Figure 2

The SC spectrum (in green) with SOI waveguide W1. The pump spectrum (blue dashed line) is centered at ~1.9 μm. The SCG extends from 1.1 μm to over 2.4 μm (18 pJ coupled energy). The dotted signal was measured with coupled energy of 4 pJ. Note that the noise level difference between the solid and dotted curves is due to the change in the sensitivity level of the spectrum analyzer.