摘要
A composite waveguide of 4-butoxycarbonylmethylurethane polydiacetylene has been fabricated. By measuring the change with optical intensity in the coupling angle between input laser beam and a planar waveguide mode in the structure, we estimated that the intensity-dependent index of refraction (n2) approximately equals -1.9×10-7 (MW/cm2)-1.
A composite waveguide of 4-butoxycarbonylmethylurethane polydiacetylene has beenfabricated.By measuring the change with optical intensity in the coupling angle between in-put laser beam and a planar waveguide mode in the structure,we estimated that the intensi-ty-dependent index of refraction（n<sub>2</sub>）approximately equals-1.9×10<sup>-7</sup>（MW/cm<sup>2</sup>）<sup>-1</sup>.
基金
Supported by the High Technology Research and Development Programme of China.
