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对垂直双抽运结构的偏振复用信号在半导体光放大器(SOA)中的全光波长变换(AOWC)进行了研究。理论分析了激光器线宽对此系统性能的影响,仿真研究了偏振复用-正交频分复用(PM-OFDM)信号在此系统中传输的性能。仿真结果显示,当系统的光信噪比为10dB时,10Gbit/s的PM-OFDM信号经过SOA中的四波混频效应后,在接收端能够实现无串扰偏振不敏感PM信号的接收,其中x和y方向对应的系统误码率分别为1.16×10-4和1.06×10-5。仿真结果表明激光器线宽,OFDM信号的子载波个数,信道功率,以及OFDM调制格式均与系统波长转换效率有关,且仿真结果与理论推导结果一致。
The research on the AOGC of the polarization multiplexed signal of a vertical double-pumping structure in a semiconductor optical amplifier (SOA) is carried out. The influence of laser linewidth on the performance of the system is analyzed theoretically, and the performance of polarization multiplexing-OFDM (Orthogonal Frequency Division Multiplexing) transmission in this system is simulated. The simulation results show that when the optical signal to noise ratio of the system is 10dB, 10Gbit / s PM-OFDM signal can pass through the four-wave mixing effect in SOA and receive the crosstalk-insensitive PM signal at the receiving end The systematic error rates corresponding to the x and y directions are 1.16 × 10-4 and 1.06 × 10-5, respectively. The simulation results show that the laser linewidth, the number of OFDM subcarriers, the channel power and the OFDM modulation format are related to the wavelength conversion efficiency of the system, and the simulation results are consistent with the theoretical results.