发明名称 |
SURFACE EMITTING SEMICONDUCTOR LASER, OPTICAL RECORDING HEAD, AND OPTICAL RECORDING APPARATUS |
摘要 |
Disclosed is an optical recording head which is provided with a surface emitting laser that emits laser light which is efficiently introduced into a waveguide through a grating coupler (diffraction grating). Specifically disclosed is an optical recording head which is provided with a surface emitting laser comprising at least a light source, and a waveguide that is connected thereto through a diffraction grating and irradiates a recording medium with the light from the light source. The light source has a two-dimensional photonic crystal structure in the surface that faces the waveguide. Regions of the two-dimensional photonic crystal structure other than the region facing the diffraction grating are converted, and the region facing the diffraction grating serves as a surface emitting. |
申请公布号 |
US2012072931(A1) |
申请公布日期 |
2012.03.22 |
申请号 |
US201013375407 |
申请日期 |
2010.03.05 |
申请人 |
IMADA MASAHIRO;SEKINE KOUJIROUS |
发明人 |
IMADA MASAHIRO;SEKINE KOUJIROUS |
分类号 |
G11B7/1353;G11B7/08;H01S5/026 |
主分类号 |
G11B7/1353 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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