The present invention concerns an optical fibres connector for an optoelectronic active implantable medical device (AIMD) for implantation in a living body, said optical fibres connector comprising a male component (M) coupled to a first set of optical fibres,a female component (F) coupled to a second set of optical fibres or optical elements, and a coupling component (C) for reversibly locking the male and female components in a coupled position, wherein the first set of optical fibres is in perfect alignment with the second set of optical fibres or the optical elements, wherein -the coupling component comprises a fixed element (40f) and a rotatable element (40r) being rotatable about the first and/or second longitudinal axis, Z1, Z2, with respect to the fixed element (40f), all optical fibres (41f) and optical elements of the connector remaining static upon rotation of the rotatable element, -reversibly locking the male and female components in the coupled position is achieved by rotating the rotatable element with respect to the fixed element, -all elements of the coupling component are attached to the male and/or female components -the male component and any element of the coupling component attached thereto have a dimension normal to the second longitudinal axis, Z2, inscribed in a circle having a diameter of not more than 15 mm and preferably of not more than 10 mm, more preferably not more than 7 mm.La présente invention concerne un connecteur de fibres optiques pour un dispositif médical implantable actif (AIMD) optoélectronique destiné à une implantation dans un corps vivant, ledit connecteur de fibres optiques comprenant un composant mâle (M) couplé à un premier ensemble de fibres optiques, un composant femelle (F) couplé à un second ensemble de fibres optiques ou d'éléments optiques, et un composant de couplage (C) pour verrouiller de manière réversible les composants mâle et femelle dans une position couplée, le premier ensemble de fibres optiques étant
