Design and performance evaluation of a 64 × 800 Gbps DWDM free-space optical system with power optimization and signal integrity enhancements
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Anuj Kumar
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Chakresh Kumar
Abstract
This paper describes the design and performance evaluation of a 64 × 800 Gbps DWDM FSO system with a focus on power efficiency and signal integrity. A novel power optimization framework is implemented that ensures real-time power allocation of a signal mitigates signal attenuation based on atmospheric conditions. To reduce crosstalk between channels and to enhance spectral efficiency, a new approach to channel spacing that minimizes nonlinear impairments is incorporated. Furthermore, the system utilizes hybrid optical amplification with an EDFA and Raman amplifiers, which increases the Optical Signal to Noise Ratio (OSNR) and improves transmission distance. The proposed configuration features 64 channels spaced 50 GHz apart and comprises 50 spans in which each span consist of 30 km dispersion-compensating fiber (DCF) and 70 km single-mode fiber (SMF). Also, 64QAM modulation format is employed for mitigating atmospheric turbulence interference and, thus, improving long-term performance reliability. This paper describes the enhancement of the BER and Q-factor to improve the overall signal and noise management, total Optical Power, Power Consumption per Bit, and Spectral Efficiency of the system for further integrity. The proposed study offers a fundamentally strong approach toward ultra-high-speed optical communication in free-space.
Acknowledgments
Authors are grateful to Guru Gobind Singh Indraprastha University, India for providing all valuable support to execute this research work.
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Research ethics: This work is original; no portion of it has been submitted or published prior to this journal submission.
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Informed consent: This research work has proposed a novel approach for high-speed optical communication.
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Author contributions: Every co-author has contributed in a different way to the work. The research work’s layout was created by authors CK, while GK, AK helped write the paper draft, the optical communication system’s program, and the results analysis. Following the completion of the manuscript, all writers have.
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Use of Large Language Models, AI and Machine Learning Tools: None declared.
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Conflict of interest: There is no conflict of interest for this research work.
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Research funding: None declared.
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Data availability: All data included in this study are available upon request by contact with the corresponding author.
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