发明名称 |
LINEAR REPEATER AND OPTICAL FIBER COMMUNICATION SYSTEM |
摘要 |
<p>An inline repeater that uses a forward-pumped DRA that can use a pumping light source such as an FBG pumping light source and a fiber laser, which are the most commonly used, and an optical fiber communication system are realized. The optical fiber communication system comprises silica fiber as a gain medium for Raman amplification to amplify a signal light; a pumping light source that emits a pumping light that co-propagates through the silica fiber in the same direction as the signal light; and a multiplexer disposed between the silica fiber and the pumping light source that multiplexes the signal light and the pumping light, with the multiplexer being provided with a means to multiplex the signal light input thereto having a wavelength longer than the zero-dispersion wavelength of the silica fiber and the pumping light emitted from the pumping light source, and the pumping light source being equipped with a means to emit pumping light, with the longest wavelength of the pumping light being shorter than the shortest wavelength of the signal light by a frequency difference on the low-frequency side of 13.7 to 30 THz.</p> |
申请公布号 |
EP1760521(A1) |
申请公布日期 |
2007.03.07 |
申请号 |
EP20050750960 |
申请日期 |
2005.06.17 |
申请人 |
NIPPON TELEGRAPH AND TELEPHONE CORPORATION |
发明人 |
MASUDA, HIROJI;SATO, KENJI;MIYAMOTO, YUTAKA |
分类号 |
G02F1/35;H01S3/00;H01S3/067;H01S3/094;H01S3/0941;H01S3/16;H01S3/30;H04B10/29;H04B10/294 |
主分类号 |
G02F1/35 |
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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