Low-repetition-rate, high-energy, twin-pulse, passively mode locked Yb3+-doped fiber laser

被引：17

作者：

Liu, Dongfeng ^{[1
,2
]}

Zhu, Xiaojun ^{[1
,2
]}

Wang, Chinhua ^{[1
,2
]}

Yu, Jianjun ^{[1
,2
]}

Hu, Danfeng ^{[3
]}

机构：

[1] Soochow Univ, Inst Modern Opt Technol, Suzhou 215006, Jiangsu, Peoples R China

[2] Key Lab Adv Opt Mfg Jiangsu Prov, Suzhou 215006, Jiangsu, Peoples R China

[3] Soochow Univ, Dept Elect Engn, Suzhou 215006, Jiangsu, Peoples R China

来源：

APPLIED OPTICS | 2011年 / 50卷 / 04期

关键词：

NORMAL-DISPERSION; GIANT-CHIRP; SOLITON; LOCKING; REGIME;

D O I：

10.1364/AO.50.000484

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report an all-normal-dispersion, low-repetition-rate, high-energy, twin-pulse, passively mode locked ytterbium-doped fiber laser. The mode-locking mechanism of the laser is based on nonlinear polarization evolution and strong pulse shaping with a cascade long-period fiber grating bandpass filtering in a highly chirped pulse. The laser generates a highly stable twin-pulse group with 248 ps and 296 ps duration simultaneously and maximum pulse energy of 26.8 nJ-each pulse at a 2.5445MHz repetition rate. Energy quantization is observed, which demonstrates the nonparabolic nature of these pulses. The laser can also work in third-harmonic mode locking with 17.8 nJ energy (at a repetition rate of 7.65MHz and pulse width of 780 ps). (C) 2011 Optical Society of America

引用

页码：484 / 491

页数：8

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