ps laser probe for laser plasma diagnosis

The ps laser probe is a 308nm diagnostic light source for laser plasma diagnosis. It coverts a pulse of lns 1 054nm into a pulse of 263nm by double times frequency conversion, then it compresses 1ns to 30ps(FWHM) and the wavelength is shifted to 308nm by stimulated Raman scattering, at last the output laser is a pulse of output energy over 1mJ and 30ps.The experimental result is that the ps laser probe is output pulse of over 1mJ energy and 30ps(FWHM), and it runs over 90% stable rate, it accords with anticipated aim.