  We propose a new method of generating triggered entangled photon pairs with
wavelength on demand. The method uses a micro-structured
semiconductor-piezoelectric device capable of dynamically reshaping the
electronic properties of self-assembled quantum dots (QDs) via anisotropic
strain-engineering. Theoretical models based on kp theory in combination with
finite-element calculations show that the energy of the polarization-entangled
photons emitted by QDs can be tuned in a range larger than 100 meV without
affecting the degree of entanglement of the quantum source. These results pave
the way towards the deterministic implementation of QD entanglement resources
in all-electrically-controlled solid-state-based quantum relays.
