项目来源
国家重点研发计划(NKRD)
项目主持人
周时凤
项目受资助机构
华南理工大学
项目编号
2020YFB1805901
立项年度
2020
立项时间
未公开
研究期限
未知 / 未知
项目级别
国家级
受资助金额
470.00万元
学科
宽带通信和新型网络
学科代码
未公开
基金类别
未公开
关键词
多材料有源体系 ; 效率 ; 串扰 ; 光放大器 ; Multi-Material Active System ; Efficiency ; crosstalk ; Optical Amplifier
参与者
邱建荣；黄冬梅
参与机构
浙江大学；香港理工大学深圳研究院
项目标书摘要：本年度课题主要开展了影响全波段光放大器带宽、噪声、效率的物理机制研究。研制了两种Te激活的宽带增益介质，提出了用于宽带光放大的掺Te玻璃光纤的团簇工程策略，将其光谱拓展到短波红外区域。通过调整玻璃中的团簇演化来原位生成和稳定Te团簇的策略，研制了一种新型的发光位于短波近红外区的掺Te硼酸盐玻璃，弥补了在该波段缺少宽带增益材料的缺陷。_x000D_围绕新型掺饵光纤放大器噪声开展了理论仿真研究，基于速率方程和非线性薛定谔传输方程推导建立光纤放大器模型，利用matlab平台完成模型仿真详细分析了掺铒光纤放大器的增益饱和机制对激光器的相对噪声强度的抑制规律。基于铋掺杂多组分玻璃，开展了影响光放大器的效率研究。研究了金属离子种类和掺杂量对铋掺杂硅酸盐玻璃的近红外发光的影响。通过研究热性能和光学响应之间的关系，探究了Bi在玻璃基体中的失活机理，成功地制备了具有高Bi掺杂水平(0.05mol%)的多组分锗酸盐玻璃光纤，并首次在该光纤中实现了宽带增益，成功构建了一种用于宽带光放大的小型光纤放大器。此外，还建立了实现O波段光放大的掺Bi光纤的理论模型，对O波段的增益谱进行了数值模拟，根据信号波长范围、能级结构、电子跃迁过程设计了泵浦波长，建立速率方程和功率传输方程，从理论上验证了后续研究方向掺杂铋宽带光纤放大器发展的可行性。
Application Abstract: This year's research focuses on the physical mechanisms that affect the bandwidth,noise and efficiency of all-band optical amplifiers.Two kinds of Te activated wideband gain media are developed,and the cluster engineering strategy of Te doped glass fiber for wideband optical amplification is proposed,and its spectrum is extended to the short-wave infrared region.By adjusting the evolution of clusters in the glass to generate and stabilize Te clusters in situ,a new type of Te borate doped glass whose luminescence is located in the short wave near infrared region is developed to make up for the lack of wideband gain materials in this band.Theoretical simulation research was carried out around the noise of a new type of bait-doped fiber amplifier,and a fiber amplifier model was established based on the rate equation and nonlinear Schrodinger transmission equation.The model simulation was completed with matlab platform,and the suppression rule of erbium-doped fiber amplifier's gain saturation mechanism on the relative noise intensity of the laser was analyzed in detail.Based on bismuth-doped multi-component glass,the effect on the efficiency of optical amplifier is studied.The effect of metal ion type and doping amount on near infrared luminescence of bismuth-doped silicate glass was studied.By studying the relationship between thermal properties and optical response,the deactivation mechanism of Bi in glass matrix was investigated.A multi-component germanate glass fiber with high Bi doping level(0.05mol%)was successfully prepared,and broadband gain was achieved for the first time in the fiber,and a small fiber amplifier for broadband optical amplification was successfully constructed.In addition,a theoretical model of Bi doped fiber for O-band optical amplification is established,and the gain spectrum of O-band is numerically simulated.The pump wavelength is designed according to the wavelength range of signal,energy level structure and electronic transition process,and the rate equation and power transmission equation are established,which theoretically verifies the feasibility of the development of bismuth-doped broadband fiber amplifier in the future research direction.
项目受资助省
广东省
