| 摘要 |
PROBLEM TO BE SOLVED: To provide a surface-emitting semiconductor laser element using a photonic crystal structure and capable of efficiently outputting a laser beam. SOLUTION: The surface-emitting semiconductor laser element 10 comprises: a substrate 12; an active layer 16 provided on the main surface 12a of the substrate 12; a photonic crystal layer 20 optically coupled with the active layer 16; a beam output plane S for outputting a laser beam generated by the semiconductor laser element 10; and an electrode 28 provided on the beam output plane S. The photonic crystal layer 20 has a two-dimensional photonic crystal structure for partially diffracting the beam having the predetermined wavelength included in the beam generated by the active layer to the beam output plane side and confining the other part of the beam having the predetermined wavelength to the plane in approximately parallel with the main surface. The predetermined wavelength is the wavelength of the laser beam, the electrode has at least one edge part 28a, 28b, and phase shift parts 36x, 36y are formed under vicinity of the edge part of the photonic crystal layer. COPYRIGHT: (C)2009,JPO&INPIT
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