发明名称 |
Optical amplifying apparatus, optical amplifying method, and optical communication system |
摘要 |
An optical amplifying apparatus of the present invention comprises a correction part for correcting a predetermined fixed value of an output optical level by a correction amount according to an optical power of amplified spontaneous emission (ASE). The correction amount is, for example, computed by predetermined formulas. According to the present invention, when a WDM optical signal is optically amplified, the output is fixedly amplified for each channel by the correction amount which is a value obtained with the ASE levels taken into consideration, so that a fluctuation in the level of the average optical power of the channels is suppressed even if an optical signal is dropped/added therefrom/thereto during repeated transmissions.
|
申请公布号 |
US6570703(B2) |
申请公布日期 |
2003.05.27 |
申请号 |
US20010968892 |
申请日期 |
2001.10.03 |
申请人 |
FUJITSU LIMITED |
发明人 |
MURAKAMI MAKOTO;SEKIYA MOTOYOSHI;SAITO HIDETO;TOMOFUJI HIROAKI;SAKAMOTO TAKESHI;YAMANE KAZUO |
分类号 |
H01S3/10;H01S3/06;H01S3/067;H01S3/094;H04B10/16;H04B10/17;H04J14/00;H04J14/02;(IPC1-7):H04B10/08;G02F1/35 |
主分类号 |
H01S3/10 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|