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    Bi-directional isolator
    2.
    发明授权
    Bi-directional isolator 失效
    双向隔离器

    公开(公告)号：US06587266B2

    公开(公告)日：2003-07-01

    申请号：US09930266

    申请日：2001-08-16

    申请人： Kuochou Tai ,  Kok-Wai Chang ,  Jyehong Chen ,  Thomas Ducellier ,  Yihao Cheng

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

    IPC分类号： G02B530

    CPC分类号： H01S3/06754 ,  G02B6/2746 ,  G02F1/093 ,  G02F2201/17 ,  H01S3/10023 ,  H01S2301/04 ,  Y10S372/703

    摘要： Bi-directional wavelength interleaving optical isolators provide the ability to pass a first set of optical signals (e.g., ITU even channels) from a first port to a second port, while preventing a second set of optical signals from passing thereto. The bi-directional wavelength interleaving optical isolators also pass the second set of optical signals (e.g., ITU odd channels) from the second port to the first port, while preventing the first set of optical signals from passing thereto. Thus, the bi-directional wavelength interleaving optical isolator can provide bi-directional communications by passing a first set of signals in a first direction and a second set of signals in a second direction.

    摘要翻译： 双向波长交织光隔离器提供将第一组光信号（例如，ITU甚至信道）从第一端口传递到第二端口的能力，同时防止第二组光信号通过。 双向波长交织光隔离器还将第二组光信号（例如，ITU奇信道）从第二端口传递到第一端口，同时防止第一组光信号通过。 因此，双向波长交织光隔离器可以通过在第一方向上传递第一组信号和在第二方向上传递第二组信号来提供双向通信。

    Multi-cavity interferometer with dispersion compensating resonators
    3.
    发明授权
    Multi-cavity interferometer with dispersion compensating resonators 有权
    具有色散补偿谐振器的多腔干涉仪

    公开(公告)号：US06765679B2

    公开(公告)日：2004-07-20

    申请号：US10150001

    申请日：2002-05-20

    申请人： Thomas Ducellier ,  Kuochou Tai ,  Marie-Josee Picard

    发明人： Thomas Ducellier ,  Kuochou Tai ,  Marie-Josee Picard

    IPC分类号： G01B902

    CPC分类号： G02B6/2713 ,  G02B6/2773 ,  G02B6/29358 ,  G02B6/29394

    摘要： Interleavers, based on a Michelson interferometer with a Gires-Tournois (GT) etalon in each arm, are becoming popular in the filtering of light in the fiber optics telecommunications industry. As the channel spacing becomes closer together, e.g. 50 GHz or 25 GHz, dispersion compensation becomes an important factor in the choice and design of a system. The present invention solves the problem of increased chromatic dispersion by utilizing multi-cavity Gires-Tournois (MCGT) etalons, wherein the dispersion from one MCGT is used to compensate or cancel the dispersion from the other MCGT. In an optimum design for a dual cavity GT etalon, the dispersion profile of the first MCGT will have a similar amplitude and frequency as the dispersion profile of the second MCGT, only shifted by half the period so that the positive slopes of one profile are aligned with the negative slopes of the other profile.

    摘要翻译： Interleavers基于具有Gires-Tournois（GT）标准具的迈克尔逊干涉仪在每个臂中，在光纤通信行业的光过滤中越来越受欢迎。 随着信道间隔越来越近，例如， 50 GHz或25 GHz，色散补偿成为系统选择和设计的重要因素。 本发明通过利用多腔Gires-Tournois（MCGT）标准具来解决增加色散的问题，其中来自一个MCGT的色散用于补偿或消除来自另一MCGT的色散。 在双腔GT标准具的最佳设计中，第一MCGT的色散曲线将具有与第二MCGT的色散曲线相似的幅度和频率，仅偏移了周期的一半，使得一个轮廓的正斜率对准 与另一个轮廓的负斜率。

    Wavelength cross connect with per port performance characteristics
    4.
    发明授权
    Wavelength cross connect with per port performance characteristics 有权
    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。

    Optical compensator array for dispersive element arrays
    6.
    发明申请
    Optical compensator array for dispersive element arrays 审中-公开
    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。

    Dispersion-free optical filters
    7.
    发明授权
    Dispersion-free optical filters 有权
    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。

    Optical signal resynchronization method and device
    9.
    发明授权
    Optical signal resynchronization method and device 失效
    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。

    OPTICAL APPARATUS
    10.
    发明申请
    OPTICAL APPARATUS 有权

    公开(公告)号：US20210263299A1

    公开(公告)日：2021-08-26

    申请号：US17005649

    申请日：2020-08-28

    申请人： Thomas Ducellier ,  Alan Scott ,  Sheng Hai Zheng

    发明人： Thomas Ducellier ,  Alan Scott ,  Sheng Hai Zheng

    IPC分类号： G02B26/08 ,  G03H1/02 ,  H04B10/40

    摘要： An optical system includes a plurality of internal apertures, a plurality of external optical assemblies and a telescope assembly positioned between the plurality of internal apertures and the plurality of external optical assemblies. Each internal aperture is operable to receive a corresponding aperture-specific optical signal. Each external optical assembly corresponds to one of the internal apertures, and each external optical assembly is operable to direct the aperture-specific optical signal of the corresponding internal aperture in a corresponding external direction. The external direction for each external optical assembly is independently controllable and the telescope assembly defines a shared optical train arranged to direct the aperture-specific optical signals between each internal aperture and the corresponding external optical assembly.