On-Chip Stimulated Brillouin Scattering

Publisher:
Optical Soc Amer
Publication Type:
Journal Article
Citation:
Optics Express, 2011, 19 (9), pp. 8285 - 8290
Issue Date:
2011-01
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We demonstrate on-chip stimulated Brillouin scattering (SBS) in an As2S3 chalcogenide rib waveguide. SBS was characterized in a 7cm long waveguide with a cross-section 4£gm 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 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.
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