| 摘要 |
PROBLEM TO BE SOLVED: To provide a surface emitting laser using a photonic crystal for forming a waveguide even when using a semiconductor material unable to largely extract a refractive-index difference. SOLUTION: The present invention is directed to a surface emitting laser of an oscillation wavelengthλformed by laminating a plurality of semiconductor layers containing a first semiconductor multilayer mirror, an active layer, and a photonic crystal having a refractive-index distribution in the in-plane direction of a substrate on the substrate, wherein the photonic crystal is configured to diffract light into a first diffracted light and a second diffracted light which is different in diffraction angle from the first diffracted light when an incident light of the oscillation wavelengthλfrom a vertical direction to the in-plane is incident, and wherein the first semiconductor multilayer mirror has a stop band for each of the first diffracted light and the second diffracted light which are diffracted by the photonic crystal. COPYRIGHT: (C)2009,JPO&INPIT
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