发明名称 |
Apparatus and method for improving the frequency response of modulators based on the Sagnac interferometer |
摘要 |
An optical method and apparatus particularly useful as an intensity modulation system, in which two phase modulators are placed in the loop of a Sagnac interferometer. Selective placement of the modulators, and the amplitude of any modulation signal input to the modulators, varies the bandwidth and frequency response of the system. In a preferred embodiment, the ratio of the optical distances of the modulators from interferometric midpoint, and the ratio of modulation signal amplitudes, is about 3:1, which serves to broaden and flatten the frequency response of the system.
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申请公布号 |
US6072919(A) |
申请公布日期 |
2000.06.06 |
申请号 |
US19980005481 |
申请日期 |
1998.01.12 |
申请人 |
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY |
发明人 |
DENNIS, MICHAEL L.;BURNS, WILLIAM K.;DULING, III, IRT N.;MOELLER, ROBERT P. |
分类号 |
G02F1/21;G02F1/225;(IPC1-7):G02F1/035 |
主分类号 |
G02F1/21 |
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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