公开(公告)号：US5555326A

公开(公告)日：1996-09-10

申请号：US358906

申请日：1994-12-19

申请人： Wol-Yon Hwang ,  Jang-Joo Kim ,  Tae-Hyoung Zyung ,  Min-Chul Oh

发明人： Wol-Yon Hwang ,  Jang-Joo Kim ,  Tae-Hyoung Zyung ,  Min-Chul Oh

IPC分类号： G02B6/35 ,  G02B6/12 ,  G02F1/065 ,  G02B6/27

CPC分类号： G02F1/065 ,  G02B2006/12116

摘要： An optical waveguide intensity modulator of a polymer waveguide utilizes and electro-optic effect and optical birefringence induced from a poling process of a nonlinear polymer thin-film. The optical waveguide intensity modulator is constructed by a series combination of a TE/TM mode selector, a TE or TM mode converter and another TE or TM mode selector. In the polymer waveguide, the mode selectors and mode converter can be easily obtained by making the direction of a poling field to be horizontal (or vertical) and approximately 45.degree. direction. According to the present invention, the optical waveguide intensity modulator is formed by integrating the TE or TM mode selectors and the TE or TM mode converter onto a single substrate. Further, because no element, is required which results in optical loses for example an optical isolator, an optical coupler or a curved portion of the waveguide, the efficiency of the device can be improved.

摘要翻译： 聚合物波导的光波导强度调制器利用由非线性聚合物薄膜的极化过程引起的电光效应和光学双折射。 光波导强度调制器由TE / TM模式选择器，TE或TM模式转换器和另一个TE或TM模式选择器的串联组合构成。 在聚合物波导中，通过使极化场的方向为水平（或垂直）和大约45度的方向，可以容易地获得模式选择器和模式转换器。 根据本发明，通过将TE或TM模式选择器和TE或TM模式转换器集成到单个衬底上来形成光波导强度调制器。 此外，由于不需要导致例如光隔离器，光耦合器或波导的弯曲部分的光损失的元件，因此可以提高器件的效率。

公开(公告)号：US5513283A

公开(公告)日：1996-04-30

申请号：US354167

申请日：1994-12-08

申请人： Wol-Yon Whang ,  Jang-Joo Kim ,  Tae-Hyoung Zyung ,  Min-Chul Oh

发明人： Wol-Yon Whang ,  Jang-Joo Kim ,  Tae-Hyoung Zyung ,  Min-Chul Oh

IPC分类号： G02F1/01 ,  G02B6/14 ,  G02F1/065 ,  G02F1/295

CPC分类号： G02F1/065 ,  G02F2001/0142

摘要： A TE-TM mode converter of a polymer electro-optic polarization waveguide type uses the electro-optic birefringence and the electro-optic effect as a non-linear optical waveguide medium, in which an optical director formed during the poling of a polymer thin film is determined by the direction of the poling electrical field. The poling electrode design enables the optical director having the angle of 45.degree. to the electrical direction of the TE and TM modes to be formed in the polymer thin film. When the waveguide receives the incident light of the TE mode or TM mode, the TE (or TM) mode is switched into the TM (or TE) mode by an effective refraction factor between the optical director and the director perpendicular thereto. If a length of the poling electrode and the birefringence of the waveguide is adjusted, the changes of various electo-optic polarization states are possible. The poled thin film has an electro-optic effect. If a voltage is applied to the thin film, the size of the birefringence derived by the poling is changeable. The use of the electro-optic effect enables the outputting state of the waveguide to be maintained at the TE or TM mode by a bias electrode, and if the switching voltage is applied to the waveguide, the TE-TM mode switching can be accomplished.

摘要翻译： 聚合物电光偏振波导型的TE-TM模式转换器使用电光双折射和电光效应作为非线性光波导介质，其中在聚合物薄膜极化期间形成的光导体 由极化电场的方向决定。 极化电极设计使得能够在聚合物薄膜中形成与TE和TM模式的电气方向成45°角的光导向器。 当波导接收到TE模式或TM模式的入射光时，TE（或TM）模式通过光导向器与垂直于其的导向器之间的有效折射系数切换到TM（或TE）模式。 如果调整极化电极的长度和波导的双折射，则各种电光偏振状态的变化是可能的。 极化的薄膜具有电光效应。 如果向薄膜施加电压，则由极化引起的双折射的尺寸是可变的。 通过使用电光效应，能够通过偏置电极将波导的输出状态保持为TE或TM模式，并且如果向波导施加开关电压，则可以实现TE-TM模式切换。