博碩士論文 952206018 詳細資訊




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姓名 吳柏融(Bo-Rong Wu)  查詢紙本館藏   畢業系所 光電科學與工程學系
論文名稱 離軸全像光學儲存之誤碼率的模擬與研究
(The study and simulation of the bit error rate of off-axis volume holographic data storage system)
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摘要(中) 在本文中,我們針對離軸式體積全像儲存系統架構推導其數學模型,並利用此數學模型計算系統在多工儲存多頁間的串音影響及位元誤碼率,並分析系統之容忍度。我們也提出「定點讀取系統」、「持續轉動讀取系統」兩套系統間的比較。最後我們進行實驗,並驗證位移補償系統與布拉格選擇性之正確性。
摘要(英) In the thesis, we study the off-axis volume holographic data storage system, and we simulate the bit error rate , multi-page intercross-talk effect and analyze the system tolerance. We propose to calculate the bit error rate with single-point readout algorithm and multiple-point readout
algorithm. Finally, we build up the experiment system to verify the displacement compensation and Bragg selectivity by the theoretical calculation.
關鍵字(中) ★ 位元誤碼率
★ 光學儲存
★ 全像
關鍵字(英) ★ bit error rate
★ optical storage
★ holograpgy
論文目次 摘要 ........................................................................................................................... I
Abstract ..................................................................................................................... II
誌謝 ........................................................................................................................ III
圖索引 .................................................................................................................... VI
表索引 .................................................................................................................. VIII
第一章 緒論 ........................................................................................................... 1
1.1 全像之發展與儲存系統簡介 ..................................................................... 3
1.2 論文大綱與安排 ........................................................................................ 5
第二章 原理介紹 ................................................................................................... 7
2.1 布拉格條件 ................................................................................................ 7
2.2 理論分析 .................................................................................................. 10
2.2.1 耦合波理論 .................................................................................... 11
2.2.1-1 布拉格匹配......................................................................... 14
2.2.1-2 布拉格不匹配 ..................................................................... 16
2.3 相位疊加法 .............................................................................................. 19
2.4 位元誤碼率 .............................................................................................. 23
第三章 離軸式全像儲存系統架構 ...................................................................... 27
3.1 系統架構 ...................................................................................................27
3.2 繞射光場之近似解析解 ........................................................................... 30
3.2.1 空間調製器之近似模型 ................................................................ 30
3.2.2 繞射讀取光之近似解析解 ............................................................ 31
3.3 位移補償系統 .......................................................................................... 34
第四章 碟片記錄之行為 ..................................................................................... 35
4.1 布拉格選擇性 .......................................................................................... 36
4.2 位移多工之多頁串音 ............................................................................. 39
第五章 系統容忍度分析 ..................................................................................... 47
5.1 讀取時碟片縱向位移之響應 ................................................................... 48
5.2 偵測器擺放位置之容忍度 ....................................................................... 51
5.3 參考光之傾斜角度容忍度 ....................................................................... 54
第六章 定點讀取系統與持續轉動讀取系統 ....................................................... 57
6.1 持續轉動讀取系統................................................................................... 58
6.2 定點讀取系統 .......................................................................................... 68
6.3 兩套系統之比較 ...................................................................................... 69
6.4 系統閥值的選擇 ...................................................................................... 71
第七章 實驗與驗證 ............................................................................................. 74
7.1 參考共軛光之收斂球面波 ....................................................................... 75
7.2 共軛影像之BER 分析 ............................................................................. 82
7.3 位移補償系統之架設與驗證 ................................................................... 87
第八章 結論 ......................................................................................................... 95
參考文獻 ................................................................................................................ 96
中英文名詞對照表 ................................................................................................. 98
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指導教授 孫慶成(Ching-Cherng Sun) 審核日期 2008-7-18
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