SEMICONDUCTOR LASER, MANUFACTURING METHOD FOR THE SEMICONDUCTOR LASER, AND MOUNTING METHOD

摘要

PURPOSE: To prevent an edge protective film from flaking, in a semiconductor laser. CONSTITUTION: In addition to a p-type InGaAlP ridge stripe type optical waveguide layer 6, a p-type InGaAlP ridge stripe 6a is formed on a p-type InGaP etching stop layer 5, so that each optically non-waveguide projected part is formed on both sides of an optical waveguide projected part 13.