A scalable quadratic nonlinear silicon photonics platform with printable entangled photon-pair sources

We present a the micro transfer printing of periodically polled nithium niobate onto CMOS-fabricated silicon nitride photonic integrated circuits. This hybrid platform enable state-of-the-art nonlinear and quantum applications while maintaining the great scalability demonstrated by silicon photonics.

https://arxiv.org/abs/2503.08783