If I had to guess, I'd attribute the gap in customer satisfaction between Spectrum and Verizon Fios to technology. A 100% fiber-optic connection, like the one you get with Verizon Fios ...

The growing use of supercontinuum lasers, which provide an output that spans a broad spectrum ... sales and marketing manager of acousto-optic devices at Brimrose Corporation of America, the ...

Interferometers, devices that can modulate aspects of light, play the important role of modulating and switching light signals in fiber-optic communications ... to control the spectrum of light ...