本文選題：微球諧振腔　切入點(diǎn)：回廊模式　出處：《寧波大學(xué)》2017年碩士論文

【摘要】：近年來(lái),回廊模(Whispering-Gallery Mode,WGM)特性光學(xué)微球腔因具有高品質(zhì)因數(shù)(Q-factor)、極小的模式體積(Vm)、窄線(xiàn)寬等優(yōu)點(diǎn),吸引了眾多學(xué)者的研究興趣。同時(shí),微球腔體積極小,腔內(nèi)能量密度極高,并且其光學(xué)性能優(yōu)良,制備方法簡(jiǎn)單方便,易于與其他器件集成�；谝陨蟽�(yōu)良特性,光學(xué)微球腔在低閾值激光器、非線(xiàn)性光學(xué)、腔量子電動(dòng)力學(xué)、高靈敏度傳感器和窄帶濾波器等諸多領(lǐng)域都有非常大的應(yīng)用潛力。本論文主要研究無(wú)源和Tm~(3+)摻雜有源硫系玻璃微球腔的制備及其回廊模式的表征。硫系玻璃作為一種新型紅外光功能玻璃,具有較寬的紅外透過(guò)窗口(透過(guò)范圍0.5~25μm)、較高的紅外光譜透過(guò)特性(透過(guò)率大于60%)、極高的線(xiàn)性與非線(xiàn)性折射率(n1=2.0~3.5,n2=2.0~20×10~(-18) m~2/W)以及極低的聲子能量(小于350 cm-1)等特點(diǎn)。因此,本論文圍繞硫系玻璃微球諧振腔的制備工藝與相關(guān)光學(xué)特性進(jìn)行深入研究,其詳細(xì)內(nèi)容如下:論文第一章為緒論,主要介紹了回廊模式微腔尤其是玻璃微球腔的國(guó)內(nèi)外研究現(xiàn)狀和近幾年來(lái)的重點(diǎn)應(yīng)用領(lǐng)域。然后提出了本論文的研究?jī)?nèi)容為無(wú)源和有源Tm~(3+)摻雜硫系玻璃微球的制備及表征,本章最后介紹了本論文工作的內(nèi)容和意義。論文第二章為微球腔基礎(chǔ)理論介紹。從麥克斯韋方程組出發(fā),對(duì)微球諧振腔中的回廊模式場(chǎng)解進(jìn)行了分析,進(jìn)一步得到模式的特征方程、解析表達(dá)式以及描述某一模式的四個(gè)特征量。最后介紹了光在光纖錐中的傳播及微球腔與光纖錐的耦合系統(tǒng)。論文第三章為全部實(shí)驗(yàn)流程介紹部分。首先介紹了硫系玻璃的制備方法和流程,并在此基礎(chǔ)上介紹了玻璃微球諧振腔的制備過(guò)程。然后對(duì)石英光纖錐的制備裝置,制備過(guò)程進(jìn)行了闡述,通過(guò)裝置改進(jìn)得到了實(shí)驗(yàn)要求的光纖錐。最后介紹了微球諧振腔與石英光纖錐耦合測(cè)試系統(tǒng)。論文第四章重點(diǎn)介紹無(wú)源Ge_(28)Sb_(12)Se_(60)(簡(jiǎn)稱(chēng)Ge_(28))硫系玻璃微球諧振腔特性研究。首先介紹了Ge_(28)樣品玻璃的制備及其性能測(cè)試。然后介紹了Ge_(28)玻璃微球的制備結(jié)果,從中可以看到我們制備的Ge_(28)微球腔具有良好的球形度和表面光潔度。接著介紹了Ge_(28)微球腔與石英光纖錐的耦合測(cè)試過(guò)程,成功得到其光學(xué)回廊模光譜并對(duì)其特性進(jìn)行分析。最后是對(duì)Ge_(28)微球腔的Q值進(jìn)行測(cè)試分析。得到微球在1544.86 nm處的品質(zhì)因數(shù)Q≈1.717×104。論文第五章主要是對(duì)Tm~(3+)摻雜Ge-Ga-S玻璃微球諧振腔特性的研究。首先介紹了制備Tm~(3+)摻雜Ge-Ga-S基質(zhì)玻璃的過(guò)程,然后介紹了玻璃樣品的相關(guān)性能測(cè)試并利用已有基質(zhì)玻璃制備了Tm~(3+)摻雜Ge-Ga-S玻璃微球腔。最后是Tm~(3+)摻雜Ge-Ga-S玻璃微球腔與石英光纖錐的耦合系統(tǒng)搭建、熒光回廊模特性分析以及Q值測(cè)試分析。論文第六章為本論文總結(jié)部分,提出了研究過(guò)程中存在的問(wèn)題以及在日后的工作中需要進(jìn)一步探討的地方。
[Abstract]:In recent years, the characteristic optical microsphere cavity of Whispering-Gallery mode WGMhas attracted the research interest of many scholars because of its advantages of high quality factor (Q-factor), very small mode volume, narrow linewidth, etc. At the same time, the microsphere cavity is active and has a very high energy density. And its optical properties are excellent, the preparation method is simple and convenient, and it is easy to integrate with other devices. Based on the above excellent properties, the optical microsphere cavity is used in low threshold laser, nonlinear optics, cavity quantum electrodynamics, High sensitivity sensors and narrow band filters have great potential applications. In this thesis, the preparation and characterization of passive and Tm~(3 doped active sulfur glass microspheres are studied. Is a new type of infrared functional glass. It has the characteristics of wide infrared transmission window (transmission range of 0.5 ~ 25 渭 m), high infrared spectral transmission characteristics (transmittance greater than 60 ~ (-1), extremely high linear and nonlinear refractive index (n ~ (1)) 2. 0 ~ (3. 5) n ~ (2) N ~ (2) 2 ~ (20) 脳 10 ~ (10) ~ (-18)) and very low phonon energy (less than 350 cm ~ (-1)). In this paper, the fabrication technology and optical properties of the sulfur glass microsphere resonator are studied in detail as follows: the first chapter is the introduction. In this paper, the research status of corridor mode microcavity, especially glass microsphere cavity, and its application in recent years are introduced. Then, the preparation and characterization of sulfur doped glass microspheres with passive and active Tm~(3 are presented in this paper. In the second chapter, the basic theory of microsphere cavity is introduced. Based on Maxwell's equations, the solution of corridor mode field in microsphere resonator is analyzed. Further, the characteristic equation of the model is obtained. The analytical expression and the four characteristic quantities describing a certain mode are given. Finally, the propagation of light in the fiber cone and the coupling system between the microsphere cavity and the fiber cone are introduced. Preparation method and process of Sulphur glasses, On this basis, the fabrication process of glass microsphere resonator is introduced. The experimental requirements of optical fiber cones are obtained through the improvement of the device. Finally, the measurement system of coupling of microsphere resonator and quartz fiber cone is introduced. In chapter 4, the characteristics of passive GeN28 / SbSbS / SbSZ / S / S / S / S / S / S / S / S / S / S / S / S microsphere cavity are mainly introduced in this paper, and the characteristics of the resonant cavity of the S / S glass microspheres are also studied. In this paper, the preparation and performance test of GeStat 28) glass are introduced, and the results of the preparation of GeStat 28 glass microspheres are introduced. It can be seen that the microsphere cavity prepared by us has good sphericity and surface finish. Then, the coupling test process between the microsphere cavity and the quartz fiber cone is introduced. Finally, the Q value of the microsphere cavity was measured and analyzed. The quality factor of the microsphere at 1544.86 nm was obtained, Q 鈮，

本文編號(hào)：1661998