公开(公告)号：US20060018597A1

公开(公告)日：2006-01-26

申请号：US11187725

申请日：2005-07-22

申请人： David Piede ,  Prakash Gothoskar ,  Harvey Wagner ,  Margaret Ghiron

发明人： David Piede ,  Prakash Gothoskar ,  Harvey Wagner ,  Margaret Ghiron

IPC分类号： G02B6/26

CPC分类号： G02B6/2852 ,  G02F1/2955 ,  G02F2001/0144 ,  G02F2201/302

摘要： A tunable optical coupling arrangement for use with a relatively thin (generally sub-micron thickness) silicon waveguiding layer of a silicon-on-insulator (SOI) substrate. The arrangement comprises a multi-layer structure including a substrate for supporting one or more diffractive optical elements and a layer of tunable liquid crystal material. The multi-layer structure is disposed over a conventional SOI substrate including the thin silicon waveguiding layer, where the refractive index of the liquid crystal material can be modified to adjust the deflection of an input optical beam through the various diffractive optical elements and present an optimized launch angle into the silicon waveguiding layer, thus reducing insertion loss at the waveguiding layer.

摘要翻译： 一种可调光耦合装置，用于与绝缘体上硅（SOI）衬底的较薄（通常为亚微米厚度）的硅波导层一起使用。 该装置包括多层结构，其包括用于支撑一个或多个衍射光学元件的基板和可调谐液晶材料层。 多层结构设置在包括薄硅波导层的常规SOI衬底上，其中可以修改液晶材料的折射率以调节通过各种衍射光学元件的输入光束的偏转，并且呈现优化的 发射角进入硅波导层，从而减小波导层的插入损耗。

公开(公告)号：US20050123232A1

公开(公告)日：2005-06-09

申请号：US11005286

申请日：2004-12-06

申请人： David Piede ,  Margaret Ghiron ,  Prakash Gothoskar ,  Robert Montgomery ,  Vipulkumar Patel ,  Kalpendu Shastri ,  Soham Pathak ,  Katherine Yanushefski ,  Harvey Wagner

发明人： David Piede ,  Margaret Ghiron ,  Prakash Gothoskar ,  Robert Montgomery ,  Vipulkumar Patel ,  Kalpendu Shastri ,  Soham Pathak ,  Katherine Yanushefski ,  Harvey Wagner

IPC分类号： G02B20060101 ,  G02B6/122 ,  G02B6/125 ,  G02B6/26 ,  G02B6/42

CPC分类号： G02B6/1228 ,  G02B6/125 ,  G02B6/4207

摘要： A planar optical isolator is formed within the silicon surface layer of an SOI structure. A forward-directed signal is applied to an input waveguiding section of the isolator and thereafter propagates through a non-reciprocal waveguide coupling region into an output waveguide section. A rearward-directed signal enters via the output waveguide section and is thereafter coupled into the non-reciprocal waveguide structure, where the geometry of the structure functions to couple only a small amount of the reflected signal into the input waveguide section. In one embodiment, the non-reciprocal structure comprises an N-way directional coupler (with one output waveguide, one input waveguide and N-1 isolating waveguides). In another embodiment, the non-reciprocal structure comprises a waveguide expansion region including a tapered, mode-matching portion coupled to the output waveguide and an enlarged, non-mode matching portion coupled to the input waveguide such that a majority of a reflected signal will be mismatched with respect to the input waveguide section. By cascading a number of such planar SOI-based structures, increased isolation can be achieved—advantageously within a monolithic arrangement.

摘要翻译： 在SOI结构的硅表面层内形成平面光隔离器。 正向信号被施加到隔离器的输入波导部分，然后通过非互易波导耦合区域传播到输出波导部分中。 后向信号经由输出波导部分进入，然后耦合到不可逆波导结构中，其中结构的几何结构仅将少量的反射信号耦合到输入波导部分中。 在一个实施例中，非互易结构包括N路定向耦合器（具有一个输出波导，一个输入波导和N-1个隔离波导）。 在另一个实施例中，不可逆结构包括波导扩展区域，其包括耦合到输出波导的锥形模式匹配部分和耦合到输入波导的放大的非模式匹配部分，使得反射信号的大部分将 相对于输入波导部分不匹配。 通过级联多个这种平面的基于SOI的结构，可以实现增加的隔离 - 有利地在单片布置中。

公开(公告)号：US07113676B2

公开(公告)日：2006-09-26

申请号：US11005286

申请日：2004-12-06

申请人： David Piede ,  Margaret Ghiron ,  Prakash Gothoskar ,  Robert Keith Montgomery ,  Vipulkumar Patel ,  Kalpendu Shastri ,  Soham Pathak ,  Katherine A. Yanushefski ,  Harvey Wagner

发明人： David Piede ,  Margaret Ghiron ,  Prakash Gothoskar ,  Robert Keith Montgomery ,  Vipulkumar Patel ,  Kalpendu Shastri ,  Soham Pathak ,  Katherine A. Yanushefski ,  Harvey Wagner

IPC分类号： G02B6/26 ,  G02B6/42

CPC分类号： G02B6/1228 ,  G02B6/125 ,  G02B6/4207

摘要： A planar optical isolator is formed within the silicon surface layer of an SOI structure. A forward-directed signal is applied to an input waveguiding section of the isolator and thereafter propagates through a non-reciprocal waveguide coupling region into an output waveguide section. A rearward-directed signal enters via the output waveguide section and is thereafter coupled into the non-reciprocal waveguide structure, where the geometry of the structure functions to couple only a small amount of the reflected signal into the input waveguide section. In one embodiment, the non-reciprocal structure comprises an N-way directional coupler (with one output waveguide, one input waveguide and N−1 isolating waveguides). In another embodiment, the non-reciprocal structure comprises a waveguide expansion region including a tapered, mode-matching portion coupled to the output waveguide and an enlarged, non-mode matching portion coupled to the input waveguide such that a majority of a reflected signal will be mismatched with respect to the input waveguide section. By cascading a number of such planar SOI-based structures, increased isolation can be achieved—advantageously within a monolithic arrangement.

摘要翻译： 在SOI结构的硅表面层内形成平面光隔离器。 正向信号被施加到隔离器的输入波导部分，然后通过非互易波导耦合区域传播到输出波导部分中。 后向信号经由输出波导部分进入，然后耦合到不可逆波导结构中，其中结构的几何结构仅将少量的反射信号耦合到输入波导部分中。 在一个实施例中，非互易结构包括N路定向耦合器（具有一个输出波导，一个输入波导和N-1个隔离波导）。 在另一个实施例中，不可逆结构包括波导扩展区域，其包括耦合到输出波导的锥形模式匹配部分和耦合到输入波导的放大的非模式匹配部分，使得反射信号的大部分将 相对于输入波导部分不匹配。 通过级联多个这种平面的基于SOI的结构，可以实现增加的隔离 - 有利地在单片布置中。

公开(公告)号：US20060126993A1

公开(公告)日：2006-06-15

申请号：US11287114

申请日：2005-11-25

申请人： David Piede ,  Bipin Dama ,  Kalpendu Shastri ,  John Fangman ,  Harvey Wagner ,  Margaret Ghiron

发明人： David Piede ,  Bipin Dama ,  Kalpendu Shastri ,  John Fangman ,  Harvey Wagner ,  Margaret Ghiron

IPC分类号： G02B6/12

CPC分类号： H04B10/801 ,  G02B6/43

摘要： An SOI-based optical interconnection arrangement is provided that significantly reduces the size, complexity and power consumption requires of conventional high density electrical interconnections. In particular, a group of optical modulators and wavelength division multiplexers/demultiplexers are used in association with traditional electrical signal paths to “concentrate” a large number of the electrical-pinouts onto one optical waveguide (e.g., fiber). By utilizing a number of such SOI-based signal concentration structures, an optical backplane can be formed that couples all of these concentration structures through one optical substrate and then onto a separate number of output/receiving boards. Additionally, optical gain material may be embedded within the backplane element to further enhance the optical signal quality. The ability to integrate the electrical and optical components within a monolithic SOI-based structure provides for the significant reduction in the overall size of the connection arrangement and, further, reduces the power consumption by about an order of magnitude.

摘要翻译： 提供了一种基于SOI的光互连装置，其显着地减小了常规高密度电互连所需的尺寸，复杂性和功耗。 特别地，一组光调制器和波分复用器/解复用器与传统的电信号路径相关联地使用，以将大量的电插座“集中”到一个光波导（例如，光纤）上。 通过利用多个这样的基于SOI的信号浓度结构，可以形成光背板，其通过一个光学基板将所有这些浓度结构耦合到另一数目的输出/接收板上。 此外，光增益材料可以嵌入在背板元件内以进一步增强光信号质量。 将电和光学部件集成在基于单片SOI的结构内的能力提供了连接装置的整体尺寸的显着降低，并且进一步将功耗降低约一个数量级。