components for optical networking, namely lasers, receivers, transmitters, transponders, transceivers; optical switches, optical cross-connects, optical add/drop multiplexers, wavelength converters, wave guides; dispersion compensators; dynamic gain equalizers; optical filters, optical receivers; optical performance test and measurement devices, namely optical power monitors, optical wavelength meters, optical signal-to-noise ratio monitors, optical spectrum analyzers, and fault isolation indicators
Electrical and Scientific Apparatus