公开(公告)号：US06587259B2

公开(公告)日：2003-07-01

申请号：US09916454

申请日：2001-07-27

申请人： Mohammed N. Islam ,  Carl A. DeWilde ,  Michael J. Freeman

发明人： Mohammed N. Islam ,  Carl A. DeWilde ,  Michael J. Freeman

IPC分类号： H04B1000

CPC分类号： H04B10/2916 ,  H01S3/06754 ,  H01S3/094096 ,  H01S3/10015 ,  H01S3/1301 ,  H01S3/302 ,  H01S2301/02 ,  H04B10/2525 ,  H04B15/00 ,  H04B2210/003 ,  H04B2210/256

摘要： One aspect of the invention includes an optical amplifier operable to amplify a plurality of optical wavelength signals at least in part through Raman amplification. The amplifier includes an input operable to receive a plurality of wavelength signals and an output operable to communicate an amplified version of at least some of the plurality of wavelength signals. The amplifier further includes a pump assembly operable to generate one or more pump signals and a gain medium operable to receive the plurality of wavelength signals and the one or more pump signals and to facilitate amplification of at least some of the plurality of wavelength signals. The amplifier has associated with it a noise figure having a shape varying as a function of wavelength. At least one of the one or more pump signals is operable to have its power varied to selectively control the shape of the noise figure.