发明名称 |
Raman amplifying device and method for pump modulation |
摘要 |
<p>The invention is dealing with a Roman amplifying device comprising an optical path, pump sources for generating a plurality of Raman pump signals and means for coupling the plurality of Raman pump signals into the optical path for backward pumping. The plurality of optical Raman pump signals are time-division multiplexed by multiplexing controlling means and the controlling means apply a modulation frequency beyond the corner frequency of the co-propagating modulation transfer function. The method to modulate the time division multiplexed Raman signal gives a condition to avoid the increase of double Rayleigh scattering noise. <IMAGE></p> |
申请公布号 |
EP1469621(B1) |
申请公布日期 |
2005.09.07 |
申请号 |
EP20030290921 |
申请日期 |
2003.04.14 |
申请人 |
ALCATEL |
发明人 |
MARTINELLI, CATHERINE;MONGARDIEN, DOMINIQUE |
分类号 |
H01S3/094;H01S3/30;H04B10/291;(IPC1-7):H04B10/17 |
主分类号 |
H01S3/094 |
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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