Beilstein J. Nanotechnol.2019,10, 1065–1072, doi:10.3762/bjnano.10.107
communication. Here, we report the use of FONPs synthesized by a sol–hydrothermal method and used as a saturableabsorber (SA) to achieve nanosecond pulses in an erbium-doped fiber laser (EDFL) for the first time. The proposed fiber laser is demonstrated to have a narrow spectral width of around 0.8 nm and a
, and optical modulators.
Keywords: erbium laser; Fe3O4 nanoparticles; fiber lasers; saturableabsorber; Introduction
Fe3O4 nanoparticles (FONPs) are excellent magnetic materials, which allows for many applications in various fields such as medical transmission, microwave devices, and optical devices
absorption band does not increase because most of the FONPs have a non-stoichiometric structure [5][7]. Therefore, FONPs are a new and promising nonlinear optical material, which can be widely applied for various photonics applications.
The novel materials can be applied as a saturableabsorber (SA) in fiber
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Figure 1:
Diagram of the erbium-doped fiber laser with ring cavity and Fe3O4 nanoparticle saturable absorber.
Beilstein J. Nanotechnol.2018,9, 2730–2740, doi:10.3762/bjnano.9.255
based on randomly oriented SWCNTs in a PMMA film (all of them deposited on a 1 mm-thick fused silica substrate), and a commercial transmission-type semiconductor saturableabsorber (SESA, for Tm laser). For the Yb laser, the performance of all such nanostructured SAs is modest. In general, this is
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Figure 1:
Field emission scanning electron microscope (FESEM) images of ZnO nanorods grown hydrothermally on ...