Thomson-csf

Chantal Moronvalle

Luigi d'Auria

Claude Puech

Andre Jacques

A coupler comprising a photodiode having a central passage and fitted on the end portion of a first optical fiber which is rigidly fixed to a casing, a second optical fiber being rigidly fixed to a sleeve slidably fitted within the casing and having an end-face located at an adjustable distance from an end-face of the first optical fiber and from the photodiode in order to adjust the light-energy extraction rate to a predetermined value, and comprising means for adjusting the spacing between fibers.

Optoelectronic coupler for optical fibers providing adjustable

The invention provides a substrate for positioning the end of one or more optical fibres in a reference plane. Each fibre is positioned by means of three right circular cylindrical dowels in a staggered arrangement on the flat trued face of a parallelepiped. The substrate may further comprise a single additional optical fibre bearing against the apertures of the transmission fibres and doing duty as a cylindrical lens for coupling each transmission fibre with the emissive zone of a laser diode.

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Paris, France

Chantal Moronvalle