| 简介 |
The application relates to an amplifying optical fiber having a central core and an optical cladding surrounding the central core, wherein the central core is based on a silica matrix comprising nanoparticles, which nanoparticles are composed of a matrix material comprising doping ions of at least one rare earth element. The matrix of the nanoparticle is chosen to favor rare earth solubility and dispersion and to favor the amplification process. In addition, the application relates to an optical amplifier and an optical laser comprising the present optical fiber. The invention relates to a method of preparing nanoparticles by adding compounds comprising the elements forming the nanoparticle to an aqueous solution with pH in the range of 6-10 under stirring. Further the invention relates to a method of manufacturing the present optical fiber comprising a heating step to strengthen the nanoparticles. |
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