发明名称 |
A semiconductor laser device. |
摘要 |
<p>A semiconductor laser device with a resonator containing an active region for laser oscillating operation is disclosed which comprises a third-order diffraction grating with a periodic corrugation for producing feedback of laser light, the corrugation being of substantially rectangular shape, wherein the ratio of the width of each convex portion of the corrugation to the periodicity of the corrugation is in the range of 0.20 to 0.25, 0.40 to 0.60, or 0.70 to 0.95.</p> |
申请公布号 |
EP0356135(A2) |
申请公布日期 |
1990.02.28 |
申请号 |
EP19890308335 |
申请日期 |
1989.08.16 |
申请人 |
SHARP KABUSHIKI KAISHA |
发明人 |
KUDO, HIROAKI;TAKIGUCHI, HARUHISA;SAKANE, CHITOSE;SUGAHARA, SATOSHI |
分类号 |
H01S5/00;H01S5/12;H01S5/24 |
主分类号 |
H01S5/00 |
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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