发明名称 |
2-DIMENSIONAL PHOTONIC CRYSTAL SURFACE EMITTING LASER LIGHT SOURCE |
摘要 |
An objective of the present invention is to provide a surface emitting laser capable of selectively generating a laser oscillation in the fundamental mode and thereby emitting a single-wavelength laser light. In a surface emitting laser including an active layer and a two-dimensional photonic crystal provided on one side of the active layer, a reflector 45 or 46 is provided at least at a portion of the circumference of the two-dimensional photonic crystal. The reflector has a reflectance distribution in which the reflectance has a maximum value at a position where the amplitude envelope of the fundamental mode of an internal resonance light created within the two-dimensional photonic crystal. This design strengthens the fundamental mode while suppressing the second mode, thus enabling the laser oscillation in the fundamental mode to be selectively obtained, so that a single-wavelength laser light can be emitted.
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申请公布号 |
EP1998420(A1) |
申请公布日期 |
2008.12.03 |
申请号 |
EP20070736925 |
申请日期 |
2007.03.20 |
申请人 |
KYOTO UNIVERSITY;ROHM CO., LTD. |
发明人 |
SAKAI, KYOSUKE;MIYAI, EIJI;NODA, SUSUMU;OHNISHI, DAI;KUNISHI, WATARU |
分类号 |
H01S5/18;H01S5/10;H01S5/125 |
主分类号 |
H01S5/18 |
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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