申请人:Lockheed Missiles & Space Company, Inc.
公开号:US05007696A1
公开(公告)日:1991-04-16
A three-dimensional electro-optic waveguide is formed as a channel in a structure made of an organic non-linear optical polymer. A poling electric field is maintained in a portion of the polymer structure defining the channel, and the polymer structure is heated above the glass-transition temperature to enable dipolar moieties of the polymer to become aligned by the poling field. Heating continues until the dipolar moieties are sufficiently aligned to produce a higher index of refraction in the channel portion than in adjacent cladding portions of the polymer structure for at least one polarization of optical radiation propagating through the channel. The poling field is maintained as the polymer structure is then cooled below glass-transition temperature, thereby preserving alignment of the dipolar moieties (and hence preserving the differential index of refraction) in the channel portion of the polymer structure. Guided modes of optical radiation of at least one polarization can be supported in the channel.
一种三维电光波导形成在由有机非线性光学聚合物制成的结构中的通道中。在定义通道的聚合物结构的一部分中保持极化电场,并将聚合物结构加热至玻璃转变温度以上,以使聚合物的偶极子基团通过极化场对齐。加热继续,直到偶极子基团足够对齐,以在通过通道传播的光辐射的至少一个偏振方向上,在聚合物结构的通道部分中产生比相邻包层部分更高的折射率。然后,在将聚合物结构冷却至玻璃转变温度以下的同时,保持极化场,从而保持聚合物结构的通道部分中偶极子基团的对齐(因此保持差分折射率)。可以支持至少一个偏振方向的光辐射的引导模式在通道中。