以PQ:PMMA製作反射式體積布拉格光柵回饋錐形半導體放大器之窄波長雷射輸出研究

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陳傳文(Chuan-Wen Chen) 查詢紙本館藏

畢業系所

光電科學與工程學系

論文名稱

以PQ:PMMA製作反射式體積布拉格光柵回饋錐形半導體放大器之窄波長雷射輸出研究
(Study on achieving narrowing linewidth laser output from tapered amplifier feedback with PQ:PMMA reflective volume Bragg grating.)

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★ 基於光聲訊號之三維資訊重建	★ 以動態模型分析PQ:PMMA作為體積布拉格光柵之繞射效率研究

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摘要(中)

本研究以自製感光高分子光學壓克力PQ:PMMA，利用532 nm綠光高同調長度雷射光以雙光束干涉的方法將體積布拉格光柵記錄於材料內，利用曝光時監控繞射效率的方法抓出最好的曝光參數，在以製作出來的PQ:PMMA VBG 回饋1060 nm錐形放大器，達成窄化雷射輸出光譜，利用V形外腔式共振腔架構，旋轉PQ:PMMA VBG達成可調式輸出雷射波長，利用線形外腔式共振腔架構將反射式PQ:PMMA VBG當作外腔式共振腔的其中一面反射鏡直接回饋錐形放大器，可以得到更高的雷射轉換效率，輸出高功率單縱模雷射。

摘要(英)

Homemade phenanthrenequinone (PQ)-doped PMMA polymer (PQ:PMMA) volume Bragg gratings (VBGs) were manufactured by two beam interference configuration. By monitoring the diffraction efficiency of the VBG, a set of suitable exporsure parameters can be found.By using the VBGs and a tapered amplifier with gain spectrum centered at 1060 nm, a series of lasers were constructed with linear and V-shaped optical cavity configurations. The V-shaped cavity laser achieved single longitudinal mode output and 20 nm wavelength tunable range. The linear cavity laser achieved 600 mW single longitudinal mode output.

關鍵字(中)

★ 感光高分子壓克力
★ 體積全像布拉格光柵
★ 錐形半導體放大器

關鍵字(英)

★ PQ:PMMA
★ VBG
★ tapered amplifier

論文目次

目錄
中文摘要 i
Abstract ii
誌謝 iii
目錄 v
圖目錄 viii
表目錄 xi
第一章緒論 1
1-1 前言 1
1-2 研究動機 3
第二章基本原理 5
2-1 PQ:PMMA感光高分子光學壓克力 5
2-1-1 聚合反應 6
2-1-2 光化學反應 8
2-2 體積布拉格光柵(Volume Bragg Grating, VBG) 12
2-2-1 體積布拉格光柵原理 12
2-2-2 體積布拉格光柵光學特性模擬 14
2-3 雙光束干涉(Two beam interference) 17
2-4 錐形半導體放大器 24
2-4-1 錐形半導體放大器介紹 24
2-4-2 錐形半導體放大器輸出特性 25
第三章 PQ:PMMA體積布拉格光柵 27
3-1 PQ:PMMA製備流程 27
3-1-1 PQ:PMMA光彈性(photoelasticity)檢測 31
3-2 雙光束干涉曝光實驗架構 35
3-3 雙光束干涉曝光實驗參數量測 37
第四章檢測實驗架構與數據分析 42
4-1 V形外腔式共振腔 42
4-1-1 以2 mm PQ:PMMA VBG作為錐形放大器V形外腔式共振腔反射鏡達成雷射輸出 44
4-1-2 以5 mm PQ:PMMA VBG作為錐形放大器V形外腔式共振腔反射鏡達成雷射輸出 48
4-1-3 波長可調式V形外腔式共振腔 56
4-2 線形外腔式共振腔 60
4-2-1 以2 mm PQ:PMMA VBG作為錐形放大器線形外腔式共振腔反射鏡達成雷射輸出 60
4-2-2 以5 mm PQ:PMMA VBG作為錐形放大器線形外腔式共振腔反射鏡達成雷射輸出 63
4-3 樣品光柵記錄穩定性量測 67
第五章結論 73
第六章未來展望 75
第七章參考文獻 77

參考文獻

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指導教授

鍾德元(Te-Yuan Chung)

審核日期

2016-10-12

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