9 Scientific, surveying, optical, measuring, signaling and monitoring apparatus and instruments, namely, optical transmitters and receivers, optical amplifiers, optical modulation analyzers; scientific testing and measuring instruments and devices, namely, optical transmitters and receivers, optical amplifiers, optical power meter, variable optical attentuators, pulse analyzer, frequency resolved optical gating, transceiver test systems, insertion loss tester, physical layer testing, wafer test systems, Photonic Doppler Velocimetry test systems, coherent modulation test systems; data capture, tracking and management instruments and apparatus, namely, optical power meters, optical modulation analysers in the field of photonics; downloadable computer programs and software for use in data capturing, managing and tracking in the field of photonics; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity, namely, bit-error-rate testers, pulse pattern generators, optical to electrical converters, electrical to optical converters, electrical digitisers, sampling oscilloscopes, clock recovery units; optical transmitters, receivers and analyzers; optical, electrical and optical-electrical converters and switches; downloadable computer software for use in testing, measuring and reporting output in the field of photonics; downloadable software for testing, measuring and reporting output by means of laser technology in the field of photonics; downloadable application software for mobile devices for use in testing and measuring output in the field of photonics; opto-electronic systems, namely, wafer test systems, Photonic Doppler Velocimetry test systems, coherent modulation test systems, optical range finders, laser targeting systems; passive optical systems and lines, namely, comprised of wavelength demultiplexers, optical splitter, optical combiners; optical devices and instruments, namely, tunable lasers, DFB lasers, SLED sources, optical switches, variable optical attenuators, MEMS optical switches, polarization controlers, polarimeters; apparatus and instruments for generating, switching, combining, amplifying, regenerating optical signals, namely, EDFA amplifiers, optical amplifiers, optical collimators, optical switches; optical amplifiers; optical modulators; all of the foregoing also employing or utilizing photonics; parts and fittings for the foregoing