Figure 3
From: Photon pair generation in hydrogenated amorphous silicon microring resonators
Coincidence and singles rate for a-Si device A.
Red crosses represent the detection rate of a single detector when the CW laser is tuned to the ring resonance wavelength, red triangles the detection rate when the CW laser is not tuned into the ring resonance and propagates through the waveguide only, and blue diamonds give the rate of coincidence counts between the two detectors when the CW is tuned into the ring resonance. The ring singles are joined with the red dashed line to help guide the eye, the red solid line is a linear fit to the waveguide singles, and the blue solid line is a quadratic fit to the coincidence count data. Error bars were smaller than the symbols.
