Villar, A.Lohrmann, A.Bai, X.Vergoossen, T.Bedington, R.Perumangatt, C.Lim, H. Y.Islam, T.Reezwana, A.Tang, Z.Chandrasekara, R.Sachidananda, S.Durak, KadirWildfeuer, C. F.Griffin, D.Oi, D. K. L.Ling, A.2020-11-202020-11-202020-07-202334-2536http://hdl.handle.net/10679/7117https://doi.org/10.1364/OPTICA.387306Global quantum networks for secure communication can be realized using large fleets of satellites distributing entangled photon pairs between ground-based nodes. Because the cost of a satellite depends on its size, the smallest satellites will be most cost-effective. This Letter describes a miniaturized, polarization entangled, photon-pair source operating on board a nano-satellite. The source violates Bell's inequality with a Clauser-Horne-Shimony-Holt parameter of 2.60 +/- 0.06. This source can be combined with optical link technologies to enable future quantum communication nano-satellite missions.engopenAccessarticle7773473700055069140000110.1364/OPTICA.3873062-s2.0-85090887871