Patent ID: 7333522
Filing Date: 2008-02-19
Classification: H01S

Abstract:
1. A laser, comprising: a substrate; a first Bragg reflector layer sequence on said substrate; an active layer sequence on said first Bragg reflector layer sequence; a second Bragg reflector layer sequence on said active layer sequence; and a voltage source for applying a voltage via said active layer sequence to generate a beam of laser radiation, wherein at least one of said first Bragg reflector layer sequence, said active layer sequence or said second Bragg reflector layer sequence includes a layer having a periodic pattern positioned in a direction of said beam to stabilize a polarization of said beam, wherein said laser radiation has a wavelength of about 850 nanometers, and wherein said periodic pattern has a period of between about 0.7 micrometers, and a thickness of between about 40 nanometer and about 70 nanometers.