Process and device for simultaneously measuring the...

Details Process and device for simultaneously measuring the... Process and device for simultaneously measuring the...

G - Physics

01

B

33/112

G01B 11/02 (2006.01) G01B 11/00 (2006.01)

Patent

CA 1195839

- 21 - ABSTRACT OF THE DISCLOSURE The invention relates to a process and device for measuring the optical core - mechanical sheath concentricity and the optical core ellipticity of an optical fibre. The process consists of injecting a light beam into a fibre, which has been previously bared at one of its ends. The analysis of the near field of this fibre by a detector performing a relative rotary movement with respect to said fibre provides details on the core - sheath concentricity and the core ellipticity, by carrying out a narrow band detection at the rotational frequency and at double its frequency.

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