发明名称 |
Semiconductor laser device, semiconductor laser module, and optical fiber amplifer |
摘要 |
A compressive strain GRIN-SCH-MQW active layer and a tensile strain GRIN-SCH-MQW active layer are laminated, and there are provided a diffraction grating formed in the vicinity of the compressive strain GRIN-SCH-MQW active layer and a diffraction grating formed in the vicinity of the tensile strain GRIN-SCH-MQW active layer, between the radiation end face and the reflection end face of the laser beam. A laser beam obtained by polarization-multiplexing a laser beam in the TE mode generated in the compressive strain GRIN-SCH-MQW active layer and a laser beam in the TE mode generated in the tensile strain GRIN-SCH-MQW active layer, and having a plurality of oscillation longitudinal modes of not larger than a predetermined output value is output by the wavelength selection characteristic of the diffraction gratings.
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申请公布号 |
US2003072342(A1) |
申请公布日期 |
2003.04.17 |
申请号 |
US20020259477 |
申请日期 |
2002.09.30 |
申请人 |
THE FURUKAWA ELECTRIC CO., LTD. |
发明人 |
YOSHIDA JUNJI;TSUKIJI NAOKI |
分类号 |
H01S5/062;H01S5/34;H01S5/40;(IPC1-7):H01S5/00;H01S3/08 |
主分类号 |
H01S5/062 |
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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