Harmonic Mode-Locked Fiber Laser based on Photonic Crystal Fiber Filled with Topological Insulator Solution

被引:7
作者
Chen, Yu-Shan [1 ]
Yan, Pei-Guang [1 ]
Chen, Hao [1 ]
Liu, Ai-Jiang [1 ]
Ruan, Shuang-Chen [1 ]
机构
[1] Shenzhen Univ, Shenzhen Key Lab Laser Engn, Key Lab Adv Optic Precis Mfg Technol, Guangdong Higher Educ Inst,Coll Optoelect Engn, Shenzhen 518060, Guangdong, Peoples R China
关键词
Topological Insulator; photonic crystal fiber; mode-locked fiber laser; evanescent wave; harmonic mode-locking;
D O I
10.3390/photonics2020342
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We reported that the photonic crystal fiber (PCF) filled with TI:Bi2Te3 nanosheets solution could act as an effective saturable absorber (SA). Employing this TI-PCF SA device; we constructed an ytterbium-doped all-fiber laser oscillator and achieved the evanescent wave mode-locking operation. Due to the large cavity dispersion; the fundamental mode-locking pulse had the large full width at half maximum (FWHM) of 2.33 ns with the repetition rate of similar to 1.11 MHz; and the radio frequency (RF) spectrum with signal-to-noise ratio (SNR) of 61 dB. In addition; the transition dynamics from a bunched state of pulses to harmonic mode-locking (HML) was also observed; which was up to 26th order.
引用
收藏
页码:342 / 354
页数:13
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