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Optical fiber characterization by simultaneous measurement of the transmitted and refracted near field

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3 Author(s)
Gisin, N. ; Group of Appl. Phys., Geneva Univ., Switzerland ; Passy, R. ; Perny, B.

An experimental setup is presented which permits, in a routine way for R&D purposes, simultaneous measurement of the transmitted near field at 1300 nm and 1550 nm, and the refracted near field at 820 nm. A new method for the calibration of the refractive index is proposed. The obtained accuracy for the refractive index is dn±0.0002. The reproducibility of measurements of geometrical parameters like the mode field diameter, the core and cladding diameters, and concentricity error, is ±0.1 μm. Measurements of the mode field as a function of polarization state for four different hi-bi fiber are presented

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Lightwave Technology, Journal of  (Volume:11 ,  Issue: 11 )