9 Optical receivers; Optical transceivers; Optical apparatus, namely, optical communication apparatus; Optical instruments, namely, optical transmitter, optical receivers, optical transceivers, optical transponders; Optical semiconductor amplifiers; Optical condensers; Optical filters; Optical fibres; Optical encoders; Optical cables; Electro-optical sensors; Optical sensors; Optical readers; Optical connectors; Optical semiconductors; Optical electronic components, namely, lasers, detectors, modulators, drivers, amplifiers, digital signal processors, Serializer/Deserializer (SerDes); Optical measuring components, namely, photodiodes, filters, gratings, wavelength monitors, wavelength meters, wavelength lockers; Optical frequency metrology devices; Photo electron spectroscopy analyzers, not for medical purposes; Optical communications instruments, namely, optical spectrum analysers, wavelength meters, bit error rate testers, signal analysers, network analyzers; Integrated circuit; Electronic circuits; Integrated circuits; Integrated circuit boards; Integrated circuit cards; Integrated circuit modules; Integrated circuit module; Integrated circuit memories; Electronic circuit cards; Electronic circuit board; Electronic circuit boards; Printed circuit boards incorporating integrated circuits; Circuit boards provided with integrated circuits; Integrated circuit chips; Integrated circuit memory cards; Hybrid integrated circuits; Integrated electronic circuits; Integrated electrical circuits; Electronic integrated circuits; Integrated electric circuits; Electronic memory integrated circuit chips; Application specific integrated circuits; Connectors for electronic circuits; Large scale integrated circuits; Blank integrated circuit cards, blank smart cards; Electronic chips for the manufacturer of integrated circuits; Electronic chips for the manufacture of integrated circuits; Integrated circuits for enhanced graphics and video rendering; Integrated circuits for enhancing graphical and video display; Integrated circuit memory cards for use in playing electronic musical instruments; Optical fibre sensors; Optical fibers, Nonlinear optical fibres, light conducting filaments; Optical fibres, light conducting filaments