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博碩士論文 etd-0722100-200145 詳細資訊
Title page for etd-0722100-200145
論文名稱
Title
光碟機中雷射的雜訊與雷射模態關係之研究
The Relation between Laser Noise and Laser Longitudinal Modes in the Optical Disk System
系所名稱
Department
畢業學年期
Year, semester
語文別
Language
學位類別
Degree
頁數
Number of pages
101
研究生
Author
指導教授
Advisor
召集委員
Convenor
口試委員
Advisory Committee
口試日期
Date of Exam
2000-06-23
繳交日期
Date of Submission
2000-07-22
關鍵字
Keywords
縱模、相對強度雜訊、光碟機、雜訊、半導體雷射
Semiconductor Laser, RIN, Optical Disk System, noise, Longitudinal Mode
統計
Statistics
本論文已被瀏覽 5672 次,被下載 29069
The thesis/dissertation has been browsed 5672 times, has been downloaded 29069 times.
中文摘要
光碟機是利用半導體雷射的光讀取碟片上的資料,雷射的雜訊是光碟機中訊號的第一個雜訊源,因此各類光碟機對雷射雜訊的數值都有嚴格的規定,以確保碟機的正常運作和讀取資料正確性。在半導體雷射相關的各種雜訊中,回饋光所引起的雜訊是最嚴重的;回饋光的作用是經由擾動半導體雷射的縱模態而引發強大的雜訊。本論文是研究在驅動電流及溫度兩種雷射參數之下,回饋光對半導體雷射的模態及雜訊的影響,藉以探討光碟機中防制雷射雜訊的方法,嘗試對光碟機的設計提出建議。研究過程中也對實體的光碟機做了一些量測。
Abstract
In optical disk systems, a semiconductor laser is used to read out the data recorded on the disc. Since the laser is the first noise source, there are strictly rated values for laser's noise in various optical disk systems to ensure the normal operation of the system. Among different laser noises, the worst one is the optical feedback noise. The feedback light will disturb the longitudinal modes of the laser and induce huge fluctuation in Laser's output. In our work, we study the effect of optical feedback on Laser's modes and relative intensity noises under various driving current and chop temperature. We try to find out methods that can suppress the Laser's noise and try to give some suggestions for the design of disc driven. Some experiments about a commercialized optical disk driver are also reported as well.
目次 Table of Contents
中文摘要
英文摘要
致謝辭
目錄
圖表目錄

第一節 簡介
第二節 光碟機的系統架構與光學頭
第三節 光碟機中雷射的雜訊
第四節 實驗系統介紹
第五節 實驗結果與討論
第六節 結論
附錄
參考資料
參考文獻 References
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2.Biesterbos, W.M., Denboef, A.J., Linders, W., and Acket, G.A., “Low-Frequency Mode-Hopping Optical Noise in AlGaAs Channeled Substrate Lasers Induced by Optical Feedback”, IEEE J. QUANTUM ELEC. QE-19, pp.986-990, June, 1983

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