摘要:
The present invention 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 present invention relates to an optical amplifier and an optical laser comprising the present optical fiber. In addition, the invention relates to a method of preparing nanoparticles in an aqueous solution having a predetermined pH, a method of manufacturing the present optical fiber comprising a heat treatment step to eliminate residual water and strengthen the nanoparticles, and uses of said optical fiber.
摘要:
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.
摘要:
A stimulated Raman effect (SRS) amplifying optical fibre comprising a core made up of a dielectric matrix capable of vibrating at a given frequency (ω Raman ) under the effect of a pump signal. The optical fibre comprises at least one type of metallic nanostructures capable of generating surface plasmon resonance (SPR) in the optical fibre, the metallic nanostructures having a shape and composition such that the frequency of their surface plasmon resonance (ω plasmon ) corresponds to the frequency of the pump signal (ω pump ) and/or the frequency of the optical signal transmitted in the optical fibre (ω signal ). At least one of the dimensions of the metallic nanostructures is comprised between 1 nm (nanometer) and 20 nm (nanometer) and the total volume of the metallic nanostructures is less than 2% of the total volume of the core of the optical fibre. The fibre has an increased Raman Figure of Merit (FOM).
摘要:
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.
摘要:
The invention relates to an optical fiber (1) comprising from the center to the periphery a central core (4) adapted to transmit an optical signal, and an optical cladding (5) adapted to confine the transmitted optical signal in the central core (4), the optical fiber (1) being composed of a dielectric matrix (3) comprising metallic nanostructures (2) adapted to increase the second order non linearity effect of the optical fiber (1) wherein the phase mismatch between two incoming waves into the optical fiber (1) and an output wave from the optical fiber (1) defined by Δk = k 3 - k 1 - k 2 , is less than 10 4 radian per meter, where k 1 and k 2 are respectively the wave vectors of the first and the second incoming waves, and k 3 is the wave vector of the output wave.