9 Photonic components and systems for use in optical communication networks, namely, optical transceivers; electronic and optical communication instruments and components, namely, optical transceivers; optical apparatus, instruments and devices for measuring, interrogating and processing optical signals; systems relying on Dense Wavelength Division Multiplexing (DWDM) optical System-on-Chip technology, namely, digital transceivers; indium phosphide-based photonic components, namely, integrated circuits; optical circuits, namely, integrated circuits; photonic integrated circuits; optical circuits with electronic circuits, namely, integrated circuits; opto-electronic integrated circuits; hybrid integrated opto-electronic circuits; monolithically integrated opto-electronic circuits; chips with photonic components, namely, semiconductors chips; optical semiconductor chips, namely, semiconductors chips; optical receivers; optical transceivers; optical transmitters; optical modulators; fiber-optic components, namely, fiber-optic transceivers; lasers for non-medical purposes; tunable lasers for non-medical purposes; optical detectors; high-speed optical detectors; optical sensors; optical monitoring units, namely, electronic devices for monitoring optical parameters; channel monitoring units, namely, wireless controllers to monitor optical channels; single or multi-stage Mach-Zehnder Modulators (MZM/MZI) in the nature of an optical device for controlling the amplitude of an optical wave; optical waveguide devices; arrayed waveguide gratings (AWG) in the nature of optical multiplexers; AWG multiplexers; AWG demultiplexers; optical semiconductor amplifiers; optical multiplexers; optical demultiplexers; optical gain equalizers, namely, equalizers for use in optical networks; optical attenuators for attenuating optical signals; optical switches in the nature of an optical device that switches optical signals from one channel to another; optical network routers; electric optical power devices, namely, taps; optical signal splitters for optical apparatus; fiber-optic couplers; structural parts and fittings for all of the aforesaid goods