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系統識別號 U0026-0209201614065100
論文名稱(中文) 利用半導體雷射光注入與光回饋系統對混沌動態頻寬增強的研究
論文名稱(英文) Chaos bandwidth enhancement using semiconductor laser subject to optical injection and optical feedback
校院名稱 成功大學
系所名稱(中) 光電科學與工程學系
系所名稱(英) Department of Photonics
學年度 104
學期 2
出版年 105
研究生(中文) 黃信豪
研究生(英文) Hsin-Hao Huang
學號 l76031304
學位類別 碩士
語文別 中文
論文頁數 66頁
口試委員 指導教授-黃勝廣
口試委員-曾碩彥
口試委員-魏明達
口試委員-徐旭政
中文關鍵字 半導體雷射  光回饋系統  光注入系統  混沌頻寬 
英文關鍵字 semiconductor lasers  optical feedback  optical injection  chaos bandwidth 
學科別分類
中文摘要 現今混沌動態擁有多方的應用,其中包含秘密通訊、雷達、亂數產生器等,而當
混沌頻寬增加時,能使通訊系統保密程度提高、雷達則能更加準確探測、亂數產生器
也能在單位時間內提供更多數值。產生光的混沌動態之方式包含光注入系統、光回饋
系統與光電回饋系統,但以上三種系統之頻寬皆受到頻率響應所限制。
因此在本論文中模擬半導體雷射以光回饋之方式產生非線性動態中的混沌動態,
分析並計算其中頻寬的數值,並結合光注入半導體雷射系統,利用光回饋混沌動態取
代光注入系統中的主雷射或副雷射,分別研究此兩種方式對混沌動態之影響,可望其
頻寬增益。
當光回饋混沌動態受到外部連續波注入時,隨著注入的光強度增加,頻寬呈現正
相關的增幅,注入強度過大時,其動態將會受影響而進入相對穩定之週期一振盪動態
或穩定鎖住動態,頻寬極限受主副雷射之頻率差與光回饋混沌光譜峰值影響;當光回
饋混沌動態注入另一半導體雷射時,其注入強度對混沌動態頻寬較無影響,改變主副
雷射之頻率差能得到高度相關之頻寬增加。
以此兩種方式產生高頻混沌,研究其混沌動態受注入系統影響所產生之光譜特性
與頻寬增益效果,此篇論文中的兩種方式皆可造成2~3 倍的頻寬。
關鍵字:半導體雷射、光回饋系統、光注入系統、混沌頻寬
英文摘要 Chaos dynamics has lots of applications, which contain secret communication, radar,
random number generator, etc. If the bandwidth of chaos increases, the level of
confidentiality in communication system can be improved. The radar can be able to more
accurately detect. And the random number generator can also provide more bits in unit
time. Chaos dynamics can be generated by optical injection, optical feedback or
optoelectronic feedback system. But the bandwidth of above systems is limited by the
frequency response. Therefore, the chaos dynamic generated by feedback system has been
widely investigated in this thesis. In order to produce high- frequency chaos, we combined
optical injection system with optical feedback system. Then, we respectively replaced
optical injection system’s master laser or slave laser with chaos dynamics of feedback
system. When the chaos dynamics is subjected by a continuous wave injection, the
bandwidth will increase with injection strength increasing. However, the large injection
strength will affect the chaos dynamics into relatively stable dynamics. The limit of
bandwidth enhancement is depended on the different frequency between the peak in optical
spectrum of the chaos dynamics and the peak of injection laser. When a semiconductor
laser is subjected by a chaos wave injection, the injection strength had no effect on the
chaotic dynamic bandwidth. But the different frequency between the peak in optical
spectrum of the chaos dynamics and peak of slave laser is highly correlated. In this thesis,
both of them can be caused double to triple as wide as the bandwidth of the chaos dynamic
of feedback system.
論文目次 口試委員會審定書..............................#
中文摘要......................................i
ABSTRACT......................................ii
致謝............................................................ix
目錄............................................................x
圖目錄..........................................................xii
第一章 前言...................................................1
1.1研究背景.....................................................1
1.2研究動機.....................................................2
1.3論文架構.....................................................6
第二章 雷射系統模擬模型.......................................7
2.1理論模型.....................................................7
2.2模擬模型.....................................................9
2.2.1光注入半導體雷射...........................................9
2.2.2光回饋半導體雷射...........................................15
2.2.3光注入與光回饋系統共同作用下之半導體雷射...................20
第三章 連續波光注入下光回饋半導體雷射之混沌動態特性...........23
3.1光回饋混沌態之研究分析.......................................23
3.2連續波光注入光回饋半導體雷射之動態變化.......................27
3.2.1光回饋操作條件(ξ_f=0.16,τ_f=188ps)光譜與微波訊號之特性...29
3.2.2光回饋操作條件(ξ_f=0.16,τ_f=376ps)光譜與微波訊號之特性...34
3.2.3光回饋操作條件(ξ_f=0.32,τ_f=376ps)光譜與微波訊號之特性...40
3.3結論.........................................................46
第四章 光回饋混沌波注入半導體雷射產生之混沌動態特性...........47
4.1光回饋混沌波注入半導體雷射後之動態變化.......................47
4.1.1光回饋操作條件(ξ_f=0.16,τ_f=188ps)光譜與微波訊號之特性...49
4.1.2光回饋操作條件(ξ_f=0.16,τ_f=376ps)光譜與微波訊號之特性...53
4.1.3光回饋操作條件(ξ_f=0.32,τ_f=376ps)光譜與微波訊號之特性...58
4.2結論.........................................................63
第五章 總結...................................................64
參考文獻........................................................65
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