Question: Exercise 1 : ( 7 points ) A Nd:YAG rodD = 6 . 3 5 m m in diameter, l = 7 . 5 c

Exercise 1: (7 points)
A Nd:YAG rodD=6.35mm in diameter, l=7.5cm long, is used in Q-switched laser working at wavelength =1.06m. What is the inversion of population reached in closed shutter phase after tp=100s of pumping time with constant pump power of 10 kW . We assume a total pump efficiency p=5.50%, and a spontaneous life time of =230s.
Exercise 1 : ( 7 points ) A Nd:YAG rodD = 6 . 3 5

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