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2 January 1998 Coupled mode analysis of second harmonic generation in optical fibers
Hitesh Mehta, M. R. Shenoy, K. Thyagarajan
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Proceedings Volume 3211, International Conference on Fiber Optics and Photonics: Selected Papers from Photonics India '96; (1998) https://doi.org/10.1117/12.345556
Event: International Conference on Fiber Optics and Photonics: Selected Papers from Photonics India '96, 1996, Madras, India
Abstract
The observation of Second Harmonic Generation (SHG), in centrosymmetric silica optical fibres stimulated great theoretical and experimental interest, in the study of this phenomenon with potential applications. SHG could be observed mainly in Ge doped or Ge-P doped silica fibres, and it has been established that some doping is essential for SHG in optical fibres. Several physical models have been proposed to explain this phenomenon, and almost all the models explain the origin of this x(2) effect through the x(3) effect in silica fibres. In this paper, we present a coupled mode analysis to study SHG in optical fibres. Both ‘seeded’ and ‘unseeded’ SHG have been analysed, taking into consideration the transverse modal distribution in the fibre. Details on our experimental efforts to observe SHG in Ge doped optical fibres are also presented.
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Hitesh Mehta, M. R. Shenoy, and K. Thyagarajan "Coupled mode analysis of second harmonic generation in optical fibers", Proc. SPIE 3211, International Conference on Fiber Optics and Photonics: Selected Papers from Photonics India '96, (2 January 1998); https://doi.org/10.1117/12.345556
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KEYWORDS
Optical fibers
Second-harmonic generation
Harmonic generation
Silica
Germanium
Doping
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