Effect of Fiber Length on Four Wave Mixing in WDM Optical Fiber Systems
نویسندگان
چکیده
This paper introduces the non linear optical effect known as four wave mixing (FWM). In wavelength division multiplexing (WDM) systems four wave mixing can strongly affect the transmission performance on an optical link. As a result it is important to investigate the impact of FWM on the design and performance of WDM optical communication systems. The main objective of this paper is to analyze the FWM power for different values of fiber length by designing and simulating a model in Optisim. In this paper, we have simulated the FWM design for three waves. The results obtained show that when the optical transmision length is 100 km, 200 km, 300 km, 400 km and 450 km the FWM power is respectively, becomes about 18 dBm, -8 dBm, -28 dBm, -48 dBm and -58 dBm. This result confirms that the fiber nonlinearities play decisive role in the WDM. It is also to be noticed that as the value of optical length increases, FWM component almost reduces to zero.
منابع مشابه
Suppression of Four Wave Mixing Based on the Pairing Combinations of Differently Linear-Polarized Optical Signals in WDM System
Data transmission in optical systems and increased transmission distance capacity benefit by using optical amplification wavelength division multiplexing (WDM) technology. The combination of four waves (FWM) is a non-linear effect in the wavelength division multiplex (WDM), when more than two wavelengths of light in a fiber launch will occur. FWM amount depends on the channel, the channel spaci...
متن کاملSimulation Analysis of Four Wave Mixing Effect in WDM Optical System
The nonlinear effect degrades the system performance. Because nonlinear effects tend to manifest themselves when optical power is very high, they become important in WDM. Four-wave mixing (FWM) is one of the dominating degradation effects in wavelength divisionmultiplexing (WDM) systems with dense channel spacing and low chromatic dispersion on the fiber. Four wave mixing (FWM) is a parametric ...
متن کاملFour Wave Mixing Nonlinearity Effect in WDM Radio over Fiber System
The optical networks are fast and error free but due to some nonlinearity effects, its performance degrades. The performance of wavelength division multiplexing (WDM) in radio over fiber (RoF) systems is found to be strongly influenced by nonlinearity characteristics inside the fiber. In this paper, we have studied the effect of four wave mixing (FWM) as one of the influential factors in the WD...
متن کاملDynamics of Fiber Optics in Optical Communication Network
This paper presents an overview of the fiber optics and its principles in optical communication network. Fiber nonlinearities are bounded factors for optical communications systems, in specific for wavelength division multiplexing .Among the nonlinearities effect is four-wave mixing ,which is a nonlinear process that generates new frequency components from existing frequency components. FWM is ...
متن کاملPerformance Analysis of WDM Optical Communication System in the Presence of Four Wave Mixing (FWM) Under the Impact of Channel Spacing with Variable Dispersion
Four Wave Mixing (FWM) is the parameter which restricts the transmission distance and bandwidth of optical communication systems. There are various factors which influence FWM, such as channel input power, spacing between channels, dispersion of fiber, operating wavelength and refractive index etc. The nonlinear effects tend to manifest themselves when optical power is very high and become impo...
متن کامل