发明授权
US4666255A Method and apparatus for acousto-optically shifting the frequency of a
light signal propagating in a single-mode fiber
失效
用于对在单模光纤中传播的光信号的频率进行声光移位的方法和装置
- 专利标题： Method and apparatus for acousto-optically shifting the frequency of a light signal propagating in a single-mode fiber
- 专利标题（中）： 用于对在单模光纤中传播的光信号的频率进行声光移位的方法和装置
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申请号： US873488申请日： 1986-06-12
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公开(公告)号： US4666255A公开(公告)日： 1987-05-19
- 发明人: Henry F. Taylor , Scott C. Rashleigh , Joseph F. Weller , Kiyoshi Nosu
- 申请人： Henry F. Taylor , Scott C. Rashleigh , Joseph F. Weller , Kiyoshi Nosu
- 申请人地址： MD Bowie
- 专利权人： Sachs/Freeman Associates, Inc.
- 当前专利权人： Sachs/Freeman Associates, Inc.
- 当前专利权人地址： MD Bowie
- 主分类号： G02F1/01
- IPC分类号： G02F1/01 ; G02B5/30 ; G02B6/02 ; G02B6/26
摘要：
An acousto-optic frequency shifter in which two cylindrical acoustic resonators driven 90.degree. out of phase from one another are placed around a birefringent, single-mode optical fiber approximately three-quarters of a polarization beat length apart. The resonators interact with optical radiation propagating in one of two polarization modes of the fiber, the first to cross-couple two sidebands into the other polarization mode, and the second to suppress one of the sidebands in the cross-coupled mode and enhance the other, thereby creating a single sideband signal completely within the fiber.
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