基于鉺鐿共摻納米晶的綠光聚合物光波導放大器研究
發(fā)布時間：2018-07-18 16:11
【摘要】：由于摻鉺光波導放大器（EDWA）中摻雜的鉺離子4I13/2→4I15/2能級輻射對應的波長與光通信網絡的最低損耗通信窗口（常規(guī)波段：1530~1565nm）相匹配，EDWA已經受到越來越多的關注。然而，近年來，塑料光纖異軍突起，其柔韌性好，布線方便、連接容易的優(yōu)勢使塑料光纖在FTTH最后一公里家庭綜合布線中發(fā)揮特殊作用，推動了三網融合的實現，市場前景良好。而在塑料光纖傳輸系統(tǒng)中使用的網絡設備大都是采用650nm、540nm波長的光源，相應的可見光通信器件成為了網絡系統(tǒng)的核心設備。 論文采用高溫法合成了BaLuF5:Yb3+,Er3+納米晶，并對納米晶的晶體結構、形貌和近紅外發(fā)射特性進行了表征及測試。測試結果表明納米晶平均粒徑為13nm，并在1530nm處具有較強的發(fā)射，熒光半高寬為50nm。將合成的納米晶摻雜入SU-8聚合物作為光波導放大器的芯層材料，使用傳統(tǒng)半導體工藝，對聚合物EDWA進行制備。當980nm波長泵浦光功率為280mW、信號光波長為1530nm且功率為0.1mW時，在長度為1.1cm的光波導放大器中，獲得了3.95dB的相對增益。 在980nm泵浦下，鉺鐿共摻納米晶摻雜的聚合物波導放大器產生了很強的綠光上轉換現象。由于近年來可見光通信的快速發(fā)展，，論文首次對基于NaYF4: Yb3+, Er3+納米晶摻雜的聚合物波導放大器在0.54μm波長處的上轉換增益特性進行了理論分析。優(yōu)化后的波導截面尺寸為1μm×1μm，基于原子速率方程與光功率傳輸方程建立了數值模型，當Er3+離子濃度為7.5×1025m-3，信號光功率為0.01mW時，在5cm長的波導上優(yōu)化得到的綠光的最大增益為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.
【學位授予單位】：吉林大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TN722
本文編號：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.
【學位授予單位】：吉林大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TN722
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本文編號：2132445
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