Broadband tuning in a passively Q-switched erbium doped fiber laser (EDFL) via multiwall carbon nanotubesipolyvinyl alcohol (MWCNT/PVA) saturable absorber

被引：9
作者：
Ahmad, H. [1 ,2 ]
Hassan, S. N. M. [1 ]
Ahmad, F. [2 ]
Zulkifli, M. Z. [1 ]
Harun, S. W. [1 ]
机构：
[1] Univ Malaya, Photon Res Ctr, Kuala Lumpur 50603, Malaysia
[2] Univ Teknol Malaysia, Dept Elect Engn UTMspace, Kuala Lumpur 54100, Malaysia
来源：
OPTICS COMMUNICATIONS | 2016年 / 365卷
关键词：
MWCNT/PVA; Saturable absorber; Q-switching; Erbium-doped fiber laser; Broad band tuning range; GRAPHENE; NANOTUBES;
D O I：
10.1016/j.optcom.2015.12.004
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
An MWCNIT/PVA-based Q-switched erbium-doped fiber laser (EDFL) that uses a tunable bandpass filter (TBPF) as the wavelength tuning and filtering mechanism to achieve a broadband tuning range is proposed and demonstrated. The tuning range of the generated Q-switched pulses covered a wide wavelength range of 50 nm, which spanned from 1519 nm to 1569 nm and corresponded to the S- and C-band regions. In addition, the lasing and Q-switching operations had low thresholds of 8.9 mW and 22.4 mW respectively. The highest pulse energy of 52.13 nJ was obtained at an output wavelength of 1569 nm, with a corresponding repetition rate of 26.53 kHz and pulse width of 6.10 us, at the maximum power of 114.8 mW. (C) 2015 Published by Elsevier B.V.
引用
收藏
页码：54 / 60
页数：7
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