Patent ID: 7881358
Filing Date: 2011-02-01
Classification: H01S

Abstract:
1. A surface emitting laser comprising: a first multilayer Bragg reflecting mirror including a first layer and a first high refraction index layer having a refraction index larger than that of said first layer; a second multilayer Bragg reflecting mirror including a second layer and a second high refraction index layer having a refraction index larger than that of said second layer; and an optical resonator unit sandwiched by said first and second multilayer Bragg reflecting mirrors and including an active layer for generating an optical gain, wherein: with respect to said first multilayer Bragg reflecting mirror, said first layer is in contact with said optical resonator unit, and with respect to said second multilayer Bragg reflecting mirror, said second layer is in contact with said optical resonator unit, effective refraction index n said active layer is situated at a position spaced away by a value of ΔL from a boundary between said optical resonator unit and said first multilayer Bragg reflecting mirror or said second multilayer Bragg reflecting mirror, where ΔL is a value resulting from subtraction of 0.5λ from said optical path length n