本文選題：微環(huán)諧振器 + 波導(dǎo)��； 參考：《蘭州交通大學(xué)》2015年碩士論文

【摘要】：隨著科技的發(fā)展,人們對(duì)信息處理的要求越來越高,電互連由于客觀條件的限制并不能滿足人們的需求,光互連憑借其優(yōu)勢走上了歷史舞臺(tái),逐步成為廣大科研工作者的研究熱點(diǎn)。微環(huán)諧振器作為光器件的代表之一得到了國內(nèi)外的科研機(jī)構(gòu)的重視,在近年取得了較為不俗的成績。由于基于微環(huán)諧振器的光路由器、導(dǎo)向邏輯器件、濾波器等光器件層出不窮,故對(duì)微環(huán)諧振器的耦合和特性進(jìn)行分析研究就顯得十分重要。本論文通過研究微環(huán)諧振器的輸出特性以及波導(dǎo)間的耦合,分析出器件結(jié)構(gòu)參數(shù)與輸出特性之間的關(guān)系,并提取出更為準(zhǔn)確的耦合系數(shù)；借由模擬“鼎”形微環(huán)諧振器的輸出圖譜,提取出相應(yīng)的器件結(jié)構(gòu)參數(shù)。開展的主要工作及主要成果有：(1)研究微環(huán)諧振器的基本理論,分析基本元件的物理模型,并論述了分析微環(huán)諧振器的方法。定向耦合器以及傳輸線是微環(huán)諧振器的基本元件,通過定向耦合器以及傳輸線的傳輸矩陣,可以描述出微環(huán)諧振器的傳輸特性。(2)分析微環(huán)諧振器器件的輸出特性。在研究微環(huán)諧振器的基本模型以及工作原理的基礎(chǔ)上,對(duì)單環(huán)單波導(dǎo)結(jié)構(gòu)微環(huán)諧振器、單環(huán)雙波導(dǎo)結(jié)構(gòu)微環(huán)諧振器以及級(jí)聯(lián)微環(huán)諧振器進(jìn)行數(shù)值模擬,對(duì)微環(huán)半徑、耦合系數(shù)、環(huán)程透射系數(shù)、環(huán)間距等主要器件參數(shù)對(duì)器件輸出特性的影響進(jìn)行分析。(3)運(yùn)用耦合模理論與傳輸矩陣法相結(jié)合的研究方法對(duì)直波導(dǎo)間的耦合以及彎波導(dǎo)間的耦合進(jìn)行模擬分析。在此過程中,明確了波導(dǎo)結(jié)構(gòu)參數(shù)與波導(dǎo)耦合效率之間的關(guān)系,指出了波導(dǎo)間距、波導(dǎo)彎曲半徑以及耦合系數(shù)三者之間的關(guān)系。(4)對(duì)“鼎”形微環(huán)諧振器進(jìn)行數(shù)值模擬。本論文從該器件的工作原理入手對(duì)器件進(jìn)行建模。通過已給出的數(shù)值范圍,對(duì)器件的輸出特性進(jìn)行粗略模擬,再利用主要器件參數(shù)、結(jié)構(gòu)參數(shù)與器件輸出特性之間的關(guān)系,對(duì)數(shù)值模擬過程中的器件結(jié)構(gòu)參數(shù)進(jìn)行微調(diào),使器件模擬輸出譜圖不斷逼近器件實(shí)驗(yàn)結(jié)果,最后提取出器件的主要結(jié)構(gòu)參數(shù)。通過本論文的工作,得到了器件結(jié)構(gòu)參數(shù)與輸出特性間的關(guān)系,提取出了隨器件結(jié)構(gòu)變化而得到的耦合系數(shù),優(yōu)化改進(jìn)了微環(huán)諧振器的數(shù)值模擬方法,為研究微環(huán)諧振器提供了一種新的思路。
[Abstract]:With the development of science and technology, people are demanding more and more information processing. Because of the limitation of objective conditions, the optical interconnection can not meet the needs of people. Optical interconnection has stepped onto the stage of history by virtue of its advantages. Gradually become the research hotspot of the vast number of scientific research workers. As one of the representatives of optical devices, microring resonators have been paid more attention by domestic and foreign scientific research institutions, and have made great achievements in recent years. Since optical routers, guiding logic devices, filters and other optical devices based on microring resonators emerge in endlessly, it is very important to analyze and study the coupling and characteristics of microring resonators. By studying the output characteristics of microloop resonators and the coupling between waveguides, the relationship between device structure parameters and output characteristics is analyzed, and a more accurate coupling coefficient is extracted. The corresponding device structure parameters are extracted from the output spectrum of the analog tripod microring resonator. The basic theory of microring resonator is studied, the physical model of basic components is analyzed, and the method of analyzing microring resonator is discussed. The directional coupler and transmission line are the basic components of the microloop resonator. The transmission characteristics of the microloop resonator can be described by the transmission matrix of the directional coupler and the transmission line. On the basis of studying the basic model and working principle of microloop resonator, the numerical simulation of single-ring single-waveguide micro-ring resonator, single-ring double-waveguide micro-ring resonator and cascade micro-ring resonator is carried out, and the microring radius and coupling coefficient are analyzed. The influence of the main device parameters such as the transmission coefficient of the ring path and the ring spacing on the output characteristics of the device is analyzed. (3) the coupling between the straight waveguides and the coupling between the curved waveguides is simulated and analyzed by using the coupling mode theory and the transmission matrix method. In the process, the relationship between waveguide structure parameters and waveguide coupling efficiency is clarified, and the relationship among waveguide spacing, waveguide bending radius and coupling coefficient is pointed out. This paper starts with the working principle of the device to model the device. According to the given numerical range, the output characteristics of the device are roughly simulated, and then the main device parameters, the relationship between the structure parameters and the output characteristics of the device are used to fine-tune the device structure parameters in the process of numerical simulation. The analog output spectrum of the device is kept close to the experimental results, and the main structure parameters of the device are extracted. Through the work of this paper, the relationship between the device structure parameters and the output characteristics is obtained, the coupling coefficient obtained with the device structure variation is extracted, and the numerical simulation method of the microloop resonator is optimized. A new idea is provided for the study of microring resonators.
【學(xué)位授予單位】：蘭州交通大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TN629.1

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相關(guān)期刊論文 前1條

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本文編號(hào)：1857275