Figure 4
From: Photon pair generation in hydrogenated amorphous silicon microring resonators
(a) Calculated SFWM photon pair generation rate for a-Si:H devices. Error bars due to Poissonian error in measured count rate. (b) SFWM photon pair generation rate with x-axis rescaled. Solid lines are fit to the data using equation 12, and dashed lines indicate the case without nonlinear loss, with slope proportional to 
. The subplot compares the extrapolated fits from the a-Si:H data to a model for a c-Si micro-ring. The region of the main plot is indicated by the shaded area in the sub plot.
