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71. 发明公开

EP1058136A1 Planar silica optical waveguide with grooves 审中-公开
标题翻译： Planiser optischer Siliziumdioxid-Wellenleiter mit Nuten
公开(公告)号：EP1058136A1
公开(公告)日：2000-12-06
申请号：EP99303962.7
申请日：1999-05-21
申请人： BRITISH TELECOMMUNICATIONS public limited company
发明人： The designation of the inventor has not yet been filed
IPC分类号： G02B6/12
CPC分类号： G02B6/12011 , G02B6/125 , G02B6/13 , G02B6/132 , G02B6/136 , G02B2006/12145 , G02B2006/12159 , G02F1/0147 , G02F1/225 , G02F2001/0113
摘要： A planar optical waveguiding device comprises a core (10) located between empty grooves which extend both above and below the core (10). Preferably the core (10) has a bend with a radius of curvature of less than 2mm and the empty grooves (11 and 12) are located inside and outside the bend with interfaces (15,16) with the core (10). Since the grooves (11,12) are prepared by etching they will normally extend to the surface of the device but it is necessary to continue the etching below the bottom of the core (10) in order to achieve satisfactory guidance. The grooves are "empty" in that no material is deliberately placed therein but they usually contain whatever atmosphere is present where the device is used. In most cases, the atmosphere will be air but, in space, there would be a vacuum. The refractive index in the groove is substantially equal to 1 because this is the refractive index of a vacuum and virtually all gasses. The use of "empty" grooves permit tighter bends with permissible losses so that more devices, e.g. arrayed waveguide grating devices, can be produced on a wafer of a given size.
摘要翻译：平面光波导装置包括位于在芯（10）上方和下方延伸的空槽之间的芯（10）。优选地，芯（10）具有曲率半径小于2mm的弯曲部，并且空槽（11和12）位于具有与芯（10）的界面（15,16）的弯曲部的内部和外部。由于凹槽（11,12）通过蚀刻制备，它们通常将延伸到器件的表面，而是需要继续在芯（10）的底部下方蚀刻，以便获得令人满意的指导。凹槽是“空的”，因为没有材料被有意地放置在其中，但它们通常包含使用该装置的任何气氛。在大多数情况下，气氛将是空气，但在太空中会有真空。凹槽中的折射率基本上等于1，因为这是真空的折射率和几乎所有的气体。使用“空”槽允许更严格的弯曲具有允许的损耗，使得更多的装置，例如。阵列波导光栅器件可以在给定尺寸的晶片上产生。

72. 发明公开

EP1041424A2 Integrated optical Mach Zehnder structures 审中-公开
标题翻译： Integriert-optische Mach-Zehnder Strukturen
公开(公告)号：EP1041424A2
公开(公告)日：2000-10-04
申请号：EP00301124.4
申请日：2000-02-14
申请人： Nortel Networks Limited
发明人： Thompson, George Horace Brook
IPC分类号： G02F1/01 , G02F1/313
CPC分类号： G02F1/225 , G02F1/0147 , G02F1/025 , G02F1/3136
摘要： An integrated optical Mach Zehnder structure has an optical path length modifying heater (phase-shifter) (23) associated with a portion of the length of each interference am, (15,16) of the Mach Zehnder. The portion of the length of the interference arm associated with one of the heaters is flanked with trenches (27) that provide that portion with a temperature coefficient of birefringence different from that of the corresponding portion of the other interference arm. The invention is applicable not only to stand-alone Mach Zehnders, but also to more complex Mach Zehnder structures having a series combination of two or more component Mach Zehnders that are close coupled by having the two outputs of one component Mach Zehnder of the complex structure constitute the two inputs of the next component Mach Zehnder of the complex structure.
摘要翻译：集成的光学马赫曾德结构具有与Mach Zehnder的每个干涉距离（15,16）的长度的一部分相关联的光路长度修改加热器（移相器）（23）。与其中一个加热器相关联的干涉臂的长度部分的两侧设有沟槽（27），沟槽（27）使该部分的双折射温度系数与其它干涉臂的对应部分的温度系数不同。本发明不仅适用于独立的Mach Zehnders，而且还适用于具有两个或更多组件Mach Zehnders的串联组合的更复杂的Mach Zehnder结构，其通过具有复合结构的单组分Mach Zehnder的两个输出而紧密耦合构成复合结构的下一个组成部分Mach Zehnder的两个输入。

73. 发明公开

EP0965065A1 OPTICAL DEVICE 失效
标题翻译：光学器件
公开(公告)号：EP0965065A1
公开(公告)日：1999-12-22
申请号：EP98901628.0
申请日：1998-01-16
申请人： TELEFONAKTIEBOLAGET LM ERICSSON
发明人： AUGUSTSSON, Torsten , WEBER, Jean-Pierre
IPC分类号： G02F1 , H04B10 , H04Q3 , G02B6
CPC分类号： G02F1/225 , G02B6/2813 , G02B2006/12107 , G02B2006/12145 , G02B2006/12159 , G02B2006/12164 , G02F1/3136 , G02F2001/217 , G02F2201/307 , G02F2203/055
摘要： The present invention relates to a wavelength selective switch. Said switch comprises at least one MMI waveguide, at least one Mach Zehnder waveguide, at least one phase control element and at least one Bragg grating, where said Mach Zehnder waveguide comprises said phase control element and said Bragg grating and is arranged in connection to at least one MMI waveguide. The invention further comprises a method for switching wavelength channels by using the above mentioned wavelength selective switch.
摘要翻译：波长选择开关本发明涉及一种波长选择开关。所述开关包括至少一个MMI波导，至少一个Mach Zehnder波导，至少一个相位控制元件和至少一个布拉格光栅，其中所述马赫曾德波导包括所述相位控制元件和所述布拉格光栅，并且被布置为与至少一个MMI波导。本发明还包括一种通过使用上述波长选择开关来切换波长信道的方法。

74. 发明公开

EP0926532A3 Electrically controllable optical attenuator 审中-公开
标题翻译：电控光学衰减器
公开(公告)号：EP0926532A3
公开(公告)日：1999-07-07
申请号：EP98309206.5
申请日：1998-11-10
申请人： NORTHERN TELECOM LIMITED
发明人： Day, Stephen , Clapp, Terry Victor
IPC分类号： G02F1/03
CPC分类号： G02F1/225 , G02F2201/16 , G02F2203/04 , G02F2203/48
摘要： A known form of electrically controlled optical attenuator is formed by a Mach Zehnder waveguide configuration with a variable refractive index element in one arm to modify the undulatory spectral characteristic of the network to give a specific attenuation at a specific wavelength. The spectral characteristic of the network makes the attenuation that it provides wavelength dependent. An attenuator with a wavelength dependence of reduced magnitude is provided by the series combination of two Mach Zehnder networks (30a, 30b), one (30a) having an electrically controllable optical path length adjuster (37a) in its longer interference arm (34a), and the other (30b) with its adjuster (37b) in its shorter arm (35b).
摘要翻译：已知形式的电控光学衰减器由马赫曾德尔波导配置形成，在一个臂中具有可变折射率元件，以修改网络的波动光谱特性以在特定波长处给出特定的衰减。网络的光谱特性使其产生与波长相关的衰减。具有减小的波长依赖性的衰减器由两个马赫曾德尔网络（30a，30b）的串联组合提供，一个（30a）在其较长的干涉臂（34a）中具有可电控制的光程长度调节器（37a）和另一个（30b）与其调节器（37b）在其较短臂（35b）中。

75. 发明公开

EP0848835A1 TECHNIQUE FOR FABRICATION OF A POLED ELECTRO-OPTIC FIBER SEGMENT 失效
标题翻译：一种有极光电光纤部分的制造技术
公开(公告)号：EP0848835A1
公开(公告)日：1998-06-24
申请号：EP96933748.0
申请日：1996-09-03
申请人： University of New Mexico
发明人： BRUECK, Steven, R., J. , LONG, Xiang-Cun
IPC分类号： G02B6 , G02F1
CPC分类号： G02F1/3558 , G02B6/02 , G02B6/02076 , G02B6/245 , G02B6/2843 , G02F1/065 , G02F1/225
摘要： A low-cost fabrication technique, readily extensible to volume manufacturing is presented for an electro-optically active fiber segment (31) that can be simply integrated into optoelectronic devices. The fabrication technique offers a dielectric isolation structure (16, 17) surrounding the fiber (10) to allow high field poling, a pair of electrodes (37, 38) used both for poling and for inducing an electro-optic effect, and ends of the fiber (18, 19) unaffected by the fabrication and available for splicing with additional fiber sections. The technique is readily adaptable to specialized electrode structures including striplines and/or microstrip lines for high frequency applications and segmented electrodes (52) for quasi-phasematched three-wave mixing applications. By combining the electro-optically active fiber segment (31) with other fibers in an integrated fiber modulator, high frequency modulation of an optical signal may be achieved with applications in telecommunications. By including a Bragg grating structure (53, 54) in the same fiber segment, a remotely accessible electric field sensor is achieved. Three-wave mixing processes in the electro-optically active fiber segment (31) will allow the generation of additional coherent radiation sources in both the visible/UV and infrared spectral ranges.
摘要翻译：提出了一种可以容易地扩展到批量制造的低成本制造技术，用于可以简单地集成到光电子器件中的电光有源光纤段（31）。制造技术提供围绕光纤（10）以允许高场极化的介电隔离结构（16,17），用于极化和诱导电光效应的一对电极（37,38），以及光纤（18,19）不受制造影响并且可用于与附加光纤段拼接。该技术容易适用于专用电极结构，包括用于高频应用的带状线和/或微带线以及用于准相位匹配三波混频应用的分段电极（52）。通过将电光有源光纤段（31）与集成光纤调制器中的其他光纤组合，可以在电信应用中实现光信号的高频调制。通过在同一光纤段中包括布拉格光栅结构（53,54），实现了可远程访问的电场传感器。电光有源光纤段（31）中的三波混频过程将允许在可见/紫外和红外光谱范围内产生额外的相干辐射源。

76. 发明公开

EP0792469A1 INTEGRATED OPTICAL CIRCUIT COMPRISING A POLARIZATION CONVERTOR 失效
标题翻译：在偏振转换器含集成光路
公开(公告)号：EP0792469A1
公开(公告)日：1997-09-03
申请号：EP96927847.0
申请日：1996-09-11
申请人： PHILIPS ELECTRONICS N.V. , PHILIPS NORDEN AB
发明人： VAN DAM, Cornelis , HEIDRICH, Helmut , HAMACHER, Karl, Michael , STEENBERGEN, Cornelis, Adrianus, Marinus , SMIT, Meint, Koert , WEINERT, Carl, Michael
IPC分类号： G02B6 , G02F1 , H01S3
CPC分类号： G02B6/12011 , G02B6/12023 , G02B6/126 , G02F1/225 , G02F2203/06
摘要： An integrated optical circuit comprises a first device and a second device, which devices are connected by a polarization convertor. The polarization convertor comprises a curved section of a waveguide, integrated in the optical circuit. The curved section may comprise several differently curved subsections. The conversion ratio is determined in part by the radius of curvature of the curved subsections as well as by the number of transitions between subsections.

77. 发明公开

EP0704742A3 Optical control device and method for making the same 失效
标题翻译： Optische Steuervorrichtung und Verfahren zu ihrer Herstellung
公开(公告)号：EP0704742A3
公开(公告)日：1997-07-23
申请号：EP95306831.9
申请日：1995-09-27
申请人： NEC CORPORATION
发明人： Nishimoto, Hiroshi , Kambe, Toshiyuki
IPC分类号： G02F1/035
CPC分类号： G02F1/035 , G02F1/225 , G02F1/3132 , G02F1/3136 , G02F1/3137 , G02F2201/07 , G02F2203/21
摘要： Disclosed is an optical control device which has a LiNbO3 or LiTaO3 crystalline substrate having electrooptic effect; a channel-type optical waveguide which is formed in the crystalline substrate by doping metal; an optically transparent film layer formed on the crystalline substrate; and electrodes formed on the optically transparent film layer; wherein the crystalline substrate has a surface except a region where waveguided-light through the channel-type optical waveguide propagates or an entire surface under which a layer doped by metal is formed.
摘要翻译：公开了具有具有电光效应的LiNbO 3或LiTaO 3晶体基板的光学控制装置; 通过掺杂金属在晶体衬底中形成的沟道型光波导; 形成在所述结晶基板上的光学透明膜层; 和形成在光学透明膜层上的电极; 其中所述晶体衬底具有除了通过所述沟道型光波导传播的波导光的区域或者形成由金属掺杂的层的整个表面之外的表面。

78. 发明授权

EP0547779B1 Soliton generator 失效
标题翻译：孤子发电机
公开(公告)号：EP0547779B1
公开(公告)日：1997-04-09
申请号：EP92310600.9
申请日：1992-11-20
申请人： AT&T Corp.
发明人： Korotky, Steven K.
IPC分类号： G02F1/03 , G02F1/225 , H04B10/18
CPC分类号： H04B10/25077 , G02F1/0327 , G02F1/225

79. 发明公开

EP0702253A3 Frequency routing device having a wide and substantially flat passband 失效
标题翻译：常见问题
公开(公告)号：EP0702253A3
公开(公告)日：1996-07-03
申请号：EP95305686.8
申请日：1995-08-15
申请人： AT&T Corp.
发明人： Dragone, Corrado
IPC分类号： G02B6/34
CPC分类号： G02B6/12021 , G02B6/29301 , G02B6/29352 , G02F1/0147 , G02F1/225 , H04Q11/0003 , H04Q2011/0015 , H04Q2011/0022 , H04Q2011/0045 , H04Q2011/0049
摘要： An optical apparatus is provided that includes a first arrayed waveguide or Mach-Zehnder frequency routing device (10) having at least one input port (2) and P output ports, where P ≥ 2. A second frequency routing device (12) is also provided that has P input ports and at least one output port (4). P optical paths (14₁,14₂,...14 p ) couple the input port of the first frequency routing device to the output port of the second frequency routing device. To obtain a wide and flat passband the two frequency routers are combined in a way to compensate the respective wavelength shifts for each optical path. The transmission coefficients for the optical paths (14); between the routers equal to unity at distinct optical wavelengths and equal to half unity halfway between these distinct wavelengths.
摘要翻译：提供了一种光学装置，其包括具有至少一个输入端口（2）和P个输出端口（P≥2）的第一阵列波导或马赫 - 曾德尔频率路由设备（10）。第二频率路由设备（12）也是只要具有P个输入端口和至少一个输出端口（4）。 P路径（141,142，... 14p）将第一频率路由设备的输入端口耦合到第二频率路由设备的输出端口。为了获得宽而平坦的通带，将两个频率路由器组合以补偿每个光路的相应波长移位。光路（14）的透射系数; 在路由器之间等于在不同光波长下的单位，并且等于这些不同波长之间的一半。

80. 发明公开

EP0646832A3 Process tolerant reverse delta-beta directional coupler 失效
标题翻译：具有交替增量β和仅轻微依赖于制造工艺特性的定向耦合器。
公开(公告)号：EP0646832A3
公开(公告)日：1995-12-27
申请号：EP94306939.3
申请日：1994-09-21
申请人： AT&T Corp.
发明人： Murphy, Edmond J.
IPC分类号： G02F1/313 , G02F1/225
CPC分类号： G02F1/3132 , G02F1/225 , G02F2201/125
摘要： A three or more section reverse Δβ directional coupler (10) designed to operate at a number of coupling lengths (L/ℓ) selected from a region of a corresponding switching diagram where the cross and bar state switching curves are approximately parallel to each other and to the vertical axis, the vertical axis defining numbers of coupling lengths, or from a region of corresponding process sensitivity plots for the cross and bar states where the cross and bar state voltage curves are both approximately of zero slope. A number of these directional couplers form an optical switching array and a number of arrays form a system or network for switching optical signals each of which are capable of operation with uniform cross and bar state voltages at low crosstalk levels.

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