Title :
The Study of Information Capacity in Multispan Nonlinear Optical Fiber Communication Systems Using a Developed Perturbation Technique
Author :
Xiang, Lian ; Zhang, Xiao Ping
Author_Institution :
Sch. of Inf. Sci. & Eng., Lanzhou Univ., Lanzhou, China
Abstract :
We study the information capacity for a multispan optical fiber transmission system with losses, dispersion, nonlinearity, and amplified spontaneous emission noise. A perturbation technique is developed to examine the information capacity, and a semianalytic expression of the conditional probability distribution function is determined initially. A novel semianalytical form of the information capacity was obtained, which can be extended to the wavelength division multiplexing optical fiber communication systems. Computer simulations are executed for various parameters of the transmission system. The studied results indicate that the capacity does not monotone increase with the input power and is affected by the nonlinear coefficient and bit rate prominently.
Keywords :
channel capacity; optical fibre communication; perturbation techniques; superradiance; wavelength division multiplexing; amplified spontaneous emission noise; information capacity; multispan nonlinear optical fiber communication; perturbation technique; probability distribution function; semianalytical form; wavelength division multiplexing; Channel capacity; Noise; Optical fiber amplifiers; Optical fiber communication; Optical fiber dispersion; Wavelength division multiplexing; Conditional probability; developed perturbation technique; high bit rate; information capacity;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2010.2102337