DISTRIBUTED BRAGG REFLECTOR, SURFACE EMISSION LASER ELEMENT, SURFACE EMISSION LASER ARRAY, OPTICAL INTERCONNECTION SYSTEM AND OPTICAL COMMUNICATION SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a distributed Bragg reflector having a low electric resistance and a high reflectance.;SOLUTION: In the distributed Bragg reflector (DBR), a first semiconductor layer 1 having a large refractive index and a second semiconductor layer 2 having a small refractive index are formed alternately, and a material layer 3 having a refractive index between those of the first semiconductor layer 1 and the second semiconductor layer 2 is provided between the first semiconductor layer 1 and the second semiconductor layer 2. The distributed Bragg reflector has a design reflection wavelength longer than 1.1 μm and the material layer 3 has a thickness in the range of 5-50 nm.;COPYRIGHT: (C)2004,JPO