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An electroabsorption modulator (EAM) was integrated with a distributed feedback laser and a spot-size expander forming an electro-modulated laser (EML) device. The EMLs are based on the conventional InP/InGaAsP material system and are designed for flip-chip mounting. They rely on a buried heterostructure with Fe-doped blocking layers, and the EAM section is optically butt-joint-coupled. The performance...
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