Patent ID: 7157298
Filing Date: 2007-01-02
Classification: B82Y,H01S

Abstract:
1. A method of fabricating a surface emitting semiconductor laser comprising the steps of: forming a first laminate of semiconductor layers and a second laminate of semiconductor layers on a substrate, the first laminate including a first reflection mirror layer of a first conduction type, an active region, a III-V semiconductor layer containing Al, and a second reflection mirror layer of a second conduction type, the second laminate being used for monitoring and having an oxidizable region; etching the first laminate so as to form a mesa on the substrate in which a side surface of the III-V semiconductor layer contained in the first laminate is exposed; starting oxidization of the III-V semiconductor layer from the side surface at an oxidization rate; and monitoring a reflectance of the second laminate for monitoring or its variation and terminating oxidization of the III-V semiconductor layer after a constant time from a time when the reflectance or its variation reaches a corresponding given value.