US 7,526,201 B2
Optical fiber transmission system with noise loading
Georg H. Mohs, E. Brunswick, N.J. (US); Stuart M. Abbott, Marlboro, N.J. (US); Franklin W. Kerfoot, III, Red Bank, N.J. (US); R. Brian Jander, Freehold, N.J. (US); and Morten Nissov, Ocean, N.J. (US)
Assigned to Tyco Telecommunications (US) Inc., Morristown, N.J. (US)
Filed on Jun. 25, 2004, as Appl. No. 10/877,059.
Prior Publication US 2005/0286905 A1, Dec. 29, 2005
Int. Cl. H04B 10/08 (2006.01); H04B 10/04 (2006.01); H04J 14/02 (2006.01)
U.S. Cl. 398—37  [398/38; 398/94; 398/197] 8 Claims
OG exemplary drawing
 
1. A method of transmitting a wavelength division multiplexed signal on an optically amplified transmission path to avoid effects of non-linearities associated with the transmission path, said method comprising:
generating a source signal in a transmitting terminal, said source signal being within a system bandwidth comprising at least one unutilized channel and at least one information signal on an associated utilized channel;
imparting amplified spontaneous emission (ASE) noise on said unutilized channels in said transmitting terminal by intentionally attenuating said source signal in said transmitting terminal and amplifying said attenuated source signal in an optical amplifier in said transmitting terminal; and
coupling said source signal and said ASE noise on said unutilized channels from said transmitting terminal on said optically amplified transmission path.