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Published on: February 6, 2014
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Semiconductor Optical Amplifier (SOA)-Driven Reservoir Computing for Dense Wavelength-Division Multiplexing (DWDM)
Yinke Yang1, Huiwen Luo1, Rui Zhang1
1Key Lab of Optical Fiber Sensing and Communication Networks, Ministry of Education, School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China.
Sensors (Basel, Switzerland)
|July 8, 2023
Summary
This study introduces a novel reservoir computing (RC) optical signal processing (OSP) scheme using a semiconductor optical amplifier (SOA) to effectively process both incoherent and coherent signals in optical fiber communication systems.
Area of Science:
- Optical communication systems
- Nonlinear optics
- Signal processing
Background:
- Modern optical fiber communication systems require advanced optical signal processing (OSP) for various modulation formats.
- Compatibility between incoherent and coherent signals is a challenge in OSP, particularly in access and metro networks.
Purpose of the Study:
- To propose and investigate a reservoir computing (RC)-OSP scheme for compatible processing of non-return-to-zero (NRZ) and differential quadrature phase-shift keying (DQPSK) signals.
- To optimize the semiconductor optical amplifier (SOA)-based RC parameters for enhanced compensation performance.
Main Methods:
- Developed an RC-OSP scheme leveraging the nonlinear mapping properties of a semiconductor optical amplifier (SOA).
- Simulated the performance of the SOA-based RC for processing NRZ and DQPSK signals in a nonlinear dense wavelength-division multiplexing (DWDM) channel.
- Optimized key SOA-based RC parameters to improve signal compensation.
Main Results:
- Achieved a significant signal quality improvement exceeding 10 dB for both NRZ and DQPSK signals compared to distorted signals.
- Demonstrated the effectiveness of the optimized SOA-based RC in a simulated nonlinear DWDM environment.
- Validated the compensation performance for mixed signal types.
Conclusions:
- The proposed SOA-based RC scheme offers a viable solution for compatible optical signal processing in complex optical networks.
- This technology could be a valuable component for optical switching nodes handling diverse signal formats.
- The findings pave the way for more robust and versatile optical communication systems.
