发明名称 |
Wavelength converting device and converting method |
摘要 |
A multi quantum well layer has a lamination of first and second quantum well layers each sandwiched between barrier layers and defining a quantum well. The band gap of the second quantum well layer is larger than the band gap of the first quantum well layer. Current is flowed through the multi quantum well layer from a pair of electrodes. A first optical system input inputting a signal light wave to the multi quantum well layer via an input plane of the multi quantum well layer. A second optical system propagates an output light wave output from an output plane of the multi quantum well layer. A wavelength converting device is provided which can suppress the conversion efficiency from being lowered at a large detuning angular and obtain a relatively high conversion efficiency even at a negative detuning angular frequency.
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申请公布号 |
US2001024316(A1) |
申请公布日期 |
2001.09.27 |
申请号 |
US20010759338 |
申请日期 |
2001.01.16 |
申请人 |
FUJITSU LIMITED, KAWASAKI, JAPAN |
发明人 |
KUWATSUKA HARUHIKO |
分类号 |
G02F1/365;G02F1/017;G02F1/35;(IPC1-7):G02F1/365 |
主分类号 |
G02F1/365 |
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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