Optical communications components, namely, [ optical multiplexers/demultiplexers, ] optical wavelength filters, [ optical isolators, optical circulators, polarization beam combiners, optical splitters, polarization controllers, optical delay lines, optical attenuators, ] optical fibers with a lens [, and optical wave plates ]; [ Optical power meters and detectors, namely, optical pulse-duration monitors, polarization monitors, polarization-dependent meters and detectors, and photocurrent sens...