Figure 2
From: Internal dynamics of intense twin beams and their coherence
Numbers 
of photon pairs in modes with the Schmidt coefficients 
for pump powers P = 25 mW (yellow solid curve), 35 mW (blue), 100 mW (green) and 390 mW (red).
Density 
of spatio-spectral modes revealed by the Schmidt decomposition is also shown (dashed curve); 
for 
such that 
.
