Large diameter coreless fiber as a saturable absorber for erbium doped fiber laser cavity based on multimode interference

被引：5
|
作者：
Mohammed, Dunya Zeki [1 ,2 ]
Al-Janabi, Abdulhadi [1 ]
机构：
[1] Univ Baghdacl, Inst Laser Postgrad Studies, Baghdad, Iraq
[2] Madenat Alelem Univ Coll, Baghdad, Iraq
来源：
OPTICAL FIBER TECHNOLOGY | 2019年 / 50卷
关键词：
Fiber lasers; Q-switched; Multimode interference; OXIDE NANOPARTICLES; PRINCIPLES;
D O I：
10.1016/j.yofte.2019.04.002
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 demonstrated a Q-switched erbium-doped fiber laser (EDFL) based on large diameter coreless fiber without intra-cavity tuning element for the first time. A single mode fiber -coreless fiber -single mode fiber (SNCFS) structure was employed as a passive Q-switcher relies on Kerr nonlinearity associated with mull-mode interference (MMI) effect. By splicing 10 cm of 125 mu m in diameter coreless fiber (NCF) between two single mode fibers (SMFs), C-band Q-switched EDFL with 3-dB bandwidth of 0.138 nm was successfully obtained, making it a simple, compact and easily handling modulation device. A stable Q-switched pulses were achieved with a pump threshold of 188 mW. Pulse repetition rate ranges from 73.3 to 92.0 kHz, minimum pulse width of 3.5 mu s and maximum energy of 50.9 nJ were recorded.
引用
收藏
页码：212 / 215
页数：4
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