本文關(guān)鍵詞：與V型耦合腔波長可調(diào)諧激光器集成的電吸收調(diào)制器研究　出處：《浙江大學》2015年碩士論文　論文類型：學位論文

  更多相關(guān)文章： V型耦合腔波長可調(diào)諧激光器 高速電吸收調(diào)制器 等效電路模型 高頻結(jié)構(gòu)仿真 調(diào)制帶寬

【摘要】：光通信技術(shù)的突破極大地推動了信息化時代的發(fā)展,信息化的發(fā)展始終伴隨著對光通信系統(tǒng)傳輸容量與帶寬需求的提高。以波分復用(WDM)技術(shù)為代表的光通信技術(shù)是未來構(gòu)建智能光網(wǎng)絡(luò)的關(guān)鍵。為了盡量發(fā)揮WDM技術(shù)的優(yōu)勢,在通信網(wǎng)絡(luò)中,我們需要波長可調(diào)諧的半導體激光器�？烧{(diào)諧半導體激光器能夠根據(jù)要求來動態(tài)調(diào)整輸出波長,在寬帶光通信系統(tǒng)和智能光網(wǎng)絡(luò)(SDN)中有著重要的應(yīng)用。為密集波分復用(DWDM)系統(tǒng)中的固定波長激光器提供備份,波長轉(zhuǎn)換以及光路由等都是其重要功能。大規(guī)模的應(yīng)用可調(diào)諧激光器將減少所需的備份器件數(shù)量,從而簡化系統(tǒng),降低成本,提高可靠性。如今可調(diào)諧半導體激光器已成為新一代密集波分復用系統(tǒng)以及全光網(wǎng)絡(luò)中光子交換的關(guān)鍵光電器件。與此同時,對波長可調(diào)諧激光器發(fā)出的光進行外調(diào)制,可以有效的避免直接調(diào)制所帶來的高啁啾并在一定程度上克服傳統(tǒng)單模光纖中的色散效應(yīng)�；赒CSE的高速電吸收調(diào)制器,由于其低成本,低能耗,結(jié)構(gòu)緊湊且易與DFB激光器、SOA等光器件集成的特點,也已經(jīng)成為40-Gb/s光通信系統(tǒng)中的關(guān)鍵組件。利用量子阱混合等有源、無源集成技術(shù),設(shè)計單片集成的可調(diào)諧電吸收調(diào)制激光器(EML),對于未來光通信網(wǎng)絡(luò)的擴大與普及有著重要的現(xiàn)實意義。本文提出了一種基于V型耦合腔波長可調(diào)諧激光器與集總型電吸收調(diào)制器的新型電吸收調(diào)制激光器(EML),采用了量子阱混合技術(shù)來進行單片集成；引入了一個簡潔的電吸收光調(diào)制器模型來分析其高頻特性；通過對EML的層狀結(jié)構(gòu)以及外部尺寸進行優(yōu)化,仿真結(jié)果顯示其電光響應(yīng)-3 dB帶寬可達16GHz,電吸收調(diào)制器部分的結(jié)電容僅為0.17 pF。最后,依據(jù)仿真結(jié)果進行了實物器件的制作并對其靜態(tài)性能進行了測試,我們相信這種新型波長可調(diào)諧EML在未來DWDM系統(tǒng)的應(yīng)用中將發(fā)揮重要的作用。
[Abstract]:The breakthrough of optical communication technology has greatly promoted the development of the information age. The development of information technology has always been accompanied by the increase of transmission capacity and bandwidth of optical communication system. The optical communication technology represented by WDM technology is the key to construct intelligent optical network in the future. In order to give full play to the advantages of WDM technology. In communication networks, we need wavelength tunable semiconductor lasers, which can dynamically adjust the output wavelength according to the requirements. It has important applications in broadband optical communication system and intelligent optical network (SDN). It provides backup for fixed wavelength lasers in dense wavelength division multiplexing (DWDM) system. Wavelength conversion and optical routing are important functions. The large scale application of tunable lasers will reduce the number of backup devices required, thus simplifying the system and reducing the cost. Improving reliability. Nowadays tunable semiconductor lasers have become the key optoelectronic devices in the new generation of dense wavelength division multiplexing (DWDM) systems and photonic exchange in all optical networks. The light emitted by the wavelength tunable laser is externally modulated. It can effectively avoid the high chirp brought by direct modulation and overcome the dispersion effect in traditional single-mode fiber to a certain extent. High speed electric absorption modulator based on QCSE has low cost and low energy consumption. Compact and easy to integrate with DFB lasers and other optical devices, it has become a key component of 40-GB / s optical communication system, using the quantum well hybrid active, passive integration technology. A monolithic integrated tunable electroabsorption modulated laser (EMLs) is designed. It is of great practical significance to expand and popularize the optical communication network in the future. In this paper, a new type of electro absorption modulated laser based on V type coupled cavity wavelength tunable laser and lumped electric absorption modulator is proposed. EMLs. The quantum well mixing technique is used for monolithic integration. A simple model of electrically absorbed light modulator is introduced to analyze its high frequency characteristics. By optimizing the layered structure and the external dimension of EML, the simulation results show that the electro-optic response can reach 16GHz in 3 dB bandwidth. The junction capacitance of the electric absorption modulator is only 0.17 PF. Finally, the physical device is fabricated and its static performance is tested according to the simulation results. We believe that this novel wavelength tunable EML will play an important role in the application of DWDM systems in the future.
【學位授予單位】：浙江大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TN248

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