发明名称 |
Acousto-optic variable attenuator with active cancellation of back reflections |
摘要 |
An acousto-optic filter includes an optical fiber with a first region and a second region. A first acoustic wave generator is coupled to optical fiber. The first acoustic wave generator produces a first acoustic wave that travels in a first direction in the first region. A backward-propagating wave is generated in response to propagation of the first acoustic wave along the optical fiber. The backward-propagating wave travels in an opposite direction relative to the first acoustic wave. A first acoustic wave propagation member is coupled to the optical fiber. A second acoustic wave generator is coupled to the optical fiber at the second region. The second acoustic wave generator produces a second acoustic wave that combines with the backward propagating acoustic wave.
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申请公布号 |
US6510261(B2) |
申请公布日期 |
2003.01.21 |
申请号 |
US20000729661 |
申请日期 |
2000.12.04 |
申请人 |
NOVERA OPTICS, INC. |
发明人 |
SORIN WAYNE V.;POLYNKIN PAVEL;SHEPHERD STEVEN L.;KIM BYOUNG YOON;YUN SEOK HYUN |
分类号 |
G02B6/02;G02B6/14;G02B6/255;G02B6/26;G02B6/34;G02F1/125;H04J14/02;(IPC1-7):G02B6/42 |
主分类号 |
G02B6/02 |
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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