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1.发明公开
公开(公告)号：EP3206063A4
公开(公告)日：2017-10-11
申请号：EP15849473
申请日：2015-10-06
申请人： UNIV FED DO PARÁ
CPC分类号： G02F1/313 , G02B6/122 , G02B6/1225 , G02F1/01 , G02F1/0955 , G02F1/295 , G02F2202/32
摘要： The present invention is based on a two-dimensional photonic crystal in which are inserted four waveguides and one resonant cavity. Due to the existence of the photonic band gap, an electromagnetic signal that flows through the device is confined to the interior of the cavity and waveguides and, by adjusting the orientation of a dipole mode excited in the resonator, it can operate in three distinct regimes. In regime 1, subjected to an external DC magnetic field + H 0 , it operates as a two-way divider, with isolation of the input from the two outputs, and, by inverting the sign of the DC magnetic field, as an optical switch. In regime 2, with the application of a DC magnetic field -Ho, it operates as a waveguide bending element, with isolation of input from output, and, by inverting the sign of the DC magnetic field, as an optical switch. In regime 3, subjected to the application of an external DC magnetic field + H 1 , the device operates as a three-way divider.
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公开(公告)号：EP1914587B1
公开(公告)日：2016-09-14
申请号：EP07014663.4
申请日：2007-07-26
申请人： Fujitsu Ltd.
发明人： Takita, Yutaka
CPC分类号： G02F1/0516 , G02F1/035 , G02F1/313 , H03K17/04126 , H03K17/602
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公开(公告)号：EP1963913B1
公开(公告)日：2010-02-24
申请号：EP06832116.5
申请日：2006-12-06
发明人： SCHULZ, Volkmar
CPC分类号： G02F1/25 , G02F1/133621 , G02F1/295 , G02F1/313 , G02F2/02
摘要： A light-emitting device for emitting light having a desired color point, comprising at least one solid-state light source (1), at least one light-converting element (5), a light guiding arrangement (2) and a switch control unit (4), wherein the solid-state light source (1) is provided for emitting primary radiation (20), the light guiding arrangement (2) arranged between the solid-state light source (1) and the light-converting element (5) has at least one electro-optical switch (31) for controllably splitting the primary radiation (20) into a first portion (21) and a second portion (22), the switch control unit (4) is provided for controlling the electro-optical switch or switches (31) for variably adjusting the ratio between the first (21) and the second portion (22) of the primary radiation (20), and the light- converting element (5) is provided for the partial or complete absorption of at least a first portion (21) of the primary radiation (20) and for the re-emission of secondary radiation.
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公开(公告)号：EP1914587A3
公开(公告)日：2008-05-21
申请号：EP07014663.4
申请日：2007-07-26
申请人： Fujitsu Ltd.
发明人： Takita, Yutaka
IPC分类号： G02F1/05 , H03K17/041
CPC分类号： G02F1/0516 , G02F1/035 , G02F1/313 , H03K17/04126 , H03K17/602
摘要： A capacitive load driving device (fig 4 or fig 7) for an optical matrix switch or router (fig 3). The optical switch is based on ferroelectric lead lanthanum zirconate titanate (PLZT) thin film layers having prism shaped electrodes, which act as deflector switches. Light from an incoming optical fibre array (11) is collimated by a first waveguide lens array (12) before entering a first deflector switch array (13). The deflected beams are then passed through a slab waveguide (15) to a second deflector switch array (16) after which they pass through a second waveguide lens array (17) before being focused into an output fibre array (18). The deflector switches form the capacitive load (28) to be driven and are subjected to a multilevel voltage signal in order to control the routing between the input and output fibre arrays. The capacitive load driving device consists of a voltage control signal generator unit (21) and a voltage amplifier unit (23) which amplifies the voltage control signal. The amplified signal is then fed into the base of a current amplifier (24) which then charges the capacitive load. In order to facilitate high speed switching and in particular a rapid discharge of the deflector switches when the voltage control signal is decreased to a lower level, a switching circuit (26) is provided parallel to the load (28). The switching circuit is triggered by a pulse having a predetermined duration from a falling control signal generator unit. The latter provides a pulse whenever the drop in the control voltage signal exceed a predetermined non-zero threshold value or the rate of decrease in the voltage control signal exceeds a certain amount. The switching circuit exhibits a "pull-down" arrangement to rapidly discharge the capacitive load on receiving the triggering pulse.
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公开(公告)号：EP1340122B1
公开(公告)日：2006-09-06
申请号：EP01995576.4
申请日：2001-12-04
发明人： PERTSCH, Thomas , PESCHEL, Ulf , BRÄUER, Andreas , LEDERER, Falk
CPC分类号： G02F1/395 , G02F1/0508 , G02F1/313 , G02F1/3515 , G02F1/3521 , G02F1/3534 , G02F1/365 , G02F2001/3548 , G02F2202/20
摘要： The invention relates to an optical system for opto-optical information processing, which can be used in the field of integrated optics, especially for light-controlled switching, branching light and regenerating optical signals in communications networks. The aim of the invention is to provide a means of processing optical signals simply and flexibly. The inventive optical system uses a waveguide array in which the individual waveguides are coupled evanescently. At least one signal beam of a known wavelength is coupled into the waveguide array at an angle which prevents the signal beam from being diffracted when passing through said waveguide array, with at least one control beam of a known wavelength. The signal beam and the control beam cross inside the waveguide array, so an influence can be exerted.
摘要翻译： 用于光信息处理的光学系统技术领域本发明涉及一种用于光信息处理的光学系统，其可以用于集成光学领域，尤其用于通信网络中的光控切换，分支光以及再生光信号。 本发明的目的是提供简单灵活地处理光信号的手段。 本发明的光学系统使用波导阵列，其中各个波导eva逝地耦合。 已知波长的至少一个信号光束以防止信号光束在通过所述波导阵列时被衍射的角度与至少一个已知波长的控制光束耦合到波导阵列中。 信号光束和控制光束在波导阵列内部交叉，因此可以发挥影响。
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公开(公告)号：EP1326132B1
公开(公告)日：2006-06-07
申请号：EP03250069.6
申请日：2003-01-07
IPC分类号： G02F1/313
CPC分类号： G02F1/313 , G02F1/1326 , G02F2202/32 , Y10T16/188 , Y10T16/199
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公开(公告)号：EP1417532A1
公开(公告)日：2004-05-12
申请号：EP02795483.3
申请日：2002-07-16
发明人： KHAN, Anisul , KUMAR, Ajay
IPC分类号： G02F1/01
CPC分类号： G02F1/0147 , G02F1/011 , G02F1/313
摘要： Thermo-optic devices including a bottom cladding layer, a patterned core material and a top cladding layer, each having a different refractive index, can be made by depositing a heater material, such as tungsten or chromium, on the outside of the bottom and/or top cladding layer. Depending on the refractive index differences between the cladding layers and the core layers, the amount of heater material can also be varied. The heater material can surround the cladding layers, can be present on the sidewalls and top only, or the sidewalls alone, to provide sufficient heat to change the refractive index of the layers and thus the path of light passing through the device. These devices when built into the substrate can be connected to underlying devices and components formed on the same substrate for increased integration.
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8.发明公开
公开(公告)号：EP1324056A1
公开(公告)日：2003-07-02
申请号：EP02102723.0
申请日：2002-12-11
申请人： Thales
IPC分类号： G01R13/34 , H04B10/155 , G02F1/313
CPC分类号： G02F1/313 , G02F2203/54
摘要： La présente invention concerne un dispositif de génération d'impulsions, à fort taux d'extinction et son application à l'échantillonnage notamment de signaux hyperfréquence.
Ce dispositif comporte au moins une source optique et un commutateur électro-optique dont l'entrée est reliée à la sortie de la source. Il comporte également un générateur d'impulsions électriques dont la sortie est reliée à l'entrée de commande du commutateur.
Les impulsions à fort taux d'extinction sont délivrées en sortie du commutateur.
L'invention s'applique notamment à l'échantillonnage de signaux hyperfréquence.摘要翻译： 的高消光因数的脉冲发生器具有到光源（11）和电光学开关（12）与连接到源的输入上。 的电脉冲发生器（13）连接到开关控制，以传送到开关输出（14）的高消光因数的脉冲。
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公开(公告)号：EP0815490B1
公开(公告)日：2003-02-12
申请号：EP95936912.5
申请日：1995-11-24
发明人： WU, Chi
IPC分类号： G02F1/313
CPC分类号： G02F1/313 , H04Q11/0005 , H04Q2011/0013 , H04Q2011/0024 , H04Q2011/0052
摘要： An optical waveguide cross-point switch capable of full broadcast and strictly non-blocking operation. The device has a matrix of a plurality of input waveguides and a plurality of output waveguides (MxN). A reflecting surface associated with each intersection may be selectively activated to direct an optical signal on the input line to the associated output line. The reflecting surface may also be employed so as to convert an MxN matrix into a 2(MxN) rearrangeable cross-point switch. Each waveguide is capable of switching a data rate of 10 Gb/s or more. For example, with eight wavelength channels used to impart optical signals to a 16x16 switch a data rate of 1.28 Terabits/second is achievable.
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公开(公告)号：EP1200870A2
公开(公告)日：2002-05-02
申请号：EP00973353.6
申请日：2000-07-20
发明人： GHARAVI, Alireza
IPC分类号： G02F1/00
CPC分类号： G02B6/1221 , G02B6/12007 , G02B6/138 , G02B2006/12107 , G02F1/011 , G02F1/065 , G02F1/313 , G02F2201/307 , G02F2203/585 , H04J14/0212
摘要： The invention provides a multifunctional optical switch that among other things, optionally can function as an optical wavelength division multiplexer, wavelength division demultiplexer, add-drop multiplexer and/or inter-connect device. The invention further provides novel methods of manufacturing the optical switch. The optical switch can comprise a single layer, and optimally includes of a plurality of layers which each comprise an optical nonlinear second-order polymer. The optical nonlinear second-order polymer present in each layer differs from that present in any other layer in terms of its absorption maximum (i.e., due to possession of different chromophores).
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