Patent ID: 7873090
Filing Date: 2011-01-18
Classification: B82Y,H01L,H01S,Y02E

Abstract:
1. A surface emitting laser, comprising three or more light-emitting portions for emitting laser light in different linearly polarized light directions, the light-emitting portions being formed on a substrate and located close to each other, wherein the light-emitting portions, include respective metal opening arrays each including a metal layer and provided at a light-emitting surface of the light-emitting portion, the metal layer includes a plurality of openings arranged at regular intervals and each having a diameter equal to or smaller than an oscillation wavelength of the laser light, the openings are arranged to form a rectangular lattice having two different lattice pitches P the lattice direction of the rectangular lattice differs among the metal opening arrays, polarized light directions of light beams emitted from the respective light-emitting portions are respectively 0° or more and less than 180° and coincides with a direction of P P P P where ∈