Title :
Stimulated Brillouin scattering excited by a modulated pump wave in single-mode fibers
Author :
Lichtman, E. ; Waarts, R.G. ; Friesem, A.A.
Author_Institution :
Dept. of Electron., Weizmann Inst. of Sci., Rehovot, Israel
Abstract :
The effects of modulation on the gain of stimulated Brillouin scattering (SBS) are discussed. Three different modulation techniques, i.e. frequency shift keying (FSK), amplitude shift keying (ASK), and phase shift keying (PSK) are considered. The results show that the SBS threshold depends on the ratio between the spontaneous Brillouin linewidth and the bit rate. The SBS threshold for ASK and FSK is 6 dB higher at high bit rates, whereas the SBS threshold for PSK increases by 10dB for each factor of 10 increase in the bit rate.<>
Keywords :
amplitude modulation; frequency shift keying; optical fibres; optical modulation; phase shift keying; stimulated Brillouin scattering; ASK; FSK; PSK; SBS; amplitude shift keying; frequency shift keying; modulation; phase shift keying; single-mode fibers; spontaneous Brillouin linewidth; stimulated Brillouin scattering; Acoustic waves; Amplitude shift keying; Bit rate; Brillouin scattering; Electromagnetic scattering; Frequency shift keying; Light scattering; Optical fiber polarization; Optical fibers; Phase shift keying;
Journal_Title :
Lightwave Technology, Journal of
