國立臺灣大學電子工程學研究所王維新2006-07-262018-07-102006-07-262018-07-102004-10-31http://ntur.lib.ntu.edu.tw//handle/246246/20005本計畫採用鋅鎳擴散式鈮酸鋰光 波導技術，成功製作出一非對稱式Y 形結構可適用在1.55μm 波長光源的 大角度光極化分離器；並且利用對稱 式Y 形分岔結構，分別成功製作出適 用在1.55μm 及 0.6328μm兩種波長光 源之大角度光功率分離器。在光極化 分離器部份，亦即藉由控制鋅鎳波導 製程條件來單導特定極化方向的光， 將輸入訊號中不同極化方向的光分 開。本計畫內容除了延續以往之研究 成果外，並將本實驗室提出的簡式同 調耦合型彎曲結構應用在元件製作 上，使得兩分支光波導距離可達到 195μm。此外，本計畫也首次利用鋅 鎳波導配合簡式同調耦合彎曲結構製 作出大角度光功率分離器，不僅使元 件擁有高傳輸率，更大幅減小元件所 佔面積，符合現今對元件高度積體化 之需求。Wide-angle optical polarization splitter, operating at 1.55μm wavelength, with an asymmetric Y-branch waveguide made by Zn and Ni co-diffusion LiNbO3 is successfully fabricated. For comparison, optical power splitters based on symmetric Y-branch operating at both 1.55μm and 0.6328μm are also fabricated. The measured results show high transmission efficiencies can be obtained. In particular, the process-dependent guiding property of Zn/Ni co-diffusion LiNbO3 waveguides and simplified coherently- coupled waveguide segments are utilized for polarization splitting and wide-angle bending, respectively. Those are the first demonstration of both wide-angle polarization and efficient power splitting using Zn/Ni co-diffusion LiNbO3 waveguide. Experimental results show flexible control of waveguide polarization properties is possible and significant reduction of the device length for high packaging density becomes feasible.application/pdf91474 bytesapplication/pdfzh-TW國立臺灣大學電子工程學研究所鈮酸鋰簡式同調耦合 型彎曲結構大角度光極化分離器大角度光功率分離器Lithium niobatesimplified coherently-coupled segmentwide angle polarization splitterwide-angle power splitterreporthttp://ntur.lib.ntu.edu.tw/bitstream/246246/20005/1/922215E002009.pdf