发明名称 |
Vertical cavity surface emitting semiconductor laser device |
摘要 |
A vertical cavity surface emitting semiconductor laser (VCSEL) device has p-type and n-type DBRs sandwiching therebetween a resonant cavity including an active layer. Each the DBRs has a plurality of layer pairs each including a Al<SUB>x1</SUB>Ga<SUB>1-x1</SUB>As high-reflectivity layer and an Al<SUB>x2</SUB>Ga<SUB>1-x2</SUB>As low-reflectivity layer and an Al<SUB>x3</SUB>Ga<SUB>1-x3</SUB>As slope content layer interposed between each of the high-reflectivity layers and adjacent low-reflectivity layer. The slope content layers in the vicinity of the active layer has an Al content x 3 wherein 0 <x 3 <=0.3 and 0.55<=x 3 <1 and an impurity concentration of 3x10<SUP>17 </SUP>cm<SUP>-3 </SUP>or above.
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申请公布号 |
US2005220160(A1) |
申请公布日期 |
2005.10.06 |
申请号 |
US20050138424 |
申请日期 |
2005.05.27 |
申请人 |
THE FURUKAWA ELECTRIC CO., LTD. |
发明人 |
SHINAGAWA TATSUYUKI;IWAI NORIHIRO;YOKOUCHI NORIYUKI |
分类号 |
H01S5/183;H01S5/323;(IPC1-7):H01S5/00 |
主分类号 |
H01S5/183 |
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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