发明名称 |
Quasi-phase matched optical waveguide for preventing back conversion |
摘要 |
A QPM waveguide includes an optical substrate having periodic domain-inverted regions and non-inverted regions which are arranged alternately, and a waveguide part passing through the domain-inverted regions and non-inverted regions. The substrate is divided into at least two sections each of which has a wave input facet and a wave output facet. At least one band-pass filter layer is disposed on the wave input facet of one section to filter out a signal wave for preventing back conversion so that the energy of the conversion wave can increase. A method for preventing the back conversion is also disclosed.
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申请公布号 |
US8358460(B2) |
申请公布日期 |
2013.01.22 |
申请号 |
US20100759179 |
申请日期 |
2010.04.13 |
申请人 |
I SHOU UNIVERSITY;LIN SHIH-CHIANG;SUN NAI-HSIANG;CHIANG PO-JUI |
发明人 |
LIN SHIH-CHIANG;SUN NAI-HSIANG;CHIANG PO-JUI |
分类号 |
G02F1/35;H01S3/10 |
主分类号 |
G02F1/35 |
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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