Carboxyl graphene oxide solution saturable absorber for femtosecond mode-locked erbium-doped fiber laser

被引：13

作者：

Lv, Rui-dong ^{[1
]}

Li, Lu ^{[2
]}

Wang, Yong-gang ^{[1
]}

Chen, Zhen-dong ^{[1
]}

Liu, Si-cong ^{[1
]}

wang, Xi ^{[3
]}

wang, Jiang ^{[1
]}

Li, Yong-fang ^{[1
]}

机构：

[1] Shaanxi Normal Univ, Sch Phys & Informat Technol, Xian 710119, Shaanxi, Peoples R China

[2] Xian Inst Posts & Telecommun, Sch Sci, Xian 710121, Shaanxi, Peoples R China

[3] Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Shaanxi, Peoples R China

来源：

CHINESE PHYSICS B | 2018年 / 27卷 / 11期

基金：

中国国家自然科学基金;

关键词：

fiber lasers; mode-locked pulse; nonlinear optical materials; carboxyl graphene oxide; ER; GENERATION; WAVELENGTH; LOCKING;

D O I：

10.1088/1674-1056/27/11/114214

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The carboxyl-functionalized graphene oxide (GO-COOH) is a kind of unique two-dimensional (2D) material and possesses excellent nonlinear saturable absorption property and high water-solubility. In this paper, we prepare saturable absorber (SA) device by depositing GO-COOH nanosheets aqueous solution on a D-shaped fiber. The modulation depth (MD) and saturable intensity of the SA are measured to be 9.6% and 19 MW/cm(2), respectively. By inserting the SA into the erbium-doped fiber (EDF) laser, a passively mode-locked EDF laser has been achieved with the spectrum center wavelength of 1562.76 nm. The pulse duration, repetition rate, and the signal-to-noise ratio (SNR) are 500 fs, 14.79 MHz, and 80 dB, respectively. The maximum average output power is measured to be 3.85 mW. These results indicate that the GO-COOH nanosheets SA can be used as a promising mode locker for the generation of ultrashort pulses.

引用

页数：5

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