多波长泵浦宽带拉曼放大器功率增益的Lorentz近似研究  

Investigating the Gain of Multi-pumping Broadband Raman Amplifier by Lorentz Approximation

作　　者：王智[1] 简水生[1] 

机构地区：[1]北方交通大学光波所,北京100044

出　　处：《光电子．激光》2001年第8期816-820,共5页Journal of Optoelectronics·Laser

基　　金：北方交通大学攀登基金资助项目 ( PD88)

摘　　要：本文采用 L orentz线型近似 ,研究了多波长泵浦宽带 Raman放大器的增益特性 ,并提出了宽带增益平坦的多波长泵浦方案。研究结果表明 ,增益平坦程度与泵浦波的频率间隔密切相关。对 ITU - T的G.6 5 2、G.6 5 3及 G.6 5 5光纤和新型的大有效面积非零色散平坦光纤的 Raman放大增益特性研究表明 ,Raman增益与光纤的种类和光纤传输特性有关 。In this article,we use Lorentz approximation to investigate the gain properties of multi pumping broadband Raman amplifier,and present some schemes for flattening the gain.All the results show that the flatness of the gain spectrum is closely related to the pumping frequency grid.Researching the gain properties of Raman amplifiers of such ITU T fibers as G.652,G.653,G.655 and large effective area non zero dispersion flattening fiber(LEA NZ DFF),we got that the Raman gain is associated with the fiber type and its transmission characteristics,especially decreasing with the effective core area increasing.

关 键 词：宽带拉曼放大器 功率增益 多波长泵浦 Lorentz线型 

分 类 号：TN245[电子电信—物理电子学] TN722