Supercontinuum spectrum generation in a dispersion-flattened and decreasing fiber with two orthogonally polarized pulses was simulated and calculated. The research results indicated that the supercontinuum spectrum ge...
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Supercontinuum spectrum generation in a dispersion-flattened and decreasing fiber with two orthogonally polarized pulses was simulated and calculated. The research results indicated that the supercontinuum spectrum generated by two orthogonally polarized pulses is wider and flatter than that generated by single polarized pulse due to cross-phase modulation. The cross-phase modulation effect can enhance the supercontinuum spectrum generation. When the pump power of the input pulse is lower, the enhancement of supercontinuum spectrum generation by cross-phase modulation effect is more significant.
A new approach is proposed to enhance supercontinuum (SC) spectrum generation in A dispersion-decreasing optical fibre with a new dispersion profile. The chromatic dispersion D(λ, z) is a concave function of waveleng...
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A new approach is proposed to enhance supercontinuum (SC) spectrum generation in A dispersion-decreasing optical fibre with a new dispersion profile. The chromatic dispersion D(λ, z) is a concave function of wavelengths and has no zero-dispersion wavelengths over the whole or part of the fibre as D(λ, z) is positive. A flatter and much broader spectrum can be produced based on the scheme. The general criteria parameters are obtained for characterizing SC shapes in the optical fibres.
This article discusses development process of product quality and quality management conception. The structure model of computer aided quality system based on knowledge is proposed. Expert system based on knowledge is...
This article discusses development process of product quality and quality management conception. The structure model of computer aided quality system based on knowledge is proposed. Expert system based on knowledge is established to achieve computer aided quality management and control, and product quality management and control system is developed with the object of marine diesel engine.
The assemblies of a-Si solar cell encapsulated with ethylene-vinyl acetate copolymer (EVA) and polyvinyl fluoride (PVF) compound films by lamination process are tested indoors and outdoors. The results show that the i...
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The assemblies of a-Si solar cell encapsulated with ethylene-vinyl acetate copolymer (EVA) and polyvinyl fluoride (PVF) compound films by lamination process are tested indoors and outdoors. The results show that the initial efficiency of the a-Si solar cell is 5-6% and the efficiency appears to be steady around 4% after one year of outdoor exposure.
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