Is the legal laser pointer limit us?

This technique extends them reversibly by using the wide spectral width of the ultrashort-short pulses from the oscillator. Thanks to diffraction gratings, each spectral component of the pulse (each "color") is separated and taken a path of different lengths, then reassembled into the same beam using a second grating. . The result is a 1000-fold broadening pulse that can pass through the amplifier without damaging it, achieving up to a few joules or more of the required energy per pulse. All lasers must include a warranty of at least 6 months per year so that you can purchase with confidence. If the model you are considering is not guaranteed to speak or is less than 6 months old, it is recommended to look elsewhere. After all, how can you trust the product if the company itself doesn't want to guarantee its use? The classical laser produces ultrashort laser pulses designed to maximize the coherence of the transmitted beam. In particular, it tries to obtain "single-mode" radiation by manipulating the shape of the laser cavity. That means we just want to allow radiation in very precise directions and lengths and very precise waves.