  We analyze a set of bidirectional wave experiments in a linear wave flume of
which some are conducive to integrable turbulence. In all experiments the
wavemaker forcing is sinusoidal and the wave motion is recorded by seven
high-resolution side-looking cameras. The periodic scattering transform is
implemented and power spectral densities computed to discriminate linear wave
motion states from integrable turbulence and soliton gas. Values of the
wavemaker forcing Ursell number and relative amplitude are required to be above
some threshold values for the integral turbulence to occur. Despite the
unavoidable slow damping, soliton gases achieve stationary states because of
the continuous energy input by the wavemaker. The statistical properties are
given in terms of probability density distribution, skewness and kurtosis. The
route to integrable turbulence, by the disorganization of the wavemaker induced
sinusoidal wave motion, depends on the non-linearity of the waves but equally
on the amplitude amplification and reduction due to the wavemaker feedback on
the wave field.
