发明名称 |
An optical apparatus and a method using the apparatus, which utilizes the occurrence of a change in a both-end voltage of an amplifying region. |
摘要 |
<p>In an optical apparatus, such as a semiconductor optical amplifier device and an optical filtering apparatus, there are provided an optical amplifier device, a detector and a controller. The optical amplifier device has such a structure that exhibits a both-end voltage change at an optical amplification time of an input light. The detector detects the both-end voltage change, and the controller performs a predetermined control of a portion other than the optical amplifier device, such as another optical amplifier portion and a tunable band pass filter portion. <IMAGE></p> |
申请公布号 |
EP0562518(A2) |
申请公布日期 |
1993.09.29 |
申请号 |
EP19930104676 |
申请日期 |
1993.03.22 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
NITTA, JUN;NAKAMURA, KENJI |
分类号 |
H01S5/00;H01S5/026;H01S5/50;H04B10/25;H04B10/291;H04B10/293 |
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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