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研究生:洪裕涵
研究生(外文):Yu-HanHung
論文名稱:利用半導體雷射周期一動態做全光格式轉換及頻率轉換之實驗研究
論文名稱(外文):Experimental Study of All-optical Format Conversion and Frequency Conversion Using Period-one Dynamics of Semiconductor lasers
指導教授:黃勝廣
指導教授(外文):Sheng-Kwang Hwang
學位類別:碩士
校院名稱:國立成功大學
系所名稱:光電科學與工程學系
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2012
畢業學年度:100
語文別:英文
論文頁數:82
中文關鍵詞:半導體雷射全光頻率轉換全光格式轉換
外文關鍵詞:semiconductor laserall-optical frequency conversionall-optical format conversion
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本文是以實驗的方式來探討半導體雷射的非線性動態中的周期一動態並期待能運用在光學通訊上。藉由調整注入光強度我們發現其周期一動態的光強度會隨之改變,而且是呈現性的趨勢,相同地,我們調整注入與被注入雷射間的頻率差,我們也發現到其周期一動態的頻率間隔也會隨之增加。依此現象我們討論在注入光上載ASK數位訊號是否能載在週期一動態的頻戴上同樣格式的數位訊號藉此來實現全光頻率轉換的效果。另一方面,我們討論注入光強度與周期一動態頻率差間的關係以及兩雷射頻率差與周期一動態的光強度間的關係,我們研究發都呈現線性的關係,依此現象我們討論在注入光上載ASK或FSK數位訊號是否能載在週期一動態的頻戴上不同樣格式的數位訊號藉此來實現全光格式轉換的效果。實驗結果顯現出藉由調整注入光強度,此系統的頻率轉換範圍可達80GHz並且傳送2.5GB/s的ASK數位訊號。此外,經由控制光濾波器的中心頻率,我們即可達到由ASK數位訊號轉成FSK數位訊號或是FSK數位訊號轉成ASK數位訊號的格式轉換。
Studies on the characteristics of period-one oscillation in semiconductor laser subject to optical injection are experimentally and numerically investigated. By varying the detuning frequency and the injection parameter, the frequency separation and the optical intensity of the period-one dynamics are influenced due to the red-shift effect and injection-pulling effect. In this thesis, we try to investigate the relationship among detuning frequency between master and slave laser, injection parameter, frequency separation and optical intensity of period-one dynamics.
As the period-one dynamics is observed after the master laser externally injecting into a slave laser, we find that both of the frequency separation and the optical intensity of the period-one dynamics are changed continuously with the increase of the injection parameter. Seminar result is obtained as increasing the detuning frequency. Due to this experimental result, we realize the period-one dynamics carries ASK and FSK data format simultaneously as the master laser is modulated by ASK or FSK data format. All-optical frequency conversion and all-optical format conversion are achieved by using an optical filter to filter out the other sidebands of period-one dynamics

Contents
Abstract....... I
Acknowledgements....... III
Chapter 1. Introduction 1
1.1 Introduction....... 1
1.2 All-optical frequency conversion... 3
1.3 All-optical format conversion...... 9
1.4 Organization of thesis..... 10
Chapter 2. Mapping..... 11
2.1 Experimental set-up and mapping.... 11
2.2 Other injection condition.. 12
Chapter 3. Frequency conversion 22
3.1 Introduction....... 22
3.2 Static analysis.... 23
3.2.1 Experimental Set-up...... 23
3.2.2 ASK to ASK frequency conversion.. 24
3.2.3 FSK to FSK frequency conversion.. 24
3.3 Dynamic Analysis... 26
3.3.1 Experimental Set-up...... 26
3.3.2 Signal analysis.. 27
3.3.3 No conversion.... 34
3.3.4 P1 frequency conversion.. 42
3.3.5 P1_H frequency conversion 48
3.3.6 P1_L frequency conversion 54
3.3.7 Power penalty.... 60
Chapter 4. Format conversion... 62
4.2 Static analysis.... 63
4.2.1 Experimental Set-up...... 63
4.2.2 ASK to FSK frequency conversion.. 64
4.2.3 FSK to ASK frequency conversion.. 65
4.3 Dynamic Analysis... 67
4.3.1 Experimental Set-up...... 67
4.3.2 Data analysis.... 70
Chapter 5. Conclusion.. 76
5.1 Conclusion....76
5.2 Future Research.... 77
Bibliography........... 79
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