公开(公告)号：US06568219B1

公开(公告)日：2003-05-27

申请号：US09629757

申请日：2000-07-31

申请人： Alastair Malcolm Glass ,  Benjamin Irvin Greene ,  Nonna Kopylov ,  Ahmet Refik Kortan

发明人： Alastair Malcolm Glass ,  Benjamin Irvin Greene ,  Nonna Kopylov ,  Ahmet Refik Kortan

IPC分类号： C03B37027

CPC分类号： C03C10/0072 ,  C03B32/02 ,  C03B37/01265 ,  G02F1/0027 ,  G02F1/0553

摘要： The specification describes ceram-glass compositions useful for electro-optic devices. The compositions have active ferroelectric ingredients in a tellurium oxide host. Proper processing of the ceram-glass produces highly transparent material with desirable ferroelectric properties. The ceram-glass materials can be used for electro-optic devices in both bulk and thin film applications.

摘要翻译： 该说明书描述了可用于电光器件的陶瓷玻璃组合物。 组合物在氧化碲主体中具有活性铁电成分。 陶瓷玻璃的正确加工产生具有所需铁电性能的高透明材料。 陶瓷玻璃材料可用于散装和薄膜应用中的电光器件。

公开(公告)号：US5768452A

公开(公告)日：1998-06-16

申请号：US633610

申请日：1996-04-17

申请人： Robert Michael Atkins ,  Benjamin Irvin Greene ,  Chellappan Narayanan ,  Herman Melvin Presby

发明人： Robert Michael Atkins ,  Benjamin Irvin Greene ,  Chellappan Narayanan ,  Herman Melvin Presby

IPC分类号： G02B6/12 ,  G02B6/125 ,  G02B6/13 ,  G02B6/26

CPC分类号： G02B6/125 ,  G02B6/13 ,  G02B2006/12147 ,  G02B2006/12169

摘要： A method is provided of trimming the optical coupling ratio of an optical coupler to a prescribed value. The optical coupler is formed from a plurality of waveguides which each include a core and cladding. In accordance with the method, an irradiation energy is selected that is absorbed by portions of the waveguides located in a coupling region. A dosage of radiation is applied to the waveguide portions at least sufficient to adjust the optical coupling ratio to the prescribed value. The radiation, which may be absorbed by the cladding and/or the core of the waveguides, causes a change in the refractive index difference between the core and cladding of the waveguides. This change in the refractive index difference will result in a change in the optical coupling ratio of the device.

摘要翻译： 提供了一种将光耦合器的光耦合比修剪到规定值的方法。 光耦合器由多个波导形成，每个波导包括芯和包层。 根据该方法，选择被位于耦合区域中的波导的部分吸收的照射能量。 对波导部分施加的辐射剂量至少足以将光耦合比调整到规定值。 可以由波导的包层和/或芯吸收的辐射导致波导的芯和包层之间的折射率差的变化。 折射率差的这种变化将导致器件的光耦合率的变化。

公开(公告)号：US5938811A

公开(公告)日：1999-08-17

申请号：US862557

申请日：1997-05-23

申请人： Benjamin Irvin Greene

发明人： Benjamin Irvin Greene

IPC分类号： G02B6/10 ,  G02B6/12 ,  G02B6/13 ,  G02B6/34 ,  C03B32/00

CPC分类号： G02B6/12011 ,  G02B6/10 ,  G02B6/12007 ,  G02B6/12028 ,  G02B6/13 ,  G02B6/29317 ,  G02B6/29398

摘要： In accordance with the invention glass waveguide devices are provided with enhanced temperature stability by incorporating within appropriate lengths of the waveguides a transparent compensating material having a refractive index variation with temperature that differs substantially from that of the waveguide. The compensating material can be a non-glass material, such as a liquid, driven into the glass by heat and pressure. In a preferred embodiment, D.sub.2 O is incorporated into waveguides for optical communications. The D.sub.2 O is transparent to the preferred communications wavelengths centered at about 1.55 .mu.m and has a dn/dT opposite in polarity to the dn/dT of glass. The resulting structure exhibits enhanced temperature stability with reduced magnitude of dn/dT. The technique is particularly useful in devices based on interference between multiple waveguides, as it is not necessary to reduce dn/dT to zero in the respective waveguides. It suffices to compensate the differences. Such compensation can be achieved by compensating materials having dn/dT of either the same polarity as the dn/dT of the waveguides or the opposite polarity. Preferred embodiments include routers, Fourier filters and Bragg filters. In single waveguide devices such as gratings, compensating materials of opposite polarity can substantially enhance the temperature stability.

摘要翻译： 根据本发明，玻璃波导器件通过在适当长度的波导中并入具有与波导的实质差异的折射率随温度变化的透明补偿材料而具有增强的温度稳定性。 补偿材料可以是非玻璃材料，例如通过热和压力驱入玻璃的液体。 在优选实施例中，D 2 O被并入用于光通信的波导中。 D2O对于以约1.55μm为中心的优选通信波长是透明的，并且具有与玻璃的dn / dT极性相反的dn / dT。 所得结构在dn / dT的降低幅度下表现出升高的温度稳定性。 该技术在基于多个波导之间的干扰的装置中特别有用，因为不必在相应波导中将dn / dT减小到零。 弥补差异就足够了 可以通过补偿具有与波导的dn / dT相同极性的dn / dT或相反极性的材料来实现这种补偿。 优选实施例包括路由器，傅里叶滤波器和布拉格滤波器。 在诸如光栅的单波导器件中，相反极性的补偿材料可以显着提高温度稳定性。