本文選題：光波導(dǎo)放大器 + 聚合物�。� 參考：《吉林大學(xué)》2015年碩士論文

【摘要】：光放大器因其在全光中繼中的重要作用而成為研究熱點，與半導(dǎo)體激光放大器、光纖放大器相比，光波導(dǎo)放大器以小型化，結(jié)構(gòu)緊湊且易與其他光波導(dǎo)器件集成等優(yōu)勢成為頗具研究前景的光放大器。摻鉺聚合物光波導(dǎo)放大器同時具備了鉺離子在1.55μm通信波段光放大特性和聚合物材料折射率易調(diào)節(jié)、工藝簡單、成本低等兩大優(yōu)勢，具有重要的研究意義。 本文利用高溫?zé)岱纸夥ê铣闪艘环N表面油酸修飾的NaLuF4:Er3+,Yb3+納米晶，透射電鏡照片顯示納米晶的粒徑尺寸約為15nm，納米晶在980nm波長泵浦光激發(fā)下的近紅外發(fā)射光譜顯示材料在1535nm有較強(qiáng)的發(fā)射。本文首次將NaLuF4:Er3+,Yb3+納米晶通過物理摻雜方式摻雜在SU-82005光刻膠中，作為聚合物光波導(dǎo)放大器的有源芯層。利用光刻、顯影等工藝制備了矩形結(jié)構(gòu)的光波導(dǎo)放大器，當(dāng)1535nm波長信號光輸入功率為0.1mW，980nm波長泵浦光輸入功率為220mW時，在長度為1.8cm的器件上，獲得了2.1dB的相對增益。 為了避免納米粒子在聚合物基質(zhì)中物理摻雜導(dǎo)致的團(tuán)聚現(xiàn)象，增大納米粒子在聚合物中的摻雜濃度，提高聚合物光波導(dǎo)放大器的增益及穩(wěn)定性，我們首次利用NaYF4:Er3+,Yb3+納米粒子表面修飾層的不飽和官能團(tuán)與甲基丙烯酸甲酯（MMA）共價鍵合，合成了一種新型NaYF4: Er3+, Yb3+NPs-PMMA納米復(fù)合材料，用其作為波導(dǎo)有源芯層材料，，設(shè)計并制備了具有倒脊型結(jié)構(gòu)的光波導(dǎo)放大器。性能測試結(jié)果顯示，當(dāng)980nm波長泵浦光功率為400mW，1535nm信號光功率為0.14mW時，在長度為1.5cm的光波導(dǎo)放大器上獲得了最大7.6dB的相對增益，并分析討論了信號光波長和信號光功率對器件相對增益的影響。
[Abstract]:Optical amplifiers (OPA) have become a research hotspot because of their important role in all-optical relay. Compared with semiconductor laser amplifiers and fiber amplifiers, optical waveguide amplifiers are miniaturized. Compact structure and easy integration with other optical waveguide devices have become promising optical amplifiers. Erbium-doped polymer optical waveguide amplifiers have the advantages of erbium ion optical amplification at 1.55 渭 m and refractive index of polymer materials easy to adjust, simple process and low cost. In this paper, a surface oleic acid modified NaLuF4:Er3 Yb 3 nanocrystalline was synthesized by high temperature thermal decomposition. Transmission electron microscope (TEM) photos show that the size of nanocrystalline is about 15nm.The near infrared emission spectrum of nanocrystalline excited by 980nm wavelength pump light has strong emission in 1535nm. In this paper, NaLuF4:Er3 Yb _ 3 nanocrystalline is first doped in SU-82005 photoresist by physical doping, which is used as the active core layer of polymer optical waveguide amplifier. Optical waveguide amplifiers with rectangular structure have been fabricated by photolithography and development techniques. When the input power of the 1535nm wavelength signal is 0.1mWN 980nm pump light input power is 220mW, the relative gain of 2.1dB is obtained on the device with length 1.8cm. In order to avoid the agglomeration caused by physical doping of nanoparticles in polymer matrix, increase the doping concentration of nanoparticles in polymer, improve the gain and stability of polymer optical waveguide amplifier. For the first time, a novel NaYF4: Er3, Yb3 NPs-PMMA nanocomposite was synthesized by covalently bonding the unsaturated functional group of the surface modification layer of NaYF4:Er3 Yb3 nanoparticles with methyl methacrylate (MMA), which was used as a waveguide active core layer material. An optical waveguide amplifier with inverted ridge structure is designed and fabricated. The performance test results show that when the pump power of 980nm wavelength is 400mWN 1535nm signal optical power is 0.14mW, the maximum relative gain of 7.6dB is obtained in the optical waveguide amplifier with length of 1.5cm. The effects of signal wavelength and signal optical power on the relative gain of the device are analyzed and discussed.
【學(xué)位授予單位】：吉林大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TN722

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本文編號：1822022