A laser for medical includes an optically pumped laser medium, and the output of the laser is directed through an optical fiber delivery system to a tissue target. The flashlamp is driven by a pulsed power signal that is selectively variable to produce laser pulses of predetermined temporal width and...http://www.google.co.uk/patents/US5269778?utm_source=gb-gplus-sharePatent US5269778 - Variable pulse width laser and method of use
