Optical Demodulation and Amplification of FSK Signals Using AlGaAs Lasers
01 January 1988
Stimulated Brillouin scattering is used as a narrowband amplifier to demodulate and amplify FSK signals at bit rates up to 250 Mb/s. Gain of as much as a factor of 1000 is obtained for a pump power of 12 mW. Both pump and signal lasers are simple AlGaAs lasers.