【摘要】：磁光器件,特別是磁光器件的非互易特性,在光通信系統(tǒng)中和集成光學(xué)領(lǐng)域發(fā)揮著不可或缺的作用。隨著光通信技術(shù)日益發(fā)展對各式器件提出更高的要求,磁光器件也在朝著小型化、集成化、智能化和功能化的方向不斷地發(fā)展. 基于上述思想,本文的目的在于：基于磁光效應(yīng)相關(guān)特性,研究了若干新型磁光器件結(jié)構(gòu),具體如下： 1.從磁光效應(yīng)的宏觀理論出發(fā),闡述了磁光效應(yīng)對材料光學(xué)物理特性磁導(dǎo)率μ、介電常數(shù)ε、電導(dǎo)率σ的影響。結(jié)合麥克斯韋方程組,簡要分析了磁光效應(yīng)能打破電磁波傳輸洛侖茲互易定理的原因,給出了在波導(dǎo)分析中經(jīng)常用到的微擾理論分析公式。介紹了幾種最為常見的磁光材料,并且對未來磁光材料的發(fā)展進行了探索。 2.分析了一種基于金屬表面等離子波的磁光波導(dǎo)結(jié)構(gòu)。該結(jié)構(gòu)利用了SPPs對光場亞波長限制性以及它對周邊介質(zhì)光電物理特性的強敏感性,并利用緩沖層形成金屬表面等離子波的混合模式降低了傳播損耗,實現(xiàn)了此磁光波導(dǎo)結(jié)構(gòu)有較高NRPS、長傳播距離、強模式限制性的特點。 3.分析了一種多環(huán)串聯(lián)型微環(huán)隔離器。在該結(jié)構(gòu)中,我們利用多跑道環(huán)串聯(lián)結(jié)構(gòu),從工藝上解決了磁場施加制作的難題。同時通過多環(huán)串聯(lián)產(chǎn)生的平頂效應(yīng),保證了隔離器有小尺寸、高隔離度的特點,且能實現(xiàn)更寬隔離譜。 4.本文還對二維波導(dǎo)中理想導(dǎo)體邊界條件進行了分析。在該分析方法中,我們將二維的良導(dǎo)體近似為理想邊界,分析了有此類邊界的波導(dǎo)結(jié)構(gòu),并與其他文獻不同分析方法做比較,證明了其可行性。
[Abstract]:The nonreciprocal characteristics of magneto-optic devices, especially magneto-optical devices, play an indispensable role in optical communication systems and integrated optics. With the development of optical communication technology, magneto-optic devices are developing towards miniaturization, integration, intelligence and functionalization. Based on the above idea, the purpose of this paper is to study some new magneto-optic devices based on the magneto-optic effect correlation characteristics, as follows: 1. Based on the macroscopic theory of magneto-optic effect, the effects of magneto-optical effect on the permeability 渭, dielectric constant 蔚 and conductivity 蟽 of the material are discussed. Combined with Maxwell's equations, the reason why magneto-optic effect can break the Lorentz reciprocity theorem of electromagnetic wave transmission is briefly analyzed, and the analytical formula of perturbation theory, which is often used in waveguide analysis, is given. Some most common magneto-optic materials are introduced, and the development of magneto-optic materials in the future is explored. 2. A magneto-optic waveguide structure based on metal surface plasma wave is analyzed. The structure takes advantage of the SPPs's strong sensitivity to the optoelectronic physical properties of the surrounding dielectric, and reduces the propagation loss by using the mixed mode of the buffer layer to form the plasma wave on the metal surface, which is limited to the sub-wavelength of the light field and is sensitive to the photoelectric physical properties of the peripheral dielectric. The magneto-optical waveguide structure has the characteristics of high NRPS, long propagation distance and strong mode limitation. 3. A multi-ring series microloop isolator is analyzed. In this structure, we use the multi-runway ring series structure to solve the problem of making magnetic field. At the same time, the flat-top effect of multi-loop series is used to ensure that the isolator has the characteristics of small size and high isolation degree, and can realize wider isolation spectrum. 4. The boundary conditions of ideal conductors in two dimensional waveguides are also analyzed. In this method, the two-dimensional good conductor is approximated as the ideal boundary, and the waveguide structure with such boundary is analyzed, and compared with other analytical methods in other literatures, the feasibility of the method is proved.
【學(xué)位授予單位】：浙江大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TN929.1

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本文編號：2303413