发明名称 |
Optical amplifying transmission system and optical amplifier |
摘要 |
To increase the number of multiplexed wavelengths and to improve transmission characteristics in a wavelength-division-multiplexed transmission, a bandwidth compressor for bandwidth-compressing the wavelength-division-multiplexed signal light is disposed at a front part of respective optical amplifiers and a bandwidth expander for bandwidth-expanding the wavelength-division-multiplexed signal light output from said optical amplifiers is disposed at a rear part of said optical amplifiers.
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申请公布号 |
US6504638(B1) |
申请公布日期 |
2003.01.07 |
申请号 |
US19980206512 |
申请日期 |
1998.12.07 |
申请人 |
KDD CORPORATION |
发明人 |
TANAKA KEIJI;EDAGAWA NOBORU;TAGA HIDENORI;YAMAMOTO SHU |
分类号 |
H04J14/00;H04B10/02;H04B10/16;H04B10/17;H04J14/02;(IPC1-7):H04B10/16;H04B10/12;H01S3/00 |
主分类号 |
H04J14/00 |
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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