基于铒镱共掺纳米晶的绿光聚合物光波导放大器研究
发布时间：2018-07-18 16:11
【摘要】：由于掺铒光波导放大器（EDWA）中掺杂的铒离子4I13/2→4I15/2能级辐射对应的波长与光通信网络的最低损耗通信窗口（常规波段：1530~1565nm）相匹配，EDWA已经受到越来越多的关注。然而，近年来，塑料光纤异军突起，其柔韧性好，布线方便、连接容易的优势使塑料光纤在FTTH最后一公里家庭综合布线中发挥特殊作用，推动了三网融合的实现，市场前景良好。而在塑料光纤传输系统中使用的网络设备大都是采用650nm、540nm波长的光源，相应的可见光通信器件成为了网络系统的核心设备。 论文采用高温法合成了BaLuF5:Yb3+,Er3+纳米晶，并对纳米晶的晶体结构、形貌和近红外发射特性进行了表征及测试。测试结果表明纳米晶平均粒径为13nm，并在1530nm处具有较强的发射，荧光半高宽为50nm。将合成的纳米晶掺杂入SU-8聚合物作为光波导放大器的芯层材料，使用传统半导体工艺，对聚合物EDWA进行制备。当980nm波长泵浦光功率为280mW、信号光波长为1530nm且功率为0.1mW时，在长度为1.1cm的光波导放大器中，获得了3.95dB的相对增益。 在980nm泵浦下，铒镱共掺纳米晶掺杂的聚合物波导放大器产生了很强的绿光上转换现象。由于近年来可见光通信的快速发展，，论文首次对基于NaYF4: Yb3+, Er3+纳米晶掺杂的聚合物波导放大器在0.54μm波长处的上转换增益特性进行了理论分析。优化后的波导截面尺寸为1μm×1μm，基于原子速率方程与光功率传输方程建立了数值模型，当Er3+离子浓度为7.5×1025m-3，信号光功率为0.01mW时，在5cm长的波导上优化得到的绿光的最大增益为4.3dB。
[Abstract]:Due to the wavelength corresponding to erbium-doped 4I13 / 2 4I15 / 2 energy level radiation in erbium-doped optical waveguide amplifiers (EDWA) matching with the lowest loss communication window (conventional band: 1530nm 1565nm) EDWA has attracted more and more attention. However, in recent years, plastic fiber has become a new force, with the advantages of good flexibility, convenient wiring and easy connection, which makes plastic fiber play a special role in the integrated wiring of the last kilometer of FTTH, and promotes the realization of the integration of three networks. The market outlook is good. However, most of the network equipments used in the plastic fiber transmission system are light sources with wavelength of 650 nm or 540 nm. The corresponding visible light communication devices have become the core equipment of the network system. BaLuF 5: Yb 3 er 3 nanocrystals were synthesized by high temperature method. The crystal structure, morphology and near infrared emission characteristics of the nanocrystals were characterized and tested. The results show that the average particle size of the nanocrystalline is 13 nm and the fluorescence half-width is 50 nm with a strong emission at 1530nm. The synthesized nanocrystalline was doped into SU-8 polymer as the core material of optical waveguide amplifier. The polymer Edwa was prepared by traditional semiconductor technology. When the pump power of 980nm wavelength is 280 MW, the signal wavelength is 1530nm and the power is 0.1 MW, the relative gain of 3.95 dB is obtained in the optical waveguide amplifier with the length of 1.1cm. Under the pump of 980nm, the polymer waveguide amplifiers doped with erbium and ytterbium co-doped nanocrystals produce a strong green up-conversion phenomenon. Due to the rapid development of visible light communication in recent years, the upconversion gain characteristics of polymer waveguide amplifiers doped with NaYF4: Yb3, Er3 nanocrystalline at the wavelength of 0.54 渭 m have been theoretically analyzed for the first time. The optimized waveguide cross section size is 1 渭 m 脳 1 渭 m. The numerical model is established based on the atomic rate equation and optical power transmission equation. When the concentration of er 3 ion is 7.5 脳 10 25 m -3 and the signal power is 0.01 MW, the maximum gain of green light is 4.3 dB on the long 5cm waveguide.
【学位授予单位】：吉林大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN722
本文编号：2132445
[Abstract]:Due to the wavelength corresponding to erbium-doped 4I13 / 2 4I15 / 2 energy level radiation in erbium-doped optical waveguide amplifiers (EDWA) matching with the lowest loss communication window (conventional band: 1530nm 1565nm) EDWA has attracted more and more attention. However, in recent years, plastic fiber has become a new force, with the advantages of good flexibility, convenient wiring and easy connection, which makes plastic fiber play a special role in the integrated wiring of the last kilometer of FTTH, and promotes the realization of the integration of three networks. The market outlook is good. However, most of the network equipments used in the plastic fiber transmission system are light sources with wavelength of 650 nm or 540 nm. The corresponding visible light communication devices have become the core equipment of the network system. BaLuF 5: Yb 3 er 3 nanocrystals were synthesized by high temperature method. The crystal structure, morphology and near infrared emission characteristics of the nanocrystals were characterized and tested. The results show that the average particle size of the nanocrystalline is 13 nm and the fluorescence half-width is 50 nm with a strong emission at 1530nm. The synthesized nanocrystalline was doped into SU-8 polymer as the core material of optical waveguide amplifier. The polymer Edwa was prepared by traditional semiconductor technology. When the pump power of 980nm wavelength is 280 MW, the signal wavelength is 1530nm and the power is 0.1 MW, the relative gain of 3.95 dB is obtained in the optical waveguide amplifier with the length of 1.1cm. Under the pump of 980nm, the polymer waveguide amplifiers doped with erbium and ytterbium co-doped nanocrystals produce a strong green up-conversion phenomenon. Due to the rapid development of visible light communication in recent years, the upconversion gain characteristics of polymer waveguide amplifiers doped with NaYF4: Yb3, Er3 nanocrystalline at the wavelength of 0.54 渭 m have been theoretically analyzed for the first time. The optimized waveguide cross section size is 1 渭 m 脳 1 渭 m. The numerical model is established based on the atomic rate equation and optical power transmission equation. When the concentration of er 3 ion is 7.5 脳 10 25 m -3 and the signal power is 0.01 MW, the maximum gain of green light is 4.3 dB on the long 5cm waveguide.
【学位授予单位】：吉林大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN722
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本文编号：2132445
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