On-chip stimulated Brillouin scattering

R. Pant, C. Poulton, H. McFarlane, L. Thevenaz, Duk-Yong Choi, S. J. Madden, B. Luther-Davies, B. J. Eggleton
2010 35th Australian Conference on Optical Fibre Technology  
We demonstrate on-chip stimulated Brillouin scattering (SBS) in an As 2 S 3 chalcogenide rib waveguide. SBS was characterized in a 7cm long waveguide with a cross-section 4μm x 850nm using the backscattered signal and pump-probe technique. The measured Brillouin shift and its full-width at half-maximum (FWHM) linewidth were ~7.7 GHz and 34 MHz, respectively. Probe vs. pump power measurements at the Brillouin shift were used to obtain the gain coefficient from an exponential fit. The Brillouin
more » ... it. The Brillouin gain coefficient obtained was 0.715 x 10 9 m/W. A probe gain of 16 dB was obtained for a CW pump power of ~300 mW.
doi:10.1109/acoft.2010.5929936 fatcat:5pptf5jrfnhateppaa7gt5pd5u