Development of hybrid femtosecond laser system on the basis of Ti:sapphire starting complex "Start-480М" and photochemical XeF(C-A) amplifier with an aperture of 12 × 12 cm is presented. The start complex provides a 50 fs radiation pulse with a 5 mJ energy on the second harmonic (475 nm). The active medium is created in XeF2/N2 mix under the influence of VUV radiation of xenon excited by an electronic beam. A 250 mJ output energy was obtained, when a 50 fs pulse with 4 mJ energy was amplified in the XeF(C-A) amplifier.
XeF(C-A) amplifier, Ti:Sa start complex, active medium, Xe converter, VUV radiation