摘要
抽运源功率漂移与放大自发辐射(ASE)噪声是导致超荧光光源(SFS)输出功率起伏的主要因素。为了实现SFS功率的稳恒输出,设计了一种新颖的数字模糊控制与模拟比例控制相结合的混合控制器。由于混合控制器对系统内的高频/低频噪声均能够有效抑制,因此SFS输出功率的稳定性得到显著提高。实验结果表明,SFS输出功率的短期稳定度达到±0.032%(±0.0014 dB),长期稳定度达到±0.041%(±0.0018 dB)。
The power drift of pump source and amplified spontaneous emission(ASE) noise are the main factors that result in the fluctuation of output power of superfluorescent fiber source(SFS).In order to obtain a stable output power of the SFS,a novel hybrid controller is designed,which combines the digital fuzzy control with the analog proportional control.Because both the high and low frequency noises can be constrained by the hybrid controller efficiently,the stability of output power of the SFS is clearly improved.The experimental results show that,with the hybrid controller,the short-term stability of output power of the SFS is ±0.032%(±0.0014 dB),and the long-term stability of that is ±0.041%(±0.0018 dB).
出处
《中国激光》
EI
CAS
CSCD
北大核心
2010年第6期1520-1524,共5页
Chinese Journal of Lasers
基金
黑龙江省普通高等学校电子工程重点实验室杰出青年基金(DZZD201003)资助课题
关键词
激光技术
超荧光光源
功率稳定
混合控制器
放大自发辐射
laser technique
superfluorescent source
stabilizing output power
hybrid controller
amplified spontaneous emission