Passively mode-locked fiber laser by a cell-type WS(2) nanosheets saturable absorber

A cell-type saturable absorber has been demonstrated by filling the single mode photonic crystal fiber (SMPCF) with tungsten disulfide (WS(2)) nanosheets. The modulation depth, saturable intensity, and non-saturable loss of this SA are measured to be 3.53%, 159 MW/cm(2) and 23.2%, respectively. Base...

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Detalles Bibliográficos
Autores principales: Yan, Peiguang, Liu, Aijiang, Chen, Yushan, Wang, JinZhang, Ruan, Shuangchen, Chen, Hao, Ding, Jinfei
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2015
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4515829/
https://www.ncbi.nlm.nih.gov/pubmed/26213180
http://dx.doi.org/10.1038/srep12587
Descripción
Sumario:A cell-type saturable absorber has been demonstrated by filling the single mode photonic crystal fiber (SMPCF) with tungsten disulfide (WS(2)) nanosheets. The modulation depth, saturable intensity, and non-saturable loss of this SA are measured to be 3.53%, 159 MW/cm(2) and 23.2%, respectively. Based on this SA, a passively mode-locked EDF laser has been achieved with pulse duration of 808 fs and repetition rate of 19.57 MHz, and signal-noise-ratio (SNR) of 60.5 dB. Our results demonstrate that the cell-type WS(2) nanosheets SA can serve as a good candidate for short-pulse mode locker.

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