Physical Layer Impairment Model for CO-OFDM System Considering Amplified Spontaneous Emission and Four-wave Mixing
-
Minglei Fu
,
Ke Meng
Abstract
It’s known that different physical impairments can occur in coherent optical orthogonal frequency division multiplexing (CO-OFDM) system. Not only linear impairments but also nonlinear impairments can cause significant signal degradations. It is important to analyze the physical layer impairment (PLI) model which should consider these impairments. In this paper, a new PLI model is developed, where amplified spontaneous emission (ASE) categorized to linear impairments and four-wave mixing (FWM) categorized to nonlinear impairments are regarded as the main noise sources. The performance of developed PLI model in terms of Q factor versus number of subcarriers and Q factor versus fiber length are extensively simulated. Numerical results show that when the OFDM signal passes through fiber link, the noise power expansion occurs. This expansion which is related to the fiber length, number of subcarriers as well as input power, can cause higher degradation in OFDM signal. Through precise analysis, optimum parameters of the transmission system can be chosen. Simulations prove that Q factor of CO-OFDM, whose number of subcarriers is 128, fiber length is 90 km and input power is −2 dBm, is up to abound 10 dB. In addition, in order to verify the developed PLI model, comparisons of the situation with and without considering FWM effects have also been made respectively. Results show that the performance of the model conforms to the actual conditions.
©2015 by De Gruyter
Articles in the same Issue
- Frontmatter
- Effect of Raman Amplifier and Cyclic Prefix on O-OFDM System Using Phase Modulation
- All-Optical Switching in Ultrashort Photonic Crystal Couplers Modified Y-branch Structure
- Nonlinear Phase Shift due to Stimulated Brillouin Scattering in Strong Saturation Regime for Different Types of Fibers
- A Novel Weighted Energy Efficient Routing and Spectrum Assignment Algorithm in Flexible Optical Networks
- Reception of Polarization-Multiplexed QPSK Using Different Receivers with and without Differential Decoding
- RSOA-Based Full-Duplex WDM-PON for 20 Gbps Transmission in Two Channels Over a Long-Haul SMF Using External Modulation Scheme
- Physical Layer Impairment Model for CO-OFDM System Considering Amplified Spontaneous Emission and Four-wave Mixing
- Suppress the FWM by Increasing Channel Spacing and Chromatic Dispersion of Fiber in WDM System
- Performance Analysis of Advanced Modulation Formats at 40 Gbit/s for Single Channel and Multichannel
- Effect of Gain and Noise Figure on DPSK Modulated Long-haul Optical Communication System
- Effect of Optical Amplifiers on the Performance of SCM Radio over Fiber Systems
- New Generation of Optical NoC System with Wireless CDMA Architecture
- Intra-channel Cross-Phase Modulation Effect in Dispersion Compensated Single Channel Lightwave System with Negative Residual Dispersion
- Effect of Different Scattaring Technique on Higher Order Soliton
Articles in the same Issue
- Frontmatter
- Effect of Raman Amplifier and Cyclic Prefix on O-OFDM System Using Phase Modulation
- All-Optical Switching in Ultrashort Photonic Crystal Couplers Modified Y-branch Structure
- Nonlinear Phase Shift due to Stimulated Brillouin Scattering in Strong Saturation Regime for Different Types of Fibers
- A Novel Weighted Energy Efficient Routing and Spectrum Assignment Algorithm in Flexible Optical Networks
- Reception of Polarization-Multiplexed QPSK Using Different Receivers with and without Differential Decoding
- RSOA-Based Full-Duplex WDM-PON for 20 Gbps Transmission in Two Channels Over a Long-Haul SMF Using External Modulation Scheme
- Physical Layer Impairment Model for CO-OFDM System Considering Amplified Spontaneous Emission and Four-wave Mixing
- Suppress the FWM by Increasing Channel Spacing and Chromatic Dispersion of Fiber in WDM System
- Performance Analysis of Advanced Modulation Formats at 40 Gbit/s for Single Channel and Multichannel
- Effect of Gain and Noise Figure on DPSK Modulated Long-haul Optical Communication System
- Effect of Optical Amplifiers on the Performance of SCM Radio over Fiber Systems
- New Generation of Optical NoC System with Wireless CDMA Architecture
- Intra-channel Cross-Phase Modulation Effect in Dispersion Compensated Single Channel Lightwave System with Negative Residual Dispersion
- Effect of Different Scattaring Technique on Higher Order Soliton
