摘要
利用增镀光学薄膜的方法，有效地将原来处于双模工作的１．３μｍ ＤＦＢ激光器变为单模工作的激光器．选择的增镀膜层起到了抑制边模的作用．从而改变了激光器的模式特性．实验表明。
The selected coating technique can be used to improve the single longitudinal mode yield of the index\|coupled(IC) DFB lasers,because the facet of the grating for IC\|DFB lasers can be changed by the selected coating on the facet.The experiments show that the selected coating technique is an efficient method for transforming two mode operation of IC\|DFB lasers to single mode.
