Fig. 4. Continuous wave and pulsed laser waveform illustrated. (A) CW and chopped CW beam. (B) 1 ms pulsed laser. (C) Single shot Q-switched laser beam. (D) Train of high-frequency Q-switched beams separated by a very long interpulse interval to give a beam ‘seen’ by the tissue as CW, hence ‘quasi-CW’. (E) Not euro. €: The significant difference in peak power between a 5 ns Q-switched beam and a 450 ps beam.

Med Lasers 2017;6:45~57 https://doi.org/10.25289/ML.2017.6.2.45

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