SEMICONDUCTOR LASER MODULE, SEMICONDUCTOR LASER STACK, AND METHOD FOR MANUFACTURE OF SEMICONDUCTOR LASER MODULE

摘要

Disclosed is a semiconductor laser module comprising a submount (9), a semiconductor laser element (5) provided on the submount (9), and a submount (3) provided on the semiconductor laser element (5), wherein the semiconductor laser element (5) has an active layer (11a) provided on its surface layer facing to the submount (9), and the thermal expansion coefficient of the submount (9) is larger than that of the submount (3).