PbS/SiO2 co-doped nano integrated tapered optical fiber amplifier and preparation method thereof
A tapered optical fiber and amplifier technology, applied in the field of optical fiber technology and nanomaterial preparation, can solve the problems of low luminous efficiency, high surface activity, single structure, etc., and achieve the effects of reducing refractive index, high dispersibility, and easy operation
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[0027] see figure 1 and figure 2 , a PbS / SiO 2 Co-doped nano-integrated tapered fiber amplifier, including tapered fiber 1 and nano-film 2, the fiber used in the tapered fiber 1 is a single-mode fiber with a core diameter of 9 μm and a fiber diameter of 125 μm, using fused tapered Machine drawn into a tapered optical fiber 1 . The nanofilm 2 is composed of PbS(2-1) and SiO 2 (2-2) Nanomaterials are alternately deposited. The atomic layer deposition technology is used to deposit sequentially on the surface-activated tapered optical fiber 1 . The gas-phase precursors of the Pb source used are: lead bis(2,2,6,6-tetramethyl-3,5-heptanedionate), Bis(2,2,6,6-tetramethyl-3,5- heptanedionato)lead(II), Pb(TMHD) 2 ; The precursor material of S used is H 2 S and N 2 mixture. The gas-phase precursor of the Si source used is: diisopropylaminosilane (N,N-bis(1-methyl)silanamine); the oxygen source is ozone (O 3 ). Fluorescence spectral range of amplifying fiber: 1100 nm – 1700 n...
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