Q -Switched Erbium-Doped Fiber Laser Based on Silver Nanoparticles as a Saturable Absorber

We demonstrated saturable absorbers (SAs) based on silver nanoparticles (SNPs) by depositing them on the end facet of the fiber. The SNPs-based SAs showed large modulation depths and high maximum transmittances. With one of the SNPs-based SA, we built a passively Q-switched erbium-doped fiber laser...

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Published inIEEE photonics technology letters Vol. 28; no. 2; pp. 135 - 138
Main Authors Guo, Hao, Feng, Ming, Song, Feng, Li, Haoyu, Ren, Aibing, Wei, Xukang, Li, Yigang, Xu, Xiaoxuan, Tian, Jianguo
Format Journal Article
LanguageEnglish
Published IEEE 15.01.2016
Subjects
Absorption
Deposition
erbium-doped fiber laser
Fiber lasers
Gold
Modulation
Nanoparticles
Optical fiber devices
Optical fibers
Optimized production technology
Photonics
Pumps
Q-switched fiber laser
Repetition
saturable absorber
Silver
Silver nanoparticles
saturable absorber
erbium-doped fiber laser
Silver nanoparticles
Q-switched fiber laser
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Summary:We demonstrated saturable absorbers (SAs) based on silver nanoparticles (SNPs) by depositing them on the end facet of the fiber. The SNPs-based SAs showed large modulation depths and high maximum transmittances. With one of the SNPs-based SA, we built a passively Q-switched erbium-doped fiber laser (EDFL). Self-started Q-switching at 1564.5 nm in the EDFL was achieved for a threshold pump power of 19.9 mW; 2.4-μs pulses with a repetition rate of 58.5 kHz and maximum single pulse energy of 132 nJ were achieved at a pump power of 139 mW. The obtained results showed the possibility of SNPs serving as a high performance SA for a Q-switched fiber laser.
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ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2015.2487521