An ultraviolet irradiation technique is presented and applied successfully to As-2S-8 channel waveguide preparation on the basis of analyzing these experimental data. This channel waveguide of As-2S-8 displays good characteristics of a waveguide using a guided mode excitation. 提出并采用紫外光激励的方法试制了As2S8条形波导,导模激励显示该波导具有良好的导波特性。