Optical losses in O+ and B+ implanted GaAs for stripe laser

Ion implantation is now often used to delineate the stripe geometry of laser diodes. This technique creates some defects and it is important to know the optical properties of the implanted zone. The refractiveindex increase produced by ion implantation in heavily doped material allows optical guiding. So, it is possible to measure the total optical losses of the implanted layer after different heat treatments.