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長腔被動鎖模摻鐿光纖激光器的方波脈沖產生

Generation of Square Pulses in Passively Mode-Locked Ytterbium-Doped Fiber Laser with Long Cavity

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摘要

報道了一種基于非線性光纖環形鏡(NOLM)、工作在耗散孤子共振(DSR)區的長腔被動鎖模摻鐿光纖激光器,該激光器諧振腔的總長度約為1502 m,可以輸出重復頻率為133.18 kHz的高能量方波脈沖,且輸出脈沖的寬度和單脈沖能量均隨泵浦功率的增大而呈線性增大。當泵浦功率增大到414.47 mW時,輸出的方波脈沖具有最大寬度(761.6 ns),同時單脈沖能量達到了最大值(60.2 nJ)。通過改變NOLM中單模光纖的長度,進一步研究了諧振腔長度對輸出方波脈沖特性的影響,結果表明:諧振腔越長,所得DSR方波脈沖越寬,脈沖峰值功率越低。

Abstract

This paper reports on a passively mode-locked ytterbium-doped fiber laser with a 1502-m total cavity length operating in the dissipative soliton resonance (DSR) region using the nonlinear optical loop mirror (NOLM) technique. High-energy square pulses with an ultra-low repetition rate of 133.18 kHz are observed. Both the duration and single pulse energy of the output DSR pulse increase linearly with increasing pump power. The maximum output pulse duration reaches 761.6 ns at a pump power of 414.47 mW, while the single pulse energy at the same power level reaches 60.2 nJ. In addition, the influence of cavity length on the pulse duration and single pulse energy is investigated by changing the length of the single mode fiber in the NOLM. The results indicate that the longer the cavity length is, the larger the pulse duration is, and the lower the peak power is.

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補充資料

中圖分類號:O436

DOI:10.3788/CJL202047.0101003

所屬欄目:激光器件與激光物理

基金項目:國家自然科學基金;

收稿日期:2019-07-15

修改稿日期:2019-09-26

網絡出版日期:2020-01-01

作者單位    點擊查看

孫旭:天津大學精密儀器與光電子工程學院光纖光學及光通信實驗室, 天津 300072
賈東方:天津大學精密儀器與光電子工程學院光纖光學及光通信實驗室, 天津 300072
李梓豪:天津大學精密儀器與光電子工程學院光纖光學及光通信實驗室, 天津 300072
葛春風:天津大學精密儀器與光電子工程學院光纖光學及光通信實驗室, 天津 300072
王肇穎:天津大學精密儀器與光電子工程學院光纖光學及光通信實驗室, 天津 300072
楊天新:天津大學精密儀器與光電子工程學院光纖光學及光通信實驗室, 天津 300072
曹曉冬:天津光電集團有限公司, 天津 300384
張鵬泉:天津光電集團有限公司, 天津 300384

聯系人作者:賈東方([email protected])

備注:國家自然科學基金;

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引用該論文

Sun Xu,Jia Dongfang,Li Zihao,Ge Chunfeng,Wang Zhaoying,Yang Tianxin,Cao Xiaodong,Zhang Pengquan. Generation of Square Pulses in Passively Mode-Locked Ytterbium-Doped Fiber Laser with Long Cavity[J]. Chinese Journal of Lasers, 2020, 47(1): 0101003

孫旭,賈東方,李梓豪,葛春風,王肇穎,楊天新,曹曉冬,張鵬泉. 長腔被動鎖模摻鐿光纖激光器的方波脈沖產生[J]. 中國激光, 2020, 47(1): 0101003

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