Optical pumped semiconductor chip and vertical external cavity surface emitting laser system using the same

摘要

The present invention relates to an optical pumping semiconductor chip and a vertical external cavity surface emitting laser system using the optical pumping semiconductor chip, wherein the optical pumping semiconductor chip has a plurality of absorbing layers stacked on top of the first current blocking layer; A quantum well layer is interposed between each of the absorbing layers; A second current blocking layer is formed on an uppermost absorbing layer of the absorbing layers; A distributed Bragg Reflection (DBR) mirror having a width W2 smaller than the width W1 of the second current blocking layer is formed on the second current blocking layer.;Therefore, in the present invention, the DBR mirror of the optical pumping semiconductor chip leaves only a predetermined area where the pumping light is irradiated and removes the rest, thereby reducing the volume of the DBR mirror and thus facilitating heat dissipation.