Zinc Oxide-Based Q-Switched Erbium-Doped Fiber Laser

被引：41
|
作者：
Aziz, N. A. [1 ]
Latiff, A. A. [2 ]
Lokman, M. Q. [1 ]
Hanafi, E. [1 ]
Harun, S. W. [1 ]
机构：
[1] Univ Malaya, Fac Engn, Dept Elect Engn, Kuala Lumpur 50603, Malaysia
[2] Univ Malaya, Photon Res Ctr, Kuala Lumpur 50603, Malaysia
来源：
CHINESE PHYSICS LETTERS | 2017年 / 34卷 / 04期
关键词：
13;
D O I：
10.1088/0256-307X/34/4/044202
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We demonstrate a Q-switched erbium-doped fiber laser (EDFL) using a newly developed zinc oxide-(ZnO) based saturable absorber (SA). The SA is fabricated by embedding a prepared ZnO powder into a poly(vinyl alcohol) film. A small piece of the film is then sandwiched between two fiber ferrules and is incorporated in an EDFL cavity for generating a stable Q-switching pulse train. The EDFL operates at 1560.4nm with a pump power threshold of 11.8mW, a pulse repetition rate tunable from 22.79 to 61.43 kHz, and the smallest pulse width of 7.00 mu s. The Q-switching pulse shows no spectral modulation with a peak-to-pedestal ratio of 62 dB indicating the high stability of the laser. These results show that the ZnO powder has a great potential to be used for pulsed laser applications.
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页数：3
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