ICF驱动器光纤前端系统偏振控制技术
Polarization control technology of fiber front-end system in ICF driver
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摘要: 针对ICF驱动器对光纤前端系统输出光脉冲的质量及稳定性要求，通过实验分析了光纤系统的偏振特性，实验探索了不同的偏振控制技术。并针对系统窄光谱（pm级）、短脉冲（ns级）的特点以及系统末级输出对时间特性的要求，采用空间平均的退偏振方式，能有效实现光信号的完全退偏。光纤系统增加退偏器后输出稳定性达到了1.72%，大大提高了系统输出的稳定性。Abstract: To meet the requirement on the quality and the stability of the output pulse from the fiber front-end system in ICF driver, the polarization characteristics of the fiber system have been analyzed and different polarization control technologies have been researched by the experiments. For the narrow spectral width (several pm) and short pulse (several ns) of the system, considering the requirement on the time character in the final output of the system, the special average depolarization has been adopted. As a result, the complete depolarization of the light signal can be realized efficiently and the stability of the system with the depolarizer achieves 1.72% .
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Key words:
- optical devices /
- polarization control /
- depolarizer /
- front-end /
- fiber system /
- icf
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