High Tcsuperconductor films were prepared by laser deposition using a SIEMENS XP 2020 excimer laser. Epitaxial YBaCuO films of high quality are obtained for a uniform laser beam energy density of about 4 J/cm2, a substrate temperature above 730 °C and an oxygen pressure of about 0.4 mbar. These films show high DC critical current densities as 5×106A/cm2at 77 K or 6×107A/cm2at 4.2 K and zero field and excellent microwave properties. The performance of first passive microwave devices made from these films is promising. Also epitaxial Bi2Sr2CaCu2Oxfilms were prepared on SrTiO3substrates. The inductively measured Tc, onsetreached 83 K. Critical current densities up to 107A/cm2at 4.2 K and 106A/cm2at 50 K were obtained. In magnetic field, these films show a dramatic dependence on the field direction, with jcbeing almost field‐independent (up to 7 T) at low temperatures, when the field lies within the film plane.