由于集成光学器件主要是由LiN_BO_3和Ⅲ—Ⅴ族晶体材料制备的,在这些电光晶体上形成良好性质的波导是很困难的。虽然利用半导体工艺中的扩散和喷涂方法,可以在某些基材上形成波导,但由于特别大的光损耗和进一步集成的困难使得这些方法制备的波导材料的实用化受到限制。对具有良好波导性质,能与不同电光晶体复合的材料进行研究与开发是必要的。聚合物材料在这一领域虽属后来者,却以其相容性好、制备方便、易于集成化等一系列 Since integrated optics are mainly made of LiN_BO_3 and III-V family crystal materials, it is very difficult to form good-quality waveguides on these electro-optic crystals. Although the waveguides can be formed on some substrates using the diffusion and spraying methods in semiconductor processes, practical application of the waveguide materials prepared by these methods is limited due to the particularly large optical loss and further integration difficulties. It is necessary to research and develop materials with good waveguide properties that can be combined with different electro-optic crystals. Although the polymer material in this area is a latecomer, but its good compatibility, easy preparation, easy integration and a series of