Theoretical studies on frequency doubling in glass optical fibers in constant-intensity approximation |
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Authors: | ZH Tagiev |
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Institution: | a Azerbaijan Medical University, Mardanov Brothers Str. 98, AZ1269 Baku, Azerbaijan b Physics Department, Baku State University, Z. Khalilov Str. 23, AZ1148 Baku, Azerbaijan |
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Abstract: | Theoretical consideration of the second harmonic generation in the constant-intensity approximation with account of the inverse effect of the excited wave on a stimulation wave through account of the phase change of interaction waves is presented. The behavior of harmonic wave intensity in a fiber for different parameters of the problem has been studied, the self-action of the light both in glass optical fiber and inside the homogeneous medium has been analyzed. In this approximation a decrease of conversion efficiency and a change of parameters of the curves of synchronism versus the pump intensity, in particular, the change of positions of intensity minima that does not take place in the constant-field approximation, are observed. The propagation of a plane wave packet in the homogeneous medium with quadratic nonlinearity and in an optical fiber accompanied by the self-phase modulation and leading to the change of the Gaussian pulse spectrum is analyzed with account of the phase changes of all the interacting waves. |
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Keywords: | 42 65 Ky 42 79 Nv 42 81 &minus i |
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