摘要
文章数值分析了负色散掺铒光纤放大器(EDFA)中基孤子脉冲传输及啁啾特性,给出了一种利用EDFA获得线性啁啾的新方法。数值分析结果发现:增益系数μ1时,基孤子脉冲在EDFA中传输能够获得很好的线性啁啾,并且啁啾的特性受选取的EDFA长度L的影响,L越大时线性啁啾越明显,线性啁啾所占的脉冲区域越窄。最后计算了输出脉冲在啁啾补偿后获得的压缩因子和基座能量比。
The propagation and chirp characteristics of the fundamental soliton pulse in the Erbium-Doped Fiber Amplifier （ED- FA） in the anomalous-dispersion regime are numerically studied and a novel method for achieving linear chirp by using EDFA proposed. The results of the numerical analysis show that good linear chirp is obtained when the gain coefficient μ is far greater than 1 and the chirp characteristics are affected by the length L of the selected EDFA ： the larger the value of L, the more obvi- ous the linear chirp, but the narrower pulse region it takes. Finally, the compression factor and pedestal energy ratio of the output pulse obtained after chirp compensation are calculated.
出处
《光通信研究》
北大核心
2009年第3期38-42,共5页
Study on Optical Communications
基金
重庆市自然科学基金资助项目(2006BB2405)
