To efficiently control a Raman amplifier.
The multiple-wavelength-pumped Raman amplifier which sets and controls arbitrary signal gain and output characteristics for a wavelength-multiplexed signal light, is provided with a control unit that makes controls to determine two fluctuation amounts from among first to fourth fluctuation amounts by determining other two fluctuation amounts in advance, and also to determine pumping light powers satisfying a relational expression, on the basis of the relational expression associating a first fluctuation amount that is an amount of fluctuation in a current signal light power at a signal input end, an second fluctuation amount that is an amount of fluctuation in a current pumping light power at a pumping light input end, a third fluctuation amount that is an amount of fluctuation in the current signal power at a signal output end, and a fourth fluctuation amount that is an amount of fluctuation in the current pumping light power at a pumping light output end.
COPYRIGHT: (C)2010,JPO&INPIT
SAKANO MISAO
NAKAJIMA TAKESHI
NAMIKI SHU
| JP2002072262A | 2002-03-12 | |||
| JP2001251006A | 2001-09-14 | |||
| JP2003140208A | 2003-05-14 |
Tashiro Toshio