What More do Optical Fibres have?
- Optical fibres can do
more than
what copper wire or radio waves can do!
- they have more bandwidth
- they are smaller and
lighter for the same
information carrying capacity
- they have improved security
- In addition,
- a single fibre can transmit at the same time in
both directions
- two channels can be
superposed into a
single fibre; This is possible with a device called a
optical coupler.