for the rare earth doped pumped laser amplifier
Any field of technology innovation by the corresponding materials to promote the rapid development of science, the development of optical communication technology is broad and profound impact on all aspects of people's lives, promoting social progress. Erbium-doped planar waveguide amplifiers (EDWA) is the integrated optics, optical communication system an important part of the process can compensate for various types of optical transmission loss. Organic and inorganic composite materials as a new type of optical waveguide amplifiers, its high flexibility, versatility, integration, and ease of processing and other economic characteristics of the EDWA has shown a strong prospect, a lot of preparation by wet chemical methods high doping concentration, small size, good compatibility with organic and inorganic nano-particles of polymer optical waveguide with low optical loss materials research is to determine the inorganic-organic hybrid materials can really practical optical waveguide key issues. This thesis is based on this idea, from the preparation of inorganic nanoparticles doped with rare earth starting the use of microemulsion method, respectively, pass into the moist air method, was prepared by impregnation and other methods of rare earth doped silica nanoparticles; again the presence of rare-earth salt hydrolysis of tetrabutyl titanate in the surface of silica nanoparticles coated with titanium dioxide, successfully prepared a variety of rare earth doped TiO2 @ SiO2 core-shell nanoparticles; this paper also Nanoparticles Prepared mechanism was discussed, according to mechanism of aggregation proposed by activated carbon adsorption of silica nanoparticles protected to prevent agglomeration during heat treatment method. In addition, we prepared a surface modified with oleic acid erbium ytterbium co-doped lanthanum fluoride nanoparticles synthesized it with our new hybrid fluorinated resist the compound, using spin-coating technique, preparation of organic-inorganic hybrid of the film, the film's thermal, optical and other properties were characterized, the results show that the hybrid materials produced to meet the requirements of optical waveguide amplifiers, we are waveguide amplifier device fabrication aspects of the attempt.
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