模組化雙波長光學讀寫頭的設計與光學讀寫頭應用在角度量測的研究

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姓名

楊家逢(Chia-Feng Yang) 查詢紙本館藏

畢業系所

光電科學與工程學系

論文名稱

模組化雙波長光學讀寫頭的設計與光學讀寫頭應用在角度量測的研究
(Design of dual-wavelength compatible pickup head and the application of pickup head in angular measurement)

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摘要(中)

本論文研究光學讀寫頭的設計以及應用在角度量測的模擬，在論文前半部提出一個模組化雙波長讀寫頭的設計，在光學設計部分，使用兩分光鏡讓兩波長雷射共用光軸，簡化對準程序，提高光學品質；並結合微光機電系統製程，使用矽光學平台達到模組化目的。同時針對讀寫頭光學設計要求、生產組裝要求及實際操作要求，利用光學軟體進行各項分析，讓設計的讀寫頭符合上述要求。論文後半部份探討光學讀寫頭應用在角度量測的可行性，針對目前結合於原子力顯微鏡的光學讀寫頭，進行光學系統重建與模擬，並利用由光偵測器得到的訊號，找出訊號與待測面偏移的關係。並針對另一類型讀寫頭，同樣進行光學系統重建跟模擬，找出光偵測器得到訊號與角度偏移關係，並與前一類型讀寫頭做比較。

摘要(英)

This thesis studies the design of dual-wavelength compatible pickup head and the new application of pickup head applied in angular measurement. In the first part, a design of dual-wavelength compatible pickup head is demonstrated. By using two cubic beam splitters, the optical path length of DVD systems is aligned to that of the CD system. This design would simplify the alignment and arise the optical quality. Also by combined on silicon optical bench, the pickup head can be compatized. The wavefront error, tolerance and operation demand of the pickup head will be analyzed. In the later part of the thesis, the optical system of two different kinds of pickup head will be simulated. By defining two operating signal from photodetectors, the relationship between signal and tilt angle will be studied. Besides, one of the two simulated pickup heads is that applied in atomic force microscope while another one is simulated to find out the difference.

關鍵字(中)

★ 雙波長光學讀寫頭角度量測

關鍵字(英)

★ Dual-wavelength
★ Optical pickup head
★ Angular measurement

論文目次

目錄
中文摘要 1
Abstract I
誌謝 III
目錄 IV
表目錄 VII
圖目錄 VIII
第一章緒論 1
1-1 光學讀寫頭的發展與應用 1
1-2 論文大綱及架構 4
第二章雙波長模組化光學讀寫頭設計 6
2-1 導論 6
2-2 雙波長模組化光學讀寫頭系統設計簡介 7
2-2-1 雷射光源和矽光學平台( SiOB ) 9
2-2-2 物鏡系統設計 11
2-2-3準直鏡系統設計 14
2-2-4 DVD系統 16
2-2-5 CD系統設計 18
第三章光學系統的評價 20
3-1 導論 20
3-2 波面像差與Strehl ratio分析 20
3-2 公差簡介 23
3-2-1 中心公差(Centered Tolerance) 23
3-2-2 偏心公差( Decentered Tolerances ) 26
3-3 光學系統公差分析 29
3-3-1 各項公差設定 29
3-3-2 公差分析結果 31
3-4聚焦誤差訊號評價 36
3-4-1 像散法介紹 36
3-4-2 光學讀寫頭的S-curve分析 38
3-5 結論及建議 40
第四章使用45

參考文獻

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指導教授

孫文信(Wen-Shing Sun)

審核日期

2007-7-17

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