A position detection system with fiber Bragg grating based optical sensors in surgical fields that enables real-time detection of the exact coordinates of the location to be operated in the human body in surgical fields. The position detection method with fiber Bragg grating based optical sensors in surgical fields, includes the steps of； obtaining data by Computerized Tomography (CT), Magnetic Resonance Imaging (MRI) and/or any other imaging method, mapping the data with the data received from a fiber Bragg grating based optical sensor device, detecting a position and/or an orientation of any point in an operated region in real-time by mapping the data, transferring the data mapped by defining a plurality of target points during an application and a target point defined by MRI, CT and/or any other imaging method continuously and in real-time to a monitor and/or a plurality of goggles in two and/or three-dimensions.L'invention a pour objet le système de détection de position avec des capteurs optiques à réseau de Bragg sur fibre dans des champs opératoires qui permettent la détection en temps réel des coordonnées exactes de l'emplacement à opérer dans le corps humain dans des champs opératoires.
