- A Nd Yag Laser Consists Of A 7 5 Cm Long Nd Yag Rod The Gain Medium Situated Between Two Mirrors With R 1 And R 1 (34.96 KiB) Viewed 31 times
A Nd:YAG laser consists of a 7.5 cm long Nd:YAG rod (the gain medium), situated between two mirrors with R₁ = 1 and R₂ =
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A Nd:YAG laser consists of a 7.5 cm long Nd:YAG rod (the gain medium), situated between two mirrors with R₁ = 1 and R₂ =
A Nd:YAG laser consists of a 7.5 cm long Nd:YAG rod (the gain medium), situated between two mirrors with R₁ = 1 and R₂ = 0.85. The laser is optically pumped from the side with pump wavelength of 500 nm. The lasing transition in the Nd ion has the following characteristics: wavelength of 1064 nm, upper-level lifetime of 230 us, and stimulated emission cross section G = 2.8 x 10-19 cm². The beam area in the laser rod is 0.23 cm², and the attenuation coefficient of the gain rod is 5 x 10³ cm ¹¹. (a) Find the threshold pump power for the laser. (b) Find the slope efficiency. (c) Find the value of T that would maximize the output power if the pump power is twice the threshold value.