分布式EDFA中受激喇曼散射对光孤子脉冲传输的影响

INFLUENCE OF STIMULATED RAMAN SCATTERING EFFECT ON SOLITON TRANSM1SSION IN D-EDFA

本文用数值方法研究了透明传输下，受激喇曼散射（SRS）对由分布式掺饵光纤放大器（d-EDFA）级联的传输线中传输的光孤子脉冲的泵功率、孤子脉冲平均功率演化、均方根脉宽谱宽积、孤子系统的能量辐射、以及对光孤子传输稳定性的影响．结果表明:SRS降低了系功率，减弱了孤子平均功率起伏，有利于光孤子传输，但也使孤子脉（谱）宽展宽，增大了孤子系统的能量辐射，对孤子传输稳定性产生不良的影响．

In this paper,we study the influence of SRS 0n pump p0wer of transmissi0n system,evensoliton power, pulse width and spectrum width, radiated energy, and their influence 0n stability of soliton transmission. The results show: because of SRS, pump powers decrease, even soliton powerfluctuation becomes small,but pulse width becomes widening,and the radiated energy big.