A compact two-wave dichrometer of an optical biosensor analytical system for medicine D.P. Chulkov, V.M. Gusev, O.N. Kompanets, F.V. Vereschagin, S.G. Skuridin and Yu.M. Yevdokimov EPJ Web Conf., 132 (2017) 03050 Published online: 13 December 2016 DOI: 10.1051/epjconf/201713203050