Q-switched double-clad Ytterbium-doped fiber laser using MoS2 flakes saturable absorber

被引：6
作者：
Tey, K. L. [1 ]
Rahman, M. F. A. [2 ,5 ]
Rosol, A. H. A. [4 ]
Rusdi, M. F. M. [2 ]
Mahyuddin, M. B. H. [2 ]
Harun, S. W. [2 ]
Latiff, A. A. [3 ]
机构：
[1] Kumpulan Abex Sdn Bhd 167376M, Shah Alam 40400, Selangor, Malaysia
[2] Univ Malaya, Fac Engn, Dept Elect Engn, Kuala Lumpur 50603, Malaysia
[3] Univ Malaya, Photon Res Ctr, Kuala Lumpur 50603, Malaysia
[4] Univ Teknol Mara, Fac Elect Engn, Shah Alam 40450, Selangor, Malaysia
[5] Univ Tekn Malaysia Melaka, Fac Engn Technol FTK, Kampus Teknol, Durian Tunggal 76100, Melaka, Malaysia
来源：
INTERNATIONAL TECHNICAL POSTGRADUATE CONFERENCE, 2017 | 2017年 / 210卷
关键词：
Fiber lasers; pulsed laser; passive saturable absorber and mechanical exfoliation; CARBON NANOTUBES;
D O I：
10.1088/1757-899X/210/1/012054
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
By sandwiching MoS2 thin flakes between two fiber ferrule connectors in the ring cavity, we successfully demonstrate the passive Q-switched fiber laser operation. The cavity consists of all-fiber double-clad ytterbium-doped fiber (YDF) as a gain medium and MoS2 tape as a saturable absorber (SA). The SA was prepared from a commercial MoS2 crystal (similar to 99.8 % purity) through mechanical exfoliation process. A piece of 1 mm x 1 mm tape contains MoS2 thin flakes was sandwiched between two fiber connectors. By controlling loss and gain in the cavity, stable Q-switching operation were generated. The repetition rate was tunable from 4.8 kHz to 17.2 kHz as the pump power is varied from 753 mW to 1133 mW. The obtained pulse width is also narrowed from 21.3 mu s to 10.44 mu s with the same variation of pump power.
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页数：5
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