Patent ID: 6985504

Claim:
A method for manufacturing a semiconductor laser comprising: forming an active layer and a pair of cladding layers sandwiching the active layers on a substrate, and processing the layers, followed by forming a p-type electrode and a n-type electrode, so as to compose a laser a laser wafer; cleaving the laser wafer successively at a resonator length, so as to form a laser bar in which semiconductor lasers are formed side by side; providing a first dielectric film with hydrogen added therein on at least one end face of a resonator of the semiconductor laser; providing a second dielectric film for suppressing diffusion of hydrogen, the second dielectric film being interposed between the first dielectric film and the one end face of the resonator; providing a sub-mount with a solder on a surface of the sub-mount; heating the sub-mount to a temperature at which the solder is melted and then mounting the semiconductor laser separated from the laser bar on the sub-mount with the solder interposed therebetween while pressing the semiconductor laser against the sub-mount, thereby bonding the semiconductor to the sub-mount; and heating the sub-mount so that the solder is melted while removing the pressing force applied to the semiconductor laser.