发明授权
US08358460B2 Quasi-phase matched optical waveguide for preventing back conversion
有权
准相位匹配光波导，用于防止反向转换
- 专利标题： Quasi-phase matched optical waveguide for preventing back conversion
- 专利标题（中）： 准相位匹配光波导，用于防止反向转换
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申请号： US12759179申请日： 2010-04-13
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公开(公告)号： US08358460B2公开(公告)日： 2013-01-22
- 发明人: Shih-Chiang Lin , Nai-Hsiang Sun , Po-Jui Chiang
- 申请人： Shih-Chiang Lin , Nai-Hsiang Sun , Po-Jui Chiang
- 申请人地址： TW Dashu Township, Kaohsiung County
- 专利权人： I Shou University
- 当前专利权人： I Shou University
- 当前专利权人地址： TW Dashu Township, Kaohsiung County
- 代理机构： Kilpatrick Townsend & Stockton LLP
- 主分类号： G02F1/35
- IPC分类号： G02F1/35 ; H01S3/10
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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