Coupling an elliptical Gaussian beam into a multimode step-index fiber

Horng, Jiann-Tsorng; Chang, David C.

doi:10.1364/ao.22.003887

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Power Coupling Efficiency1

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“…The power carried by the Gaussian beam using a full-wave analysis based on the formulation of electric and magnetic components as [6] shown in the Figure 1 is derived by…”

Section: Power Coupling Efficiencymentioning

confidence: 99%

Power Coupling Efficiency Enhancement in Multimode Step-Index Fiber Using Refractive and Diffractive Microlenses

Selvanandan

Anbarasan

2010

International Journal of Optics

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A novel study has been undertaken for the coupling efficiency enhancement on planar (refractive and diffractive) microlenses as coupling elements with various geometrical shapes in fibre optics communication. When the dispersion of the planar diffractive microlens is expressed in terms of an Abbe number, it is easy to solve for the refractive and diffractive power coupling efficiency that result in a single material. Coupling loss is reduced with microlens used as coupler even when increasing wavelength of the Gaussian beam. A slight difference of power coupling efficiency is observed with the different direction of electric polarisation for a Gaussian beam of large spot size at its waist due to coupling property has been discussed and shown to agree well with theoretical model.

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“…The power carried by the Gaussian beam using a full-wave analysis based on the formulation of electric and magnetic components as [6] shown in the Figure 1 is derived by…”

Section: Power Coupling Efficiencymentioning

confidence: 99%