发明名称 |
Bidirectionally transmittable optical wavelength division muliplexed transmission system |
摘要 |
Different bands (C-band and L-band) are allotted respectively to an upstream optical signal and a downstream optical signal. In a transmission-path optical fiber for Raman amplification, the C-band optical signal is amplified by pumping light from a C-band pumping light source, and the L-band optical signal is amplified by pumping light from an L-band pumping light source. As a result of this configuration, the optical signals are Raman-amplified through backward pumping in both upstream and downstream directions, whereby negative effects, which could be exerted on the optical signals by forward pumping, can be avoided.
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申请公布号 |
US2002051267(A1) |
申请公布日期 |
2002.05.02 |
申请号 |
US20010800891 |
申请日期 |
2001.03.08 |
申请人 |
NAKAMURA KENTARO;TERAHARA TAKAFUMI;KUMASAKO JUNICHI;HAINBERGER RAINER |
发明人 |
NAKAMURA KENTARO;TERAHARA TAKAFUMI;KUMASAKO JUNICHI;HAINBERGER RAINER |
分类号 |
H01S3/30;H01S3/06;H04B10/16;H04B10/17;H04B10/24;H04J14/00;H04J14/02;H04L5/14;(IPC1-7):H04J14/02 |
主分类号 |
H01S3/30 |
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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