Graphene-based passively Q-switched dual-wavelength erbium-doped fiber laser

被引：486

作者：

Luo, Zhengqian ^{[1
]}

Zhou, Min ^{[1
]}

Weng, Jian ^{[2
]}

Huang, Guoming ^{[2
]}

Xu, Huiying ^{[1
]}

Ye, Chenchun ^{[1
]}

Cai, Zhiping ^{[1
]}

机构：

[1] Xiamen Univ, Dept Elect Engn, Inst Optoelectron Technol, Xiamen 361005, Peoples R China

[2] Xiamen Univ, Coll Mat, Dept Biomat, Xiamen 361005, Peoples R China

来源：

OPTICS LETTERS | 2010年 / 35卷 / 21期

基金：

中国国家自然科学基金;

关键词：

ATOMIC-LAYER GRAPHENE; SATURABLE ABSORBER; ENERGY;

D O I：

10.1364/OL.35.003709

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate a compact Q-switched dual-wavelength erbium-doped fiber (EDF) laser based on graphene as a saturable absorber (SA). By optically driven deposition of graphene on a fiber core, the SA is constructed and inserted into a diode-pumped EDF laser cavity. Also benefiting from the strong third-order optical nonlinearity of graphene to suppress the mode competition of EDF, a stable dual-wavelength Q-switching operation has been achieved using a two-reflection peak fiber Bragg grating as the external cavity mirror. The Q-switched EDF laser has a low pump threshold of 6.5 mW at 974 nm and a wide range of pulse-repetition rate from 3.3 to 65.9 kHz. The pulse duration and the pulse energy have been characterized. This is, to the best of our knowledge, the first demonstration of a graphene-based Q-switched laser. (C) 2010 Optical Society of America

引用

页码：3709 / 3711

页数：3

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