公开(公告)号：EP1148373A3

公开(公告)日：2003-11-19

申请号：EP01810342.4

申请日：2001-04-05

申请人： JDS Uniphase Inc.

发明人： Trzecieski, Michael ,  Tager, Alex ,  Allard, Louis B. ,  Merchant, Clark

IPC分类号： G02F1/01

CPC分类号： G02F1/0136 ,  G02F1/035

摘要： An electro-optic waveplate for changing the state of polarization of light passing therethrough is disclosed. The waveplate provides a substantially constant birefringence when the principle birefringent axes of the electro-optic waveplate are rotated. The waveplate is an electro-optical material having two principle orthogonal birefringent axes that are rotable when suitable voltages are applied. Two related different voltages are applied along sequential or contiguous regions along the length L of the electro-optical waveplate for providing a controllable and varying electric field along the length L, such that retardance of the waveplate of the length L remains substantially constant while the birefringent axes of the electro-optic waveplate are rotated by varying the voltages. The two different voltages have a phase relationship or a phase and magnitude relationship therebetween.

公开(公告)号：EP1148373A2

公开(公告)日：2001-10-24

申请号：EP01810342.4

申请日：2001-04-05

申请人： JDS Uniphase Inc.

发明人： Trzecieski, Michael ,  Tager, Alex ,  Allard, Louis B. ,  Merchant, Clark

IPC分类号： G02F1/01

CPC分类号： G02F1/0136 ,  G02F1/035

摘要： An electro-optic waveplate for changing the state of polarization of light passing therethrough is disclosed. The waveplate provides a substantially constant birefringence when the principle birefringent axes of the electro-optic waveplate are rotated. The waveplate is an electro-optical material having two principle orthogonal birefringent axes that are rotable when suitable voltages are applied. Two related different voltages are applied along sequential or contiguous regions along the length L of the electro-optical waveplate for providing a controllable and varying electric field along the length L, such that retardance of the waveplate of the length L remains substantially constant while the birefringent axes of the electro-optic waveplate are rotated by varying the voltages. The two different voltages have a phase relationship or a phase and magnitude relationship therebetween.

摘要翻译： 公开了一种用于改变通过其中的光的偏振状态的电光波片。 当电光波片的原理双折射轴旋转时，波片提供基本上恒定的双折射。 波片是具有两个主要的正交双折射轴的电光材料，当适当的电压施加时，该双折射轴是可旋转的。 沿着电光波片的长度L的顺序或邻接区域施加两个相关的不同电压，以沿着长度L提供可控和变化的电场，使得长度L的波片的延迟基本保持恒定，而双折射 通过改变电压来旋转电光波片的轴。 两个不同的电压之间具有相位关系或者它们之间的相位和幅度关系。