发明名称 |
Optical fiber bandwidth limiting |
摘要 |
A bandwidth limiter for an optical fiber transmission path comprises a four-port optical coupler via which an optical signal is passed. A spliced optical fiber provides a loop, from an output to an input of the coupler, with a predetermined propagation delay and attenuation. An alternative arrangement uses two couplers which are coupled together via fibers of different length and hence propagation delay.
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申请公布号 |
US4859018(A) |
申请公布日期 |
1989.08.22 |
申请号 |
US19870061625 |
申请日期 |
1987.06.15 |
申请人 |
NORTHERN TELECOM LIMITED |
发明人 |
O'SULLIVAN, MAURICE S.;KIM, HYUNG B.;SO, VINCENT C.;VELLA, PAUL J. |
分类号 |
G02B6/28;H04B10/18 |
主分类号 |
G02B6/28 |
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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