Opto-electronic components and devices, namely, optical fibres, electrical cords for exclusive use in optical fibres, connectors for optical fibres, connecting plugs, connecting jacks, laser diodes (LD), modules of laser diodes (LD Module), semi-conductor lasers, modules of semi-conductor lasers, light emitting diodes (LED), photo-LED and photo-diode (PD) modules, avalanche photo diodes, silicon wafers, compound semiconductor wafers, thermistors, circulators, transistors, optical memory cards...