Emitting Laser and the distributed Bragg reflector (DBR)-free structure employing a single
and double diamond heat-spreaders, respectively. Both heterostructures grown by
Molecular Beam Epitaxy employ two identical active regions designed for emission at 980
nm. We show that the thermal resistance has been decreased 15 times when there is no
DBR and heat is extracted from both side of active region. For DBR-free laser no thermal …