Top Developments in Fiber Optics
Fiber optics dominates communications networks today, building on 50 years of research and development. What have been the technological advances in fiber optics since its inception?
1. Charles Kao won a Nobel Prize for showing how fiber could be used for communications by ______.
Correct Answer: Adding a cladding over the fiber to reduce loss
2. ______ developed the technology that allowed practical manufacture of optical fiber in quantity.
Correct Answer: Corning Glass
3. Single-mode fiber was needed for telecommunications applications because it offered ______.
Correct Answer: All of the above
4. The perfect material for fiber optic connector ferrules is ______.
Correct Answer: Ceramic
5. Wavelength division multiplexing (WDM) allows several channels of data in a single fiber at different wavelengths.
Correct Answer: True
6. WDM and hybrid fiber coaxial CATV networks depend on ______ as transmitters.
Correct Answer: Distributed feedback lasers
7. Passive optical networks for fiber to the home uses ______ instead of electronic switches.
Correct Answer: Optical splitters
8. The development of ______ made smaller cables and higher-fiber-count cables possible.
Correct Answer: Bend-insensitive fibers
9. Multimode fiber is a technology that may become obsolete.
Correct Answer: True
10. New technologies that promise to help fiber optic networks grow for the future include ______ fibers.
Correct Answer: All of the above
Score: