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光纖環型雷射鎖模架構之研究 = The Study of Fiber R...

國立高雄大學電機工程學系碩士班

光纖環型雷射鎖模架構之研究 = The Study of Fiber Ring Laser Mode-locked Structure

Record Type:	Language materials, printed : monographic
Paralel Title:	The Study of Fiber Ring Laser Mode-locked Structure
Author:	黃愷融,
Secondary Intellectual Responsibility:	國立高雄大學
Place of Publication:	[高雄市]
Published:	撰者;
Year of Publication:	2009[民98]
Description:	82面圖、表 : 30公分;
Subject:	光纖環型雷射
Subject:	Fiber ring laser
Online resource:	http://handle.ncl.edu.tw/11296/ndltd/25019515824557876847
Notes:	指導教授：施明昌
Notes:	參考書目：面
Summary:	實驗中使用980nm雷射激發摻鉺光纖產生在範圍1530 nm ~ 1570 nm寬頻光源，同時也做為光纖環型雷射架構放大器用途，環形迴路中添加一窄頻寬的濾波器，並且分別使用鈮酸鋰(LiNbO3)材料聲光調變器(acousto-optic modulator)與電光調變器(eletro-optic modulator)對光纖環型雷射作調變，達到主動鎖模之目的產生超短脈衝雷射。實驗中使用不同濾波器種類、極化控制、光放大器與共振腔長度等不同條件，研究雷射鎖模光輸出特性差異。以聲光調變器作頻率之調變，當調變頻率在40kHz以下可形成Q開關脈衝雷射，而當調變在3.3MHz時,其脈衝寬度約620ps;以電光調變操作在諧頻為2GHz時,其脈衝寬度為172ps，改用更寬的濾波器則得到更窄的脈寬約53ps，重複頻率為4GHz，但也因此受頻率啁啾影響。另外在此架構內也同時發現碰撞脈衝鎖模的形成，能將脈衝寬度壓縮在230fs並得到753GHz重複頻率。 In this thesis we studied a fiber ring laser system which is pumped by a 980 nm laser diode to achieve a profile covered from 1530 nm to 1550 nm. Add an acousto-optic modulator and an eletro-optic modulator of LiNbO3 were used to study the effects of fiber ring laser mode-locking characteristic. Q-switch has been achieved at frequency under 40 kHz. 620 ps pulse width mode locking is able to achieve at 3.3 MHz by an AO modulation. 172 ps pulse width mode locking is able to achieve at 2 GHz by an EO modulation. 53 ps pulse width mode locking can achieve by a wider band filter. In addition, colliding-pulse mode-locking has been found in which a 230 fs pulse width is able achieved.

光纖環型雷射鎖模架構之研究 = The Study of Fiber Ring Laser Mode-locked Structure
黃, 愷融

光纖環型雷射鎖模架構之研究 = The Study of Fiber Ring Laser Mode-locked Structure / 黃愷融撰 - [高雄市] : 撰者, 2009[民98]. - 82面 ; 圖、表 ; 30公分.
指導教授：施明昌參考書目：面.
光纖環型雷射Fiber ring laser

光纖環型雷射鎖模架構之研究 = The Study of Fiber Ring Laser Mode-locked Structure
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328 $a 碩士論文--國立高雄大學電機工程學系碩士班
330 $a 實驗中使用980nm雷射激發摻鉺光纖產生在範圍1530 nm ~ 1570 nm寬頻光源，同時也做為光纖環型雷射架構放大器用途，環形迴路中添加一窄頻寬的濾波器，並且分別使用鈮酸鋰(LiNbO3)材料聲光調變器(acousto-optic modulator)與電光調變器(eletro-optic modulator)對光纖環型雷射作調變，達到主動鎖模之目的產生超短脈衝雷射。實驗中使用不同濾波器種類、極化控制、光放大器與共振腔長度等不同條件，研究雷射鎖模光輸出特性差異。以聲光調變器作頻率之調變，當調變頻率在40kHz以下可形成Q開關脈衝雷射，而當調變在3.3MHz時,其脈衝寬度約620ps;以電光調變操作在諧頻為2GHz時,其脈衝寬度為172ps，改用更寬的濾波器則得到更窄的脈寬約53ps，重複頻率為4GHz，但也因此受頻率啁啾影響。另外在此架構內也同時發現碰撞脈衝鎖模的形成，能將脈衝寬度壓縮在230fs並得到753GHz重複頻率。 In this thesis we studied a fiber ring laser system which is pumped by a 980 nm laser diode to achieve a profile covered from 1530 nm to 1550 nm. Add an acousto-optic modulator and an eletro-optic modulator of LiNbO3 were used to study the effects of fiber ring laser mode-locking characteristic. Q-switch has been achieved at frequency under 40 kHz. 620 ps pulse width mode locking is able to achieve at 3.3 MHz by an AO modulation. 172 ps pulse width mode locking is able to achieve at 2 GHz by an EO modulation. 53 ps pulse width mode locking can achieve by a wider band filter. In addition, colliding-pulse mode-locking has been found in which a 230 fs pulse width is able achieved.
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