新型變焦凹面型光柵

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姓名

陳暉暄(Huihsuan Chen) 查詢紙本館藏

畢業系所

光電科學與工程學系

論文名稱

新型變焦凹面型光柵
(A Novel Zoom Concave Grating)

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摘要(中)

光纖通訊為了追求提升單一光纖之通道流量，會將一定範圍內之頻寬加以切割成更多頻道，而要將多項訊號混合分離到光纖，必須使用波長多工器（WDM）或是時間多工器（TDM）的觀念，鑑於目前波長多工器資料傳輸能力越來越強，而一般接收端並不需如此龐大的資料流，於是許多研究試圖整合波長多工器與時間多工器，假如光纖傳輸資料經過波長多工器分光之後，擁有M個頻道，欲將資料流按時間分配給N個接收端。則相當於幫每個頻道裝的光學開關元件，因此需要裝個光學開關元件，以經濟效益來看相當不經濟，因此本論文將針對如何將分光與光學開關整合在同一個元件上進行探討，由於凹面型光柵同時具有角色散能力與成像聚焦在焦點上的功能，因此不需在額外增加透鏡，並且由凹面型光柵的折射元件特性可以知道，如果改變凹面鏡曲率中心則聚焦點也會隨之改變，因此本論文將討論如何以微機電技術設計、製造、測試一變焦凹面型光柵來同時達成分光與光學開關功能。

摘要(英)

With the continuous advance in optical technology, Wavelength division multiplexing (WDM) network will play an important role in wide area backbone networks. Optical wavelength switching, compared with optical packet switching, is a more mature and more cost-effective choice for optical switching technologies. Besides, the technology of time division multiplexing (TDM) in optical communication networks has been working smoothly for a long time.
WDM system can full utilize fiber bandwidth and increase transmission capacity that is the most acceptable structure in recent years. In this thesis, we present improved system performance using zoom concave grating. There are two classes of important research issues. The first class focuses on the concave grating can supply WDM with dispersion compensation and focusing image. The N-order diffracted signal light by the blazed grating is directed to the fiber of output and focused on spot size. The second class of problems focuses on the radius of curvature zoom. The change of curvature was made over to the focus point. The effect equals to a channel switch.
This study is important since the performance of existing networks can be improved by distribution of data flow rate properties of WDM technologies.

關鍵字(中)

★ 火焰型光柵
★ 凹面型光柵
★ 微機電

關鍵字(英)

★ MEMS
★ Concave grating
★ Blazed grating

論文目次

第1章緒論 1
1-1 前言 1
1-2 文獻回顧與研究目的 4
1-3 本論文內容與架構 8
第2章光學相關原理與設計 10
2-1 光柵介紹 10
2-2 火焰式光柵 16
2-3 凹面型光柵的特性 20
2-4 凹面型光柵曲率半徑改變之特性 25
2-5 入射波長與入射角、繞射角、聚焦點關係 29
第3章致動器相關理論與設計分析 33
3-1 各類致動器比較 34
3-2 平移式靜電梳狀致動器理論分析 38
3-3 Smart製程與SOI製程探討 47
3-4 有限元素分析法分析 52
第4章元件製程與量測 60
4-1 元件製程技術 60
4-2 元件驅動電路架設 60
4-3 變焦凹面型光柵力學特性量測與討論 60
4-4 凹面型光柵光學量測與討論 60
第5章結論與未來展望 60
5-1 結論 60
5-2 未來展望 60
參考文獻….. 60

參考文獻

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指導教授

張正陽(Jenq-Yang Chang)

審核日期

2004-7-11

推文