Brillouin Amplification And Creating Light From Sound
Wednesday, June 23, 2010 - 09:40
in Physics & Chemistry
When light is used to transmit information, modulated light pulses travel along optical fibers, which can become weaker due to optical attenuation in the fiber and so are refreshed in signal regeneration stations along the way, where the signals are amplified and filtered. But when light itself, or more precisely its optical frequency, is the information, and when this information is to be transmitted with extreme precision, conventional amplification techniques reach their limits. read more