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公开(公告)号：US06961166B2
公开(公告)日：2005-11-01
申请号：US10852704
申请日：2004-05-24
申请人： Ed Wooten , Karl Kissa , Gregory J. McBrien , Timothy C. Munks , Andrew Finch
发明人： Ed Wooten , Karl Kissa , Gregory J. McBrien , Timothy C. Munks , Andrew Finch
CPC分类号： G02F1/225 , G02F2201/16 , G02F2203/02
摘要： An optical digital external modulator having a cascaded arrangement of interferometers is provided. The optical modulator includes an electrode structure for applying an electric field to each interferometer in the cascade and biasing circuitry coupled to the electrode structure for biasing each interferometer at a predetermined bias point. In particular, each predetermined bias point is selected to be above quadrature and for providing improved transmission performance of digital data signals. Preferably, the modulator has a reflective design that helps to increase the modulation bandwidth, lower the drive voltage, and reduce size.
摘要翻译： 提供具有级联的干涉仪布置的光学数字外部调制器。 光学调制器包括用于对级联中的每个干涉仪施加电场的电极结构和耦合到电极结构的偏置电路，用于以预定的偏压点偏置每个干涉仪。 特别地，每个预定偏置点被选择为高于正交并且用于提供数字数据信号的改进的传输性能。 优选地，调制器具有有助于增加调制带宽，降低驱动电压和减小尺寸的反射设计。
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公开(公告)号：US07212326B2
公开(公告)日：2007-05-01
申请号：US11223553
申请日：2005-09-09
申请人： Ed Wooten , Karl Kissa , Gregory J. McBrien , Timothy C. Munks , Andrew Finch
发明人： Ed Wooten , Karl Kissa , Gregory J. McBrien , Timothy C. Munks , Andrew Finch
CPC分类号： G02F1/225 , G02F2201/16
摘要： An optical external modulator includes an optical waveguide having a first interferometer section and a second interferometer section formed on an electro-optic substrate. An electrode structure disposed on the substrate transmits an RF drive signal that is applied to the first and second interferometer sections in series. A reflector optically coupled to the substrate redirects light away from the first interferometer section to the second interferometer section and provides an optical fold region that introduces an optical time delay between the first and second interferometer sections. The optical time delay is used for at least partially compensating for a velocity mismatch between the light and the RF drive signal.
摘要翻译： 光学外部调制器包括具有形成在电光基板上的第一干涉仪部分和第二干涉仪部分的光波导。 设置在基板上的电极结构传送串联施加到第一和第二干涉仪部分的RF驱动信号。 光耦合到衬底的反射器将光从第一干涉仪部分重新导向第二干涉仪部分，并提供在第一和第二干涉仪部分之间引入光学时间延迟的光学折叠区域。 光学时间延迟用于至少部分地补偿光和RF驱动信号之间的速度失配。
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公开(公告)号：US20060056002A1
公开(公告)日：2006-03-16
申请号：US11223553
申请日：2005-09-09
申请人： Ed Wooten , Karl Kissa , Gregory McBrien , Timothy Munks , Andrew Finch
发明人： Ed Wooten , Karl Kissa , Gregory McBrien , Timothy Munks , Andrew Finch
IPC分类号： G02F1/03
CPC分类号： G02F1/225 , G02F2201/16
摘要： An optical external modulator includes an optical waveguide having a first interferometer section and a second interferometer section formed on an electro-optic substrate. An electrode structure disposed on the substrate transmits an RF drive signal that is applied to the first and second interferometer sections in series. A reflector optically coupled to the substrate redirects light away from the first interferometer section to the second interferometer section and provides an optical fold region that introduces an optical time delay between the first and second interferometer sections. The optical time delay is used for at least partially compensating for a velocity mismatch between the light and the RF drive signal.
摘要翻译： 光学外部调制器包括具有形成在电光基板上的第一干涉仪部分和第二干涉仪部分的光波导。 设置在基板上的电极结构传送串联施加到第一和第二干涉仪部分的RF驱动信号。 光耦合到衬底的反射器将光从第一干涉仪部分重新导向第二干涉仪部分，并提供在第一和第二干涉仪部分之间引入光学时间延迟的光学折叠区域。 光学时间延迟用于至少部分地补偿光和RF驱动信号之间的速度失配。
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公开(公告)号：US06449080B1
公开(公告)日：2002-09-10
申请号：US09520874
申请日：2000-03-08
IPC分类号： G02F103
CPC分类号： G02F1/2255 , G02F2203/21
摘要： A co-planar waveguide interferometric electro-optic modulator that reduces the bias point sensitivity of the modulator to ambient temperature and to applied RF is described. The modulator includes a first and second waveguide that are formed in an electro-optic substrate. A RF electrode is positioned on the electro-optic substrate between the first and the second waveguide. A ground electrode that may include a slot is positioned proximate to the second waveguide. A guard ground electrode is positioned proximate to the first waveguide to sink heat from the RF electrode and may also balance the thermal stress in the two waveguides. A dielectric material may also be positioned proximate to the first waveguide to balance the thermal stress in the two waveguides.
摘要翻译： 描述了将调制器的偏置点灵敏度降低到环境温度和施加的RF的共平面波导干涉电光调制器。 调制器包括形成在电光基板中的第一和第二波导。 RF电极位于第一和第二波导之间的电光基板上。 可以包括槽的接地电极定位成靠近第二波导。 保护接地电极定位成靠近第一波导以吸收来自RF电极的热量，并且还可以平衡两个波导中的热应力。 绝缘材料也可以被定位成靠近第一波导以平衡两个波导中的热应力。
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公开(公告)号：US06483953B1
公开(公告)日：2002-11-19
申请号：US09309444
申请日：1999-05-11
申请人： Gregory J. McBrien , Karl M. Kissa , Ed Wooten
发明人： Gregory J. McBrien , Karl M. Kissa , Ed Wooten
IPC分类号： G02F1035
CPC分类号： G02F1/2255 , G02F1/0356
摘要： An electro-optic device including an optical waveguide formed in an electro-optic material that propagates an optical signal along a first direction of propagation is described. The device also includes an electrical waveguide formed in the electro-optic material and positioned co-linear relative to the optical waveguide and in electromagnetic communication with the optical waveguide, where the electrical waveguide also propagates the electrical signal in the first direction of propagation. A compensation network is electrically coupled to the electrical waveguide at a junction and propagates the electrical signal in a second direction of propagation that is substantially non-co-linear with the first direction of propagation. In operation, the compensation network modifies at least one of a phase or an amplitude of the electrical signal at the junction relative to a phase or an amplitude of the accumulated modulation on the optical signal at the junction, respectively, and then returns the modified electrical signal to the electrical waveguide.
摘要翻译： 描述了一种电光装置，其包括形成在沿着第一传播方向传播光信号的电光材料中的光波导。 该装置还包括形成在电光材料中的电波导，并且相对于光波导线定位并且与光波导电磁通信，其中电波导还在第一传播方向上传播电信号。 补偿网络在结处电耦合到电波导，并且在与第一传播方向基本上非共线性的第二传播方向上传播电信号。 在操作中，补偿网络分别相对于接合处的光信号上的累积调制的相位或幅度分别修改了接点处的电信号的相位或幅度中的至少一个，然后返回修改的电 信号到电波导。
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