Spectral and temporal dynamics of ultrashort pulses in a holmium-doped fibre amplifier

被引：9
|
作者：
Filatova, S. A. [1 ]
Kamynin, V. A. [1 ]
Zhluktova, I., V [1 ]
Trikshev, A., I [1 ]
Arutyunyan, N. R. [1 ,2 ]
Rybin, M. G. [1 ,2 ]
Obraztsova, E. D. [1 ,2 ]
Batov, D. T. [3 ]
Voropaev, V. S. [3 ]
Tsvetkov, V. B. [1 ,4 ]
机构：
[1] Russian Acad Sci, Prokhorov Gen Phys Inst, Ul Vavilova 38, Moscow 119991, Russia
[2] State Univ, Moscow Inst Phys & Technol, Inst Skii Per 9, Dolgoprudnyi 141701, Moscow Region, Russia
[3] Bauman Moscow State Tech Univ, Res & Acad Ctr Photon & Infrared Technol, Vtoraya Baumanskaya Ul 5-1, Moscow 105005, Russia
[4] Natl Res Nucl Univ MEPhI, Moscow Engn Phys Inst, Kashirskoe Sh 31, Moscow 11509, Russia
来源：
QUANTUM ELECTRONICS | 2019年 / 49卷 / 12期
基金：
俄罗斯基础研究基金会;
关键词：
holmium-doped fibre laser; mode-locking; nonlinear polarisation rotation; hybrid mode-locking; single-walled carbon nanotubes; ultrashort pulses; holmium-doped fibre amplifier; spectral transformation; HARMONIC MODE-LOCKING; LASER; GENERATION; FS;
D O I：
10.1070/QEL17162
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We have optimised a hybrid mode-locked holmium-doped fibre laser and a holmium-doped fibre amplifier for obtaining stable pulses as short as possible. Temporal and spectral characteristics of pulsed light have been measured as functions of pump power. Lasing has been achieved in the wavelength range 2066-2068 nm, with a full width at half maximum of the emission spectrum from 3 to 4 nm. The pulse duration does not exceed 1 ps and the pulse energy ranges from 0.2 to 0.5 nJ. To raise the pulse energy, holmium-doped fibre amplifiers based on two types of active fibre have been used. We have demonstrated a decrease in the width of the central part of the pulse autocorrelation function and considerable broadening of the spectrum of the pulses. The maximum average power at the amplifier output exceeds 200 mW.
引用
收藏
页码：1108 / 1111
页数：4
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