Chirped photonic crystal for spatially filtered optical feedback to a broad-area laser
C Brée1, D Gailevičius2, V Purlys2, G G Werner3,4, K Staliunas3,5, A Rathsfeld1, G Schmidt1 and M Radziunas1 1 Weierstrass Institute, Mohrenstrasse 39, D-10117 Berlin, Germany, 2 Laser Research Center, Vilnius University, Sauletekio Ave. 10, 10222 Vilnius, Lithuania, 3 Departament de Fisica, Universitat Politècnica de Catalunya, E-08222 Terrassa, Spain, 4 Monocrom S.L., C/Vilanoveta, 6, E-08800...