Design of Dynamic Gain Equalizer With H-PDLC Reflection Gratings Doped With Ag Nanoparticles
Design of Dynamic Gain Equalizer With H-PDLC Reflection Gratings Doped With Ag Nanoparticles
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DOI：
10.1109/lpt.2015.2406118
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发表时间：
2015-05
影响因子：
2.6
通讯作者：
Kangni Wang;Jihong Zheng;Yiyang Chen;Qingqing Wang;Kun Gui;S. Zhuang
中科院分区：
文献类型：
--
作者：
Kangni Wang;Jihong Zheng;Yiyang Chen;Qingqing Wang;Kun Gui;S. Zhuang
在这封信中，全息聚合物分散液晶反射光栅掺杂银纳米粒子（NPs）的特性，并与动态增益均衡器的合并报告。实验结果表明，少量银纳米粒子的加入对全息反射光栅产生了显著的影响。光栅的反射效率随着0.2%Ag NP溶液的加入而提高。实验测得掺杂光栅的折射率调制度为4.8 × 10-3。利用光栅的反射波长和电控折射率调制特性，提出并验证了几种基于光栅的级联动态增益均衡器。这些可以与掺铒光纤放大器结合在一起。模拟结果表明，掺铒光纤放大器的典型增益谱的波动范围可以从3.3到0.23 dB。
In this letter, the characteristics of holographic polymer-dispersed liquid crystal reflection gratings doped with Ag nanoparticles (NPs) and their incorporation with dynamic gain equalizers are reported. Experimental results show that the addition of small quantities of Ag NPs causes considerable effects on holographic reflection gratings. Reflection efficiency of gratings improves with the addition of a 0.2% Ag NP solution. Refractive index modulation of doped gratings reached 4.8 × 10-3 experimentally. Taking advantage of reflective wavelength and electrically controlled refractive index modulation of gratings, cascades for several grating-based dynamic gain equalizers were proposed and testified. These can be incorporated with erbium-doped fiber amplifiers. Simulated results show that the fluctuation range of a typical gain spectrum for an erbium-doped fiber amplifier can be reduced from 3.3 to 0.23 dB.