An optical probe , the optical probe being at its proximal end optically connectable to an associated photodetector and an associated radiation source, the probe having an optical guide capable of connecting the distal end with the proximal end, the optical probe having at its distal end an optical converter circuit , said circuit comprising: - an application device , the application device being arranged for monitoring and/or manipulation at the distal end of the probe, the application device being arranged for generating second data (D_R) indicative of the functionality of the application device, and - an optoelectronic device , the optoelectronic device being arranged for converting a first radiation beam into electrical energy and for receiving first data comprised in the first radiation beam, the first data being related to the functionality of the application device, the optoelectronic device further being arranged for emitting a second radiation beam towards the associated photodetector, the second radiation beam comprising the second data, the optoelectronic device further having the capability of, upon receiving said first radiation beam: - converting said first radiation beam into electrical energy and for receiving said first data, and - emitting said second radiation beam towards the associated photodetector, said emission being inducible by the incoming first radiation beam, wherein the optical converter circuit is powered by said electric energy in the first radiation beam and the optoelectronic device is configured to perform photo-induced electroluminescence (PIEL). - an application device , the application device being arranged for monitoring and/or manipulation at the distal end of the probe, the application device being arranged for generating second data (D_R) indicative of the functionality of the application device, and - an optoelectronic device , the optoelectronic device being arranged for converting a first radiation beam into electrical energy and for receiving first data comprised in the first radiation beam, the first data being related to the functionality of the application device, the optoelectronic device further being arranged for emitting a second radiation beam towards the associated photodetector, the second radiation beam comprising the second data, the optoelectronic device further having the capability of, upon receiving said first radiation beam: - converting said first radiation beam into electrical energy and for receiving said first data, and - emitting said second radiation beam towards the associated photodetector, said emission being inducible by the incoming first radiation beam, wherein the optical converter circuit is powered by said electric energy in the first radiation beam and the optoelectronic device is configured to perform photo-induced electroluminescence (PIEL). the optoelectronic device further having the capability of, upon receiving said first radiation beam: - converting said first radiation beam into electrical energy and for receiving said first data, and - emitting said second radiation beam towards the associated photodetector, said emission being inducible by the incoming first radiation beam, - converting said first radiation beam into electrical energy and for receiving said first data, and - emitting said second radiation beam towards the associated photodetector, said emission being inducible by the incoming first radiation beam, wherein the optical converter circuit is powered by said electric energy in the first radiation beam and the optoelectronic device is configured to perform photo-induced electroluminescence (PIEL). <EOS>