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Abstract

An optical transducer adapted to detect external mechanical actions or forces acting comprising at least one sensing optical path (5) adapted to transmit at least one sensing optical signal (b') and to emit at least one sensing output electrical signal (d) along with at least one reference path (4) adapted to emit at least one output electrical reference signal (e). Moreover, at least one portion (5') of the at least one optical path (5) is adapted to be exposed to external mechanical actions or forces, so that the transmission of the sensing optical signal (b') through the sensing optical path can be modified as a result of the mechanical actions or forces, so that a phase shift between the sensing electrical signal (d) and the reference electrical signal (e) is generated. Furthermore, the at least one reference path (4) comprises phase shifting means (11) adapted to maintain the phase shift between the at least one output sensing electrical signal (d) and the at least one output reference electrical signal (e) at a constant value in absence of any mechanical action or force exerted on the at least one sensing optical path (5), resulting in the working point or operating range of the transducer being kept within a range centered on a predefined phase shift, thus allowing improved sensitivity of the transducer.

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