發(fā)布時間：2018-10-22 14:34

【摘要】：隨著光纖通信技術(shù)的快速發(fā)展,光通信網(wǎng)絡(luò)的需求也在不斷的提高,微環(huán)諧振器作為光纖通訊的重要部件之一,它的理論研究具有極其重要的必要性。由于微環(huán)諧振器的尺寸小、結(jié)構(gòu)簡單、易于制作、便于集成等優(yōu)點(diǎn),可以通過控制波導(dǎo)與微環(huán)諧振腔之間的耦合,微環(huán)與微環(huán)之間的耦合,制備許多的光學(xué)器件,如濾波器、波分復(fù)用器、光開關(guān)等。而具有周期性圖案的微環(huán)諧振器與傳統(tǒng)的微環(huán)諧振器相比,它具有更好的分散控制和非均勻的自由光譜范圍。本論文采用時域耦合模理論,研究了周期性孔狀微環(huán)諧振器與直波導(dǎo)之間的耦合特性,討論了此耦合系統(tǒng)的分裂性質(zhì)和透過率特性。在把孔狀諧振腔作為共振耦合波導(dǎo)(CROW)的前提下,首先建立波導(dǎo)與微環(huán)諧振器中兩個諧振腔相互耦合的理論模型,討論奇數(shù)個和偶數(shù)個諧振腔時的分裂和傳輸性能,并利用時域有限差分法(FDTD)對所建立的數(shù)學(xué)模型進(jìn)行模擬,數(shù)值模擬結(jié)果與理論模型相一致;最后,建立波導(dǎo)與微環(huán)諧振器中三個諧振腔相互耦合的理論模型,也討論在這種結(jié)構(gòu)下,諧振腔個數(shù)為奇數(shù)和偶數(shù)時的分裂與傳輸性能,FDTD模擬驗(yàn)證了理論研究所得到的結(jié)論。本文的研究結(jié)果為孔狀周期性微環(huán)諧振腔在光學(xué)信息處理領(lǐng)域和光通信領(lǐng)域中的光子學(xué)器件設(shè)計(jì)提供了一定的理論參考和借鑒。
[Abstract]:With the rapid development of optical fiber communication technology, the demand of optical communication network is also increasing. As one of the important components of optical fiber communication, it is necessary to study the theory of microring resonator. Because of its small size, simple structure, easy fabrication and easy integration, many optical devices, such as filters, can be fabricated by controlling the coupling between the waveguide and the resonator and the coupling between the microring and the microring. Wavelength Division Multiplexer, Optical switch, etc. Compared with the traditional microring resonator, the microring resonator with periodic pattern has better dispersion control and non-uniform free spectrum range. In this paper, the coupling characteristics between the periodic hole-shaped microring resonator and the straight waveguide are studied by using the time-domain coupled mode theory, and the splitting properties and transmittance characteristics of the coupling system are discussed. On the premise of using the hole-shaped resonator as the resonant coupling waveguide (CROW), the theoretical model of the coupling between the two resonators in the waveguide and the microring resonator is established, and the splitting and transmission performance of the odd-and even-number resonators are discussed. The numerical simulation results are in agreement with the theoretical model. Finally, the theoretical model of the three resonators in the waveguide and microring resonator is established. The splitting and transmission performance of the resonator with odd and even number is also discussed in this structure. The FDTD simulation verifies the conclusion of the theoretical study. The results of this paper provide a theoretical reference for the design of photonics devices in the field of optical information processing and optical communication.
【學(xué)位授予單位】：長春理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TN929.11;TN256

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本文編號：2287437