Pabively Q-switched erbium-doped fiber laser using Fe3O4-nanoparticle saturable absorber

Xuekun Bai, Chengbo Mou, Luxi Xu, Shaofei Wang, Shengli Pu, Xianglong Zeng

Research output: Contribution to journalArticle

Abstract

We experimentally demonstrate pabively Q-switched erbium-doped fiber laser (EDFL) operation using a saturable absorber (SA) based on Fe3O4 nanoparticles (FONPs). As a type of transition metal oxide, the FONPs have a large nonlinear optical response and fast response time. The FONPbased SA pobebes a modulation depth of 8.2% and nonsaturable absorption of 56.6%. Stable pabively Q-switched EDFL pulses with an output pulse energy of 23.76 nJ, a repetition rate of 33.3 kHz, and a pulse width of 3.2 μs were achieved when the input pump power was 110mW. The laser features a low threshold pump power of > 15mW.

Original languageEnglish
Article number42701
JournalApplied Physics Express
Volume9
Issue number4
DOIs
Publication statusPublished - 4 Mar 2016

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