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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 |
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系所名稱 Department |
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畢業學年期 Year, semester |
語文別 Language |
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學位類別 Degree |
頁數 Number of pages |
101 |
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研究生 Author |
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指導教授 Advisor |
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召集委員 Convenor |
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口試委員 Advisory Committee |
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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 |
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統計 Statistics |
本論文已被瀏覽 5672 次,被下載 29069 次 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 |
1.rimoto, A., Ojima, M., Chinone, N., Oishi, A., Gotoh, T., and Ohnuki, N., “Optimum conditions for the high frequency noise reduction method in optical videodisc players”, Appl. Opt. 25, pp.1398-1403, May, 1986 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 3.Chraplyvy, A.R., and Tkach, R.W.,“Regimes of Feedback Effects in 1.5-μm Distributed Feedback Lasers”, IEEE J. Lightwave Technol., vol. LT4, pp.1655-1661, 1986 4.Dewey, A.G., “Measurement and modeling of optical disk noise”, SPIE vol. 695, pp.72-78, 1986 5.Freeman, M.O., Shih, H.F., Yang, T.P., Wang, J.K., Yang, T.M., Lei, K.L., Chuang, Y.H., Chang, M.W., “A Laser Noise Reduction Method for Holographic Pickup Heads”, ITRI, Twain 6.Freeman, M.O., “NOISE CONSIDERATIONS FOR LASERS USED IN DVD DISK DRIVES”, ITRI, Twain 7.Hall, R.N., Fenner, G.E., Kingsley, J.D., Soltys, T.J., and Carlson, R.O. Phys. Rev. Lett.9, 366, 1962, Yasaka, H., and Kawaquchi, H., “ Linewidth reduction and optical frequency stabilization of a distributed feedback laser by incoherent optical negative feedback”, Appl. Phys. Lett.53, 1360, 1988 8.Ojima M., Arimoto A., Chinone N., Gotoh T., and Aiki K.,“Diode laser noise at video frequencies in optical videodisc players”, APPLIED OPTICS, vol. 25. No.9, 1986 9.Pohlmann K.C., “The Compact disc handbook”, 1994 10.Sherman C., “CD-ROM handbook”, 1992 11.SHARP Optoelectronics catalog, “Characteristic Measurement Methods” 12.王勝治, “數位雷射音響”, 全華科技圖書公司, 1989 13.陳連春, “PCM與光碟技術”, 建興出版社, 1991 14.吳至中、楊聰明, “在分離式光學讀取頭加入高頻調變以降低雷射二極體雜訊”, ITRI, Twain, 1992 15.黃德榮, “光碟技巧”, 第三波文化事業股份有限公司, 1995 16.陳榮智, “半導體雷射在正交偏振光回饋下之單縱模特性及模躍遷雜訊的研究”, 國立中山大學物理研究所, 碩士論文, 1995 17.黃仁宏, “光碟機跨軌漏數偵測與粗調伺服系統之研究”, 國立交通大學電機與控制工程學系, 碩士論文, 1997 18.PIDA(光電科技工業協進會), “1997年光儲存產業及技術動態調查報告”, 1998 19.曾乃恆,“DVD伺服系統初探”, DVD通訊, 第15期, 第二版, 1998 20.蔡振凱, “半導體雷射中正交偏振回饋光之強度對縱模穩定性之影響研究”, 國立中山大學物理研究所, 碩士論文, 1998 21.楊子平, “DVD光學讀取頭光學系統介紹”, 88年DVD技術人才培訓講義, 工研院光電所, 1999 22.朱朝居,“DVD光學讀取頭技術”, DVD通訊, 第25期, 第二版, 1999 |
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