Physics, 13.07.2019 01:20 simihehe

Consider a cw laser consisting of two mirrors (r, - 100%, r2-99%, the distance between mirrors l) and a laser element pumped by a diode laser or a flash-lamp. how the pumping power threshold will change if (i) r, is reduced from 99% to 95%, (ii) the emission cross section is increased from to 2 (ii) the life-time of the metastable level is increased from to 20% (assume four-level laser scheme.)

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Consider a cw laser consisting of two mirrors (r, - 100%, r2-99%, the distance between mirrors l) an...

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