Thales

François - Xavier Launay

Thomas Pastureaud

Raphael Lardat

Gérard Roux

Christophe Oubaiche

Romain Barreau

A holder and at least one terminal element that are configured and arranged with respect to one another so as to form a cavity of length &#x394;L bounded axially by two walls the relative position of which with respect to each other varies in the opposite direction to the variation in ambient temperature, an increase in temperature causing the walls to move closer together and vice versa. A linear structure incorporating the device sees its length decrease when temperature increases and vice versa. Electro-optical transducers comprising a piezoelectric actuator of linear structure that acts on the length of a segment of optical fiber that forms the laser source of the transducer, and having such a device incorporated into the actuator in order to compensate, by modifying the length of the segment of fiber, for the variations in wavelength induced in the laser by the variations in temperature.

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Sophia Antipolis, France

François - Xavier Launay