Optical communications products, namely, optical filters, optical signal processors and compensators, spectral and power monitors, power supplies, user interfaces, connectors, couplers, and control systems comprising computers for the operation of the foregoing; and subsystems comprising optical filters, optical signal processors and compensators, spectral and power monitors, power supplies, user interfaces, connectors, couplers, and control systems comprising computers for the operation of the foregoing
Electrical and Scientific Apparatus