Do different kinds of photon-pair sources have the same indistinguishability in quantum silicon photonics?

Do different kinds of photon-pair sources have the same indistinguishability in quantum silicon photonics?

J. Lee, A. Baldazzi, M. Sanna, S. Azzini, J. T. Ahn, M. Lee, Y. Sohn, and L. Pavesi

 
Photonics Research Vol. 11, Issue 11, pp. 1820-1837 (2023) 

 

DOI: 10.1364/PRJ.489869