This work was supported by the National "973" Project of China (No. G20000683-1);the National "863" Project of China (No. 2001AA312050);the National Natural Science Foundation of China (No. 90101023).
An improved butt coupling method is used to fabricate an electroabsorption modulator (EAM) monolithically integrated with a distributed feedback (DFB) laser.The obtained electroabsorption-modulated laser (EML) chip wi...