Yellow laser at 593nm

reduce costs. a Reduce or eliminate costs associated with shield procurement and installation. The lead pipe shielding of most superheaters has been removed. b By extending the life of boiler components, the need and cost of unplanned shutdowns are reduced. c The boiler life of most facilities has more than doubled. Before coating development, the typical onel coating superheater life was 16 to 24 months. At the time of writing, some superheater components have been in use for more than five years. This technique reversibly extends ultrashort pulses from the oscillator by their wide spectral width. Thanks to the diffraction grating, each spectral component of the pulse (each "color") is separated and traverses a path of different length, and then recombined into the same beam using a second grating. .. In this way, a pulse stretched by 1000 times is obtained, which can pass through the amplifier without damaging the amplifier, so as to achieve the required energy of several joules or more per pulse.