Large Energy, Wavelength Widely Tunable, Topological Insulator Q-Switched Erbium-Doped Fiber Laser

被引：175

作者：

Chen, Yu ^{[1
]}

Zhao, Chujun ^{[1
]}

Chen, Shuqing ^{[1
]}

Du, Juan ^{[1
]}

Tang, Pinghua ^{[1
]}

Jiang, Guobao ^{[1
]}

Zhang, Han ^{[1
]}

Wen, Shuangchun ^{[1
]}

Tang, Dingyuan ^{[2
]}

机构：

[1] Hunan Univ, Coll Phys & Microelect Sci, Minist Educ, Key Lab Micro Nanooptoelect Devices, Changsha 410082, Hunan, Peoples R China

[2] Jiangsu Normal Univ, Sch Phys & Elect Engn, Xuzhou 221116, Peoples R China

来源：

IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS | 2014年 / 20卷 / 05期

关键词：

Large energy; fiber laser; tunable; Q-switched; topological insulator; SEMICONDUCTOR SATURABLE ABSORBER; SINGLE DIRAC CONE; PULSE GENERATION; OPTICAL-DEPOSITION; CARBON NANOTUBES; GRAPHENE; BI2SE3; PHOTONICS; SURFACE; BI2TE3;

D O I：

10.1109/JSTQE.2013.2295196

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：

We report on the generation of large energy, widely wavelength tunable pulses in an erbium-doped fiber laser passively Q-switched by a topological insulator saturable absorber (TI-SA). The TI-SA is prepared through an optical deposition method. Its saturating intensity and modulation depth are measured to be about 57 MW/cm(2) and 22%, respectively. We show that the high modulation depth of TI-SA allows the generation of stable Q-switched pulses with per-pulse energy up to 1.5 mu J and its broadband saturable absorption favors the tunable Q-switching operation from 1510.9 nm to 1589.1 nm. Our study suggests that TI: Bi2Te3 could be a promising saturable absorber for both the high energy and broadband optical applications.

引用

页数：8

共 40 条

[1] Tunable graphene-based Q-switched erbium-doped fiber laser using fiber Bragg grating [J].