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NOVEL DIELECTRIC NANOPARTICLES (DNP) DOPED NANO-ENGINEERED GLASS BASED OPTICAL FIBER FOR FIBER LASERкнига
- Авторы: Paul M.C., Kir'yanov A.V., Das S., Pal M., Bhadra S.K., Barmenkov Yu O., Martinez-Gamez A.A., Lucio Martinez J.L., Yoo S., Sahu J.K.
- Год издания: 2014
- Издательство: CRC PRESS-TAYLOR & FRANCIS GROUP
- Местоположение издательства: 6000 BROKEN SOUND PARKWAY NW,STE 300, BOCA RATON, USA, FL, 33487-2742
- Объём: 116 страниц
- ISBN: 978-1-4822-3102-1; 978-1-926895-79-6
- Монография
- DOI: 10.1201/b16966
- Аннотация: We have developed the technology for making of dielectric nano-particles (DNP) doped nano-engineered glass based optical fibers. Two kinds of DNP containing silica glass based Yb2O3 doped fibers are made successfully through solution doping (SD) technique. One: Yb2O3 doped yttria-rich alumino-silica nano-particles based optical fiber developed during drawing of D-shaped low RI resin coated large mode area (LMA) optical fiber from the modified preform which annealed at 1450-1550 degrees C for 3 hours under heating and cooling rates of 20 degrees C/min and other: Yb2O3 doped zirconia-germanium-alumino (ZGA) rich yttria-silica nano-particles based optical fibers developed during drawing of normal RI coated single mode optical fiber from the modified preform which annealed at 1000-1100 degrees C for 3 hr under heating and cooling rates of 20 degrees C/min. Fabrication of Yb2O3 doped yttria-rich alumino-silica nano-particles based D-shaped low RI coated large core optical fibers having core diameter around 20.0-30.0 micron was made. The size of DNP nano-particles was maintained within 5-10 nm under doping of 0.20 mole% of fluorine. The start fiber preforms are studied by means of EPMA, EDX, and electron diffraction analyses, revealing phase-separated nano-sized ytterbium-rich areas in their cores. There is a great need to engineer the composition as well as doping levels of different elements within the core glass during the preform making stages to generate phase-separated Yb2O3 doped DNP nano particles in the fiber. The matter concentrates on making of Yb2O3 doped DNP containing optical fibers along with material characterizations, study of spectroscopic properties, photo-darkening phenomena, and lasing characteristics. Such kind of nano-engineered glass based optical fibers shows good lasing efficiency with improved photodarkening (PD) phenomena compared to the standard silica glass based optical fibers.
- Добавил в систему: Кирьянов Александр Викторович