1. Suppressing SBS Through Chaotic Phase Modulation Rafael G. Setra, Thomas E. Murphy, and Rajarshi Roy University of Maryland, College Park

2. Introduction to SBS  Stimulated Brillouin scattering (SBS) is a nonlinear interaction between optical and acoustical waves 2 Waves in SBS.

3. Significance of SBS  Limits transmitted power through fiber optic systems  An existing suppression method is phase modulation  We look at the possibility of chaotic phase modulation 3 Phase modulation setup.Actual setup.

4. Experimental Output Power 4 Output power due to various modulations.

5. Simulation Comparison 5 Output power due to no modulation.

6. Simulation Prediction 6

7. Conclusions  Chaotic phase modulation is effective in SBS suppression.  Developed simulation that accurately predicts SBS threshold.  Chaotic modulation is comparable to sine modulation. 7

8. Future Work Recover the original signal through a demodulation