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http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/37075完整後設資料紀錄
| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 王維新(Way-Seen Wang) | |
| dc.contributor.author | Ching-Yu Tso | en |
| dc.contributor.author | 左青宇 | zh_TW |
| dc.date.accessioned | 2021-06-13T15:18:47Z | - |
| dc.date.available | 2009-07-26 | |
| dc.date.copyright | 2008-07-26 | |
| dc.date.issued | 2008 | |
| dc.date.submitted | 2008-07-23 | |
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Digonnet, and H. J. Shaw, “Photorefractive-damage-resistant Zn-diffused waveguides in MgO: LiNbO3,” Opt. Lett., vol.16, no.13, pp.995-997, 1991 [20] B. Herrerros and G. Lifante, “LiNbO3 optical waveguides by Zn diffusion from vapor phase,” Appl. Phys. Lett., vol.66, no.20, pp.1449-1451, 1995. [21] R. Nevado and G. Lifante, “Characterization of index profiles of Zn-diffused LiNbO3 waveguides,” J. Opt. Soc. Am. A, vol.16, no.10, pp.2574-2580, 1999. [22] F. Abdi, M. Aillerie, M. Fontana, P. Boursom, T. Volk, B. Maximov, S. Sulyanov, N. Rubinina, and M. Wohlecke, “Influence of Zn doping on electrooptical properties and structure of lithium niobate crystals,” Appl. Phys. Lett, vol.68, pp.795-799, 1999. [23] F. Schiller, B. Herrerros and G. Lifante, “Optical characterization of vapor Zn-diffused waveguides in lithium niobate,” J. Opt. Soc. Am. A, vol.14, no.2, pp.425-429, 1997. [24]涂瑞清，“長波長鋅擴散式鈮酸鋰光波導元件之研製”，國立台灣大學電機工程學研究所博士論文，2000 [25]廖裕評，“金屬擴散式極化分離器之研製”， 國立台灣大學電機工程學研究所博士論文，1996 [27]S. D. Smith, H. D. Riccius, and R. P. Edwin, Opt.comm, vol.17, pp.332-335, 1976 and vol. 20, p.188, 1977 [28]M. E. Glicksman, Diffusion in Soids : Field Theory, Solid-State Principles, and Applications, Wiley, 2000 [29] E. J. Lim, M. M. Fejer, and R. L. Byer,”Blue Liight Generation by Frequency Doubling in Periodically Poled LiNbO3 Channel Waveguide”, Electron. Lett., vol. 25, no. 11, pp.731-732,1989 [30] R. C. Alferness, R. V. Schmidt, and E. H. Turner, “Characteristics of Ti-diffused lithium niobate optical directional couplers,” Applied Optics, vol. 18(23), pp. 4012-4016, 1 Dec. 1979. [31] S. Fouchet, A. Carenco, C. Daguet, R. Guglielmi, and L. Riviere, “Wavelength dispersion of Ti-induced refractive index change in LiNbO3 as a function of diffusion parameters,” J. Lightwave Technol., vol. 5(5), pp.700-708, May 1987. [32] A. A. Abou El-fadl,” Modeling and Design for an Electro-optic Directional Coupler Modulator”,Microwave and Optoelectronic, SBMO/IEEE MTT-S,25-28 July 2005 pp.183-187 ,2005 [33]A.McGuire,” Optimization of LiNbO3 BOA Waveguide Switch Operating at 1.3 μm”, Electro. Lett. vol.26, no.25,1990 [34] 丁俞文，“藍光鎳擴散式波導元件之研製”， 國立台灣大學電機工程學研究所碩士論文，2007 [35]A. Ashkin, G. D. Boyd, J. M. Dziedzic, R. G. Smith, A. A. Ballman, J. J. Levinstein, and K. Nassau, “Optically-induced refractive index inhomogeneities in LiNbO3 and LiTaO3,” Appl. Phys. Lett., vol. 9, no. 1, pp. 72-74, Jul. 1966. [36]N. V. Kukhtarev, S. F. Lyuksyutov, P. Buchhave, and T. Kukhtareva, “Self-enhancement of dynamic gratings in photogalvanic crystals,” Physical Review A, vol. 58, no. 5, pp. 4051-4055, Nov. 1998. [37]陳松良，“鈮酸鋰藍光方向耦合器之研製”，國立台灣大學光電工程學研究所碩士論文，2005 [38]陳卓彥，“藍光鋅鎳擴散式馬赫任德電光調變器之研製” ，國立台灣大學光電工程學研究所碩士論文，2005 [39]C. T. Mueller, and E. Garmire, “Photorefractive effect in LINbO3 directional couplers,” Applied Optics, vol. 23, no. 23, pp. 4348-4351, Dec. 1984. [40]I. P. Kaminow and L. W. Stulz, “Loss in cleaved Ti-diffused LiNbO3 waveguides,” Appl. Phys. Lett., Vol. 33(1), pp.62-64, 1 July 1978. [41]吳正一，“質子交換與退火式質子交換鈮酸鋰藍光波導元件之研製”，國立台灣大學光電工程學研究所碩士論文，2006 | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/37075 | - |
| dc.description.abstract | 隨著半導體技術的進步，藍光雷射可成功積體化於晶片上，因此積體光學應用波段亦可從1550nm縮短至藍光波長(473nm)。藍光波段可應用於軍事及商業之光通訊系統，亦可應用於光儲存以達高密度容量，未來頗有應用潛力，其光元件之研究與製作因此亦為重要課題。
操作於短波長的光學元件，所需製程精確定較高，單模態波導須要更精細的線寬。在研究中先針對方向耦合器模擬在不同誤差下，對元件功能所產生之影響，經過計算後，發現零間隙式方向耦合器的製程容忍度比有間隙式方向耦合器高。 實驗工作則在Z切鈮酸鋰基板上以鋅鎳共同擴散製作出藍光波段(473nm)下的單模態無間隙方向耦合器。由量測結果得知，於波導寬度1.6μm、擴散源鍍膜厚度鋅450Å、鎳150Å 時，耦合長度為508μm。在藍光波段下的無間隙方向耦合器，操作電壓與長度乘積為7.36V.cm，其輸出訊熄比為16.38dB，此為目前最佳數據。 實驗結果顯示零間隙式方向耦合器在藍光波長操作100分鐘後，其耦合分量變化僅有1.89%，顯示所製作之方向耦合器之功能，並未明顯受光折效應之影響。 | zh_TW |
| dc.description.abstract | Blue laser can be successfully integrated on a chip because of the modern advanced semiconductor fabrication technology, the range of wavelength for the application of integrated optics can be shrunk from 1550nm to blue-laser wavelength (473nm). Among them, optical communication system at blue-laser wavelength has been used for military and commercial application, and optical storage with high density can be realized. Thus, blue laser is of great potential for practical application in the near future. The study of optical devices at blue-laser wavelength is then important.
Accuracy of fabrication is crucial for optical devices operating at short laser wavelengths owing to the need of narrower widths for single mode waveguides. In this work, the fabrication tolerances of directional coupler with various gaps are calculated. The results show that directional couplers without gaps are more tolerable than those with gaps. In experiment, zinc-and-nickel co-diffused single mode waveguides at blue-laser wavelength are used for the fabrication of proposed zero-gap directional couplers on a Z-cut lithium niobate substrate. The film thicknesses of diffused Zn and Ni are 450Å and 150Å, respectively. Experimental results show that the coupling length of the proposed directional coupler is 0.508mm for a waveguide of width 1.6μm. The measured operating voltage length product is 7.36V∙cm and the extinction ratio of signal output is 16.38dB, which are the best among those reported. Experimental results show the relative change of coupling ratio for 100 min test is as small as 1.89%, which indicates the photorefractive effect at blue-laser wavelength has no significant effect on the performance of the proposed directional coupler. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-13T15:18:47Z (GMT). No. of bitstreams: 1 ntu-97-R95943139-1.pdf: 3204337 bytes, checksum: 80c64c69bdb67f285fc49394827edf63 (MD5) Previous issue date: 2008 | en |
| dc.description.tableofcontents | 中文摘要……………………………………………………………I
英文摘要…………………………………………………………II 目錄………………………………………………………………III 附圖目錄……………………………………………………………V 附表目錄…………………………………………………………VII 第一章 緒論…………………………………………………………1 1-1研究背景……………………………………………………………1 1-2研究動機……………………………………………………………3 1-3內容簡介……………………………………………………………6 第二章 藍光波導元件之設計………………………………………7 2-1鋅鎳擴散式光波導之簡介…………………………………………7 2-2.1鋅擴散式波導…………………………………………∙7 2-2.2鎳擴散式波導……………………………………………∙∙8 2-2.3 鋅鎳共同擴散式波導……………………………∙∙∙∙∙9 2-2 理論模擬…………………………………………………∙∙∙11 2-3.1光束傳播法………………………………………∙∙∙∙∙11 2-3.2 擴散理論…………………………………………∙∙∙∙12 2-3.3模擬單模泰波導……………………………∙∙∙∙∙13 第三章 零間隙式方向耦合器之製作………………………15 3-1零間隙式方向耦合器原理…………………………∙∙15 3-1.1 耦合模態理論……………………………………………15 3-1.2 耦合係數…………………………………………19 3-1.3 模擬耦合長度………………………………………22 3-1.4 模擬製程容忍度……………………………………23 3-2 光罩設計…………………………………………………∙∙∙∙∙25 3-3 製作流程………………………………………………∙∙∙∙∙27 3-3.1晶片切割……………………………………………………27 3-3.2光微顯影術…………………………………………………28 3-3.3金屬薄膜蒸鍍………………………………………………29 3-3.4掀離法………………………………………………………30 3-3.5高溫擴散……………………………………………………30 3-3.6研磨拋光……………………………………………………31 3-4實驗結果與討論…………………………………………………∙∙∙32 3-4.1光場模態之量測…………………………………………∙∙32 3-4.2耦合長度之量測…………………………………………∙∙34 第四章 零間隙式方向耦合器電光調變器之製作…………………37 4-1電光調變器原理簡介………………………………………………37 4-2元件設計……………………………………………………………42 4-3製作流程……………………………………………………………43 4-3.1對準記號……………………………………………………∙44 4-3.2緩衝層………………………………………………………∙44 4-3.2金屬電極鍍膜………………………………………………∙45 4-4量測結果與討論……………………………………………………46 4-5光折效應……………………………………………………………48 4-5.1光折理論……………………………………………………∙48 4-5.2光折量測……………………………………………………51 4-6製作瓶頸及解決方式…………………………………………56 第五章 結論與未來展望……………………………………………59 5-1結論………………………………………………………………∙∙59 5-2未來展望…………………………………………………………∙∙60 參考文獻……………………………………………………………∙∙∙61 中英文對照表………………………………………………………∙∙∙65 | |
| dc.language.iso | zh-TW | |
| dc.subject | 電光調變器 | zh_TW |
| dc.subject | 藍光 | zh_TW |
| dc.subject | 鈮酸鋰 | zh_TW |
| dc.subject | 方向耦合器 | zh_TW |
| dc.subject | lithium niobate | en |
| dc.subject | directional coupler | en |
| dc.subject | blue-laser | en |
| dc.subject | electro-optic modulator | en |
| dc.title | 藍光零間隙式方向耦合器之研製 | zh_TW |
| dc.title | Design and fabrication of blue-laser zero-gap directional coupler waveguide devices | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 96-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 李清庭(Ching-Ting Lee),胡振國(Jenn-Gwo Hwu),林義彬(Yih-Bin Lin) | |
| dc.subject.keyword | 藍光,鈮酸鋰,方向耦合器,電光調變器, | zh_TW |
| dc.subject.keyword | blue-laser,lithium niobate,directional coupler,electro-optic modulator, | en |
| dc.relation.page | 63 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2008-07-25 | |
| dc.contributor.author-college | 電機資訊學院 | zh_TW |
| dc.contributor.author-dept | 電子工程學研究所 | zh_TW |
| 顯示於系所單位： | 電子工程學研究所 | |
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