摘要
设计了基于PID控制技术的高精度激光器温度控制和功率控制模块。激光器驱动电流控制精度为0.1mA,系统温漂小于25mK,实现了泵浦激光器24h波长漂移小于0.02nm。依据遗传算法,采用5波长大功率半导体激光器后向泵浦和100.8km色散位移光纤,实现了带宽为90nm、增益平坦度为0.87dB的拉曼放大。
The high accurate temperature control and power control modular are designed based on PID control technique. The control accurate of laser driver current is 0. lmA. The temperature drift in the thermostat is less than ± 25mK. Within 24 hours, the wavelength shift is less than ± 0.02nm. Based on genetic algorithm, using 5 high power laser diodes respectively, as the multi-pumps, a wideband distributed Raman fiber amplifier （ 1520 to 1610nm） and gain flatness of 0.87dB are obtained based on backward pump scheme and 100.8m DSF.
出处
《光学技术》
EI
CAS
CSCD
北大核心
2007年第6期926-928,931,共4页
Optical Technique
基金
国家自然科学基金资助项目(60677003)
北京市教委共建项目(XK100130637)
关键词
多泵浦
拉曼光纤放大器
PID控制
恒温阱
multi-pumps
Rarnan fiber amplifier
PID oontrol
thermostatic well
