公开(公告)号：WO2002010810A3

公开(公告)日：2002-02-07

申请号：PCT/US2001/023692

申请日：2001-07-27

Applicant: GOODRICH CORPORATION ,  MINNESOTA MINING AND MANUFACTURING COMPANY

Inventor： ZHAO, Xiao-Mei ,  RAVIKIRAN, Ramakrishna ,  NEAL, Phillip, S. ,  SHICK, Robert, A. ,  WATSON, James, E. ,  KAFKA, Thomas, M. ,  CHUM, Davy ,  JOHNSTON, Raymond, P.

IPC: G02B6/12

Abstract: The invention provides a method for producing an optical waveguide that includes the steps of: (a) forming a core structure, the core structure including an at least partially cured core composition, on a master defining a waveguide pattern; (b) applying over the top of the core structure and the master a cladding layer including a liquid cladding composition; (c) curing the cladding layer to form a core/cladding combination; and removing the core/cladding combination from the master so as to expose at least a portion of the core structure, wherein the refractive index of the core material is at least about 0.05 percent higher than the refractive index of the cladding material. In another embodiment, the invention relates to a method for producing an optical waveguide core structure that includes the steps of: (a) applying a core composition to a substrate defining a waveguide core pattern; (b) removing a portion of the core composition from an exposed surface of the filled waveguide core pattern; and (c) at least partially curing the core composition to form a core structure. In another embodiment, the invention relates to a composition for forming either the core or cladding portion of an optical waveguide comprising at least one norbornene-type monomer and/or at least one crosslinking monomer and at least one co-catalyst or procatalyst, wherein polymerization is achieved by the addition of at least one procatalyst (when a co-catalyst is present in the composition) or at least one cocatalyst (when a pro-catalyst is present in the composition). Optical waveguides made by the methods of the invention are also disclosed.

公开(公告)号：WO1996029626A1

公开(公告)日：1996-09-26

申请号：PCT/US1996002087

申请日：1996-02-14

Applicant: MINNESOTA MINING AND MANUFACTURING COMPANY

Inventor： MINNESOTA MINING AND MANUFACTURING COMPANY ,  SMITH, Terry, L. ,  ATTANASIO, Daniel, V. ,  WATSON, James, E.

IPC: G02F01/313

CPC classification number: G02F1/3132 ,  G02F2203/06

Abstract: A polarization-independent electro-optically switched directional coupler (60) utilizing reverse differential propagation constant control comprises an electro-optic material having at least a pair of waveguide channels (62, 64) within an interaction region and at least a pair of electrodes (30, 31; 32, 33) for selectively producing an electric field across the waveguide channels which electro-optically alters an optical propagation constant of the waveguide channels so as to vary the effects of an optical coupling between the waveguide channels. The waveguide channels have a curvature region defined by a constant radius that is selected so as to coincide a set of operating voltages for an optical switch state of the directional coupler for a transverse magnetic (TM) polarization mode with a set of operating voltages for an optical switch state of the directional coupler for a transverse electric (TE) polarization mode by shifting the optical switch state of the TM polarization mode relative to the optical switch state of the TE polarization mode due to the relative difference between the magnitude of the electro-optic effect for the TM polarization mode light signal in the curvature region and magnitude of the electro-optic effect for the TE polarization mode light signal in the curvature region.

Abstract translation: 利用反向差分传播常数控制的偏振无关电光转换定向耦合器（60）包括在交互区域内具有至少一对波导通道（62,64）的电光材料和至少一对电极（ 30,31; 32,33），用于选择性地产生横跨波导通道的电场，其电光改变波导通道的光传播常数，以便改变波导通道之间的光耦合的影响。 波导通道具有由恒定半径限定的曲率区域，该曲率区域被选择为使得用于横向磁（TM）偏振模式的定向耦合器的光开关状态的一组工作电压与一组用于 通过相对于TE偏振模式的光开关状态移动TM偏振模式的光开关状态，由于电 - （TE）偏振模的幅度之间的相对差异，横向电（TE）偏振模式的定向耦合器的光开关状态 光学效应在TM偏振模光信号的曲率区域和电光效应的大小对于TE偏振模光信号在曲率区域。

公开(公告)号：WO1996029625A1

公开(公告)日：1996-09-26

申请号：PCT/US1996002084

申请日：1996-02-14

Applicant: MINNESOTA MINING AND MANUFACTURING COMPANY

Inventor： MINNESOTA MINING AND MANUFACTURING COMPANY ,  SMITH, Terry, L. ,  ATTANASIO, Daniel, V. ,  WATSON, James, E. ,  HARE, George, R.

IPC: G02F01/03

CPC classification number: G02F1/0123 ,  G02F1/3132 ,  G02F1/3136 ,  G02F1/3137

Abstract: A system for tuning an integrated optical switch element (100) utilizes a reflected portion (212) from a light signal (204) that is propagated into a first input port (106) defined on one side of an interaction region (110) of the optical switch element. The reflection occurs beyond an opposite side of the interaction region from the side on which the light signal is introduced. The reflected portion (212) is detected at a second input port (108) of the optical switch element (100) on the same side of the interaction region (110) as the side on which the light signals are introduced. The reflected portion (212) is used to tune the optical switch element (100) to a desired switch state by minimizing the reflection detected at the second input port (108). By minimizing the reflected portion (212) detected at the second input port (108) for a desired switch state, the strength of the optical signal (204) through the wave guide channels (206, 208) intended to be used to propagate the light signal in the desired switch state is maximized. As a result, the switching extinction ratio for the optical switch element (100) in the desired switch state is optimized. The system can be used to selectively tune a single optical switch element, or can be used to selectively tune multiple integrated optical switch elements that form an optical switch matrix on a common substrate, for example.

Abstract translation: 用于调谐集成光开关元件（100）的系统利用来自光信号（204）的反射部分（212），所述光信号被传播到限定在所述第一输入端口（110）的相互作用区域（110）的一侧上的第一输入端口 光开关元件。 反射发生在与从其引入光信号的一侧的相互作用区域的相反侧。 反射部分（212）在光开关元件（100）的与引入光信号的一侧的相互作用区域（110）的同一侧的第二输入端口（108）处被检测。 反射部分（212）用于通过使在第二输入端口（108）处检测到的反射最小化来将光学开关元件（100）调谐到期望的开关状态。 通过使在第二输入端口（108）检测到的反射部分（212）最小化所需的开关状态，通过用于传播光的波导通道（206,208）的光信号（204）的强度 期望开关状态下的信号最大化。 结果，优化了在所需开关状态下的光开关元件（100）的切换消光比。 该系统可以用于选择性地调谐单个光学开关元件，或者可以用于例如选择性地调谐在公共基板上形成光学开关矩阵的多个集成光学开关元件。