ELECTRONIC APPARATUS AND INSTRUMENTS, NAMELY OPTICAL AMPLIFIER AND LASER MODULES WITH CONTROL CIRCUITRY, LASER MODULES WITH OPTICAL MODULATORS AND CONTROL CIRCUITRY; OPTICAL APPARATUS AND INSTRUMENTS, NAMELY LASER ARRAYS IN PLANAR WAVEGUIDES, LASERS IN RARE-EARTH-DOPED PLANAR WAVEGUIDES NOT FOR MEDICAL USE, OPTICAL AMPLIFIERS, LOSS-LESS/AMPLIFYING DEVICES, OPTICAL POWER EQUALIZERS, OPTICAL MULTIPLEXERS, OPTICAL DEMULTIPLEXERS, OPTICAL FILTERS, OPTICAL ADD-DROP MULTIPLEXES, OPTICAL TRANSMITTERS, OPTICAL COMPONENTS, NAMELY, OPTICAL MODULATORS, OPTICAL LIGHT GUIDES, OPTICAL FIBERS, LIGHT CONDUCTING FILAMENTS, AND ACTIVE WAVEGUIDES; PARTS FOR THE ABOVE-MENTIONED GOODS AND ACCESSORIES FOR THE ABOVE-MENTIONED GOODS, NAMELY LASER DRIVES AND TEST AND CONTROL EQUIPMENT FOR TESTING THE PERFORMANCE OF AND CONTROLLING THE FUNCTION OF OPTICAL COMPONENTS
Electrical and Scientific Apparatus