Multi-channel laser systems, test and measurement equipment including photonic test and measurement equipment, quality assurance systems including photonic quality assurance systems, diagnostic solutions for optical networks, system integration solutions for optical networks, networking modules, system controllers, filters, amplifiers and diagnostic and detector modules; passive optical components; wavelength division multiplexer components, systems and networks; coarse wavelength division multiplexer components, systems and networks; dense wavelength division multiplexer components, systems and networks; erbium doped fibre amplifier components and systems; Raman amplifier components and systems; laser and detector components; fibre-optic components and systems; optical fiber and waveguides; micro electro-mechanical components and systems; optical switching and routing systems; software for use with all the aforementioned goods