ELECTRICAL APPARATUS AND INSTRUMENTS, NAMELY, ELECTRO-OPTIC DEVICES, NAMELY, ASTIGMATIC LENSES, BULK MATERIAL DEVICES, DETECTORS, DIFFRACTIVE LENSES, ELECTRO-OPTIC COUPLES, FIBER OPTIC CABLE, HIGH FREQUENCY WAVE GUIDES, OPTICAL COUPLES, OPTICAL GAIN FIBER AMPLIFIERS, OPTICAL GRATINGS, OPTICAL LASERS, OPTICAL LOGIC GATES, OPTICAL PRISMS, OPTICAL RESONATORS, OPTICAL SWITCHES, OPTICAL TRANSMISSION SYSTEMS, OPTICAL WAVE GUIDES, PHOTONIC AMPLIFIERS, PHOTONIC BANDGAP REFLECTORS, PHOTONIC DETECTORS,...