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The Coherent Optical Orthogonal Frequency Division Multiplexing (CO-OFDM) modulation technique plays a crucial role in advancing fiber optic communication. While optical communication offers numerous advantages over wireless alternatives, one drawback is the emergence of nonlinearities at high input power levels in fiber optic systems. Consequently, analyzing system performance concerning power levels is essential for enhancing system functionality and selecting appropriate modulation techniques. This paper focuses on evaluating a dual-port CO-OFDM modulation technique utilizing Single-Mode Fiber (SMF). It uses Quadrature Phase Shift Keying) and 16 QAM (Quadrature Amplitude Modulation (QPSK) for port 1 and port 2 respectively as subcarrier modulation. Performance assessment is conducted across various input power levels, revealing performance degradation beyond 10 dBm.

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Analysis of Fiber Impairments in SMF Due to Laser Power in Dual Port QPSK-16QAM CO-OFDM Modulation System

  • 会议论文

  • 发表日期：

    2025年

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  • Vikas Kaushik,
  • Himanshi Saini

摘要

The Coherent Optical Orthogonal Frequency Division Multiplexing (CO-OFDM) modulation technique plays a crucial role in advancing fiber optic communication. While optical communication offers numerous advantages over wireless alternatives, one drawback is the emergence of nonlinearities at high input power levels in fiber optic systems. Consequently, analyzing system performance concerning power levels is essential for enhancing system functionality and selecting appropriate modulation techniques. This paper focuses on evaluating a dual-port CO-OFDM modulation technique utilizing Single-Mode Fiber (SMF). It uses Quadrature Phase Shift Keying) and 16 QAM (Quadrature Amplitude Modulation (QPSK) for port 1 and port 2 respectively as subcarrier modulation. Performance assessment is conducted across various input power levels, revealing performance degradation beyond 10 dBm.