同于载波的频率f1和f2 波浪。可变时间延迟根据表示滤波信号的强度的平均值的控制电信号来控制。应用包括波分复用光通信系统。

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