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Updated: May 13, 2026
09:43
Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
Published on: March 20, 2017
Nonlinear performance of multi-granularity orthogonal transmission systems with frequency division multiplexing
Fan Zhang1, Chuanchuan Yang, Xi Fang
1The state key laboratory of advanced optical communication systems & networks, Peking University, Beijing 100871, China. fzhang@pku.edu.cn
Optics Express
|March 14, 2013
Summary
This study compares coherent optical orthogonal frequency division multiplexing (OFDM) and single-carrier frequency division multiplexing (SCFDM) for next-generation optical networks. It analyzes performance, focusing on fiber Kerr nonlinearity impacts for advanced ultra-dense wavelength division multiplexing (UDWDM) systems.
Area of Science:
- Optical Communications
- Signal Processing
Background:
- Next-generation optical communication systems require advanced multiplexing techniques for higher capacity and flexibility.
- Orthogonal frequency division multiplexing (OFDM) and its variants are key technologies for efficient spectral utilization.
Purpose of the Study:
- To compare coherent optical orthogonal frequency division multiplexing (OFDM) and single-carrier frequency division multiplexing (SCFDM) schemes.
- To investigate the feasibility of multi-granularity transmission using ultra-dense wavelength division multiplexing (UDWDM) based on orthogonal techniques.
- To analyze system performance degradations caused by fiber Kerr nonlinearity in uncompensated standard single-mode fiber (SSMF) links.
Main Methods:
- Numerical simulation of coherent optical OFDM and SCFDM systems.
- Integration with polarization-division multiplexing and quadrature phase shift keying (QPSK) or 16-quadrature amplitude modulation (16-QAM) formats.
- Analysis of nonlinear propagation effects in SSMF links with lumped amplification.
Main Results:
- Performance comparison between OFDM and SCFDM schemes under various modulation formats.
- Evaluation of transmission reach and fiber capacity for different spectral efficiencies.
- Quantification of performance degradations due to fiber Kerr nonlinearity.
Conclusions:
- Orthogonal transmission techniques enable flexible bandwidth allocation for advanced optical networks.
- Fiber Kerr nonlinearity significantly impacts system performance, limiting transmission reach and capacity.
- The study provides insights into optimizing UDWDM systems for future high-capacity optical communications.
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