Simple technique to estimate spot sizes from far fields of single-mode fibres

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Date
1988
Authors
Priye, V
Gogia, Y
Pal, B P
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Abstract
Accurate estimates of two characteristic spot sizes, W rms and Wp, based on measurements of far-field angles &thetas;-3 dB and &thetas;-40 dB made on two single-mode fibres of widely differing refractive index profiles (RIPs) are reported. The results including their near-field profiles are compared with those deduced from the measured RIPs of the fibres, and are found to be in good agreement and well within the measurement accuracy
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Keywords
far-field angles, single-mode fibres
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