发明名称 OPTICAL AMPLIFIER AND OPTICAL FIBER COMMUNICATION SYSTEM PROVIDED WITH SAME
摘要 <P>PROBLEM TO BE SOLVED: To provide an optical amplifier with the less wavelength dependency of the gain, free from a variation of input power or the number of channels in a WDM. <P>SOLUTION: In an optical amplifier which amplifies and outputs wavelength-division-multiplexing signal light, this optical amplifier comprises an optical amplification medium applied with wavelength-division-multiplexing signal light, a means for carrying out the pumping of the optical amplification medium, and a monitor means for detecting the spectrum of amplified wavelength-division-multiplexing signal light which is output from the optical amplification medium. Further, the amplifier has a parameter control means for controlling parameters on which the gain properties expressing the relationship between the gain and wavelength of an optical amplification medium depend, and for making the gain properties in a band including each wavelength of wavelength-division-multiplexing signal light flat, on the basis of the detected spectrum. <P>COPYRIGHT: (C)2006,JPO&NCIPI
申请公布号 JP2005294854(A) 申请公布日期 2005.10.20
申请号 JP20050131226 申请日期 2005.04.28
申请人 FUJITSU LTD 发明人 ONAKA HIROSHI;MIYATA HIDEYUKI;OTSUKA KAZUE
分类号 H01S3/10;H04B10/07;H04B10/29;H04B10/293;H04B10/294;H04B10/564;H04B10/572;H04J14/00;H04J14/02 主分类号 H01S3/10
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