Comparison of mode-locking regimes in a holmium fibre laser

被引：8
|
作者：
Filatova, S. A. [1 ]
Kamynin, V. A. [1 ]
Arutyunyan, N. R. [1 ,2 ]
Pozharov, A. S. [1 ]
Obraztsova, E. D. [1 ,3 ]
Itrin, P. A. [4 ]
Tsvetkov, V. B. [1 ,2 ]
机构：
[1] Russian Acad Sci, Prokhorov Gen Phys Inst, Ul Vavilova 38, Moscow 119991, Russia
[2] Natl Res Nucl Univ MEPhI, Moscow Engn Phys Inst, Kashirskoe Sh 31, Moscow 115409, Russia
[3] Moscow Inst Phys & Technol, Inst Skii Per 9, Dolgoprudnyi 141701, Moscow Region, Russia
[4] Ulyanovsk State Univ, Ul L Tolstogo 42, Ulyanovsk 432017, Russia
来源：
QUANTUM ELECTRONICS | 2018年 / 48卷 / 12期
基金：
俄罗斯科学基金会;
关键词：
holmium fibre laser; mode-locking; nonlinear polarisation rotation; hybrid mode-locking; single-walled carbon nano-tubes; FEMTOSECOND LASER; MU-M; TM;
D O I：
10.1070/QEL16842
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：
A comparison has been performed for two mode-locking regimes in an all-fibre holmium laser: locking due to nonlinear polarisation rotation (NPR) and hybrid mode-locking (NPR with application of single-walled carbon nanotubes). The characteristics of pulsed lasing in both regimes are investigated. Pulsed lasing is obtained at wavelengths of 2072 and 2082 nm, with FWHM values of 3.7 and 3.3 nm, respectively. The pulse width in both cases does not exceed 1.5 ps. The pulse energies in the NPR mode-locking and hybrid mode-locking regimes are 0.4 and 0.3 nJ, respectively. It is shown that the signal-to-noise ratio in the case of hybrid mode-locking is 3 dB better than that implemented under conditions of NPR mode-locking. A possibility of self-starting a laser system by app-lying hybrid mode-locking is indicated.
引用
收藏
页码：1113 / 1117
页数：5
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