Gain-induced spectral non-degeneracy in type-II parametric down-conversion
B. Taheri, D. Kopylov, M. Hammer, T. Meier, J. Förstner, P.R. Sharapova, ArXiv (2026).

Multiphoton, multimode state classification for nonlinear optical circuits 
D. Kopylov, C. Offen, L. Ares, B.E. Wembe Moafo, S. Ober-Blöbaum, T. Meier, P. Sharapova, J. Sperling, (n.d.).

Bipartite entanglement extracted from multimode squeezed light generated in lossy waveguides
D. Kopylov, T. Meier, P.R. Sharapova, APL Quantum 2 (2025).