1,721,561 research outputs found
Microstructured and standard optical fibers for the detection of relevant components in biological fluids
No full textBiosensor optical fiber platform for the detection of relevant components in biological fluids
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Dual-Wavelength Passively Q-Switched Ytterbium-Doped Fiber Laser Based on Aluminum Oxide Nanoparticle Saturable Absorbers
No full textWe report on generation of a dual-wavelength, all-fiber, passively Q-switched ytterbium-doped fiber laser using
aluminum oxide nanoparticle (Al2O3-NP) thin film. A thin film of Al2O3 was prepared by embedding Al2O3-NPs
into a polyvinyl alcohol (PVA) as a host polymer, and then inserted between two fiber ferrules to act as a saturable
absorber (SA). By incorporating the Al2O3-PVA SA into the laser cavity, a stable dual-wavelength pulse output
centered at 1050 and 1060.7nm is observed at threshold pump power of 80mW. As the pump power is gradually
increased from 80 to 300mW, the repetition rate of the generated pulse increases from 16.23 to 59 kHz, while the
pulse width decreases from 19 to 6 s. To the best of our knowledge, this is the first demonstration for this type
of SA operating in the 1 m region
Single Air-Hole Ring Polygonal Photonic Crystal Fibers with Reduced Bending Loss and Field Distortion
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