  We explored by electronic Raman scattering the superconducting state of
Bi-2212 single crystal by performing a fine tuned doping study. We found three
distinct energy scales in A1g, B1g and B2g symmetries which show three distinct
doping dependencies. Above p=0.22 the three energies merge, below p=0.12, the
A1g scale is no more detectable while the B1g and B2g scales become constant in
energy. In between, the A1g and B1g scales increase monotonically with
under-doping while the B2g one exhibits a maximum at p=0.16. The three
superconducting energy scales appear to be an universal feature of hole-doped
cuprates. We propose that the non trivial doping dependence of the three scales
originates from Fermi surface topology changes and reveals competing orders
inside the superconducting dome.
