Questions on Fiber Optics

1. What maximum frequency could be used for signals traveling in metal wires? In optical fibers?
2. How is an optical fiber made to transfer light from one location to another? What are its components?
3. What are repeaters in optical telecommunications?
4. What is the advantage of erbium doped fiber?
5. What causes distortion in optical fiber telecommunication? How is this different from the causes of distortion in radio signals?
6. What is the significance of the content of Jennifer Sweeney's poem? Of David Woo's poem?
7. What is atmospheric optical communication and why is it becoming more popular?