摘要
针对放大自发辐射噪声引起的信号劣化情形,分析了时钟抽运四波混频光纤再生器的静态和动态功率转移函数(PTF)以及Q因子转移函数(QTF)三者之间的差异,揭示了消光比参数对动态PTF曲线的影响。重点研究了全光再生器的动态PTF和QTF特性,发现仿真结果与实验数据相吻合。研究表明,在给定波长配置和光纤参数下,PTF输出饱和点和QTF最佳工作点所对应的输入光功率相差1dB,且与抽运光功率基本无关。该结论意味着通过测量动态PTF曲线可以获得最佳工作点的信息。
We analyze the differences of static and dynamic power transfer functions （PTFs） and Q-factor transfer function （QTF） for clock pumped four-wave mixing （FWM） fiber regenerators with the optical signal degraded by spontaneous emission noise. The influence of extinction ratio on the dynamic PTF curve is revealed. The dynamic PTF and QTF characteristics of all-optical regenerator are studied emphatically and the simulation results are in good agreement with the experimental data. It is shown that the input optical power corresponding to the PTF＇s output saturation point is larger than that to the QTF＇s optimal operating point by 1 dB for the given wavelength configuration and optical fiber parameters. Besides, the point is basically independent of the pump optical power. This conclusion means that the optimal operating point can be derived by measurement of the corresponding dynamic PTF curves.
作者
卢行
武保剑
万峰
耿勇
邱昆
Lu Hang;Wu Baojian;Wan Feng;Geng Yong;Qiu Kun(Key Laboratory of Optical Fiber Sensing and Communication of the Ministry of Education,University of Electronic Science and Technology of China,Chengdu,Sichuan 611731,China)
出处
《激光与光电子学进展》
CSCD
北大核心
2018年第9期98-102,共5页
Laser & Optoelectronics Progress
基金
国家自然科学基金(61671108
61505021)
关键词
光纤光学
全光再生
四波混频
功率转移函数
Q因子转移函数
fiber optics
all-optical regeneration
four wave mixing
power transfer function
Q-factor transferfunction
