G - Physics – 01 – M
Patent
G - Physics
01
M
354/29, 73/53
G01M 11/00 (2006.01)
Patent
CA 1280824
ABSTRACT A method and apparatus is provided for measuring mode field radius in single mode optical fibres, in which an optical beam passing through a fibre is modulated by means of a spatial filter with a radial transmittivity distribu- tion of Gaussian characteristics. The intensity of the modulated beam is measured on the beam axis for different widths of Gaussian distribution curve, and the mode field radius is derived from both such intensity values and a parameter dependent on the width of the Gaussian distribu- tion curve.
523045
Caponi Renato
Coppa Gianni
Di Vita Pietro
Cselt - Centro Studi E. Laboratori Telecommunicazioni S.p.a.
Ridout & Maybee Llp
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