Problem 3. A Fabry-Perot laser cavity is made of two identical mirrors. Each miror has an opticalpower reflectance R=0.999. The distance between the two mirrors is d=10 cm. The laser cavity is filled agas material as the gain medium with an index of refraction n=1.05.(a) What is the photon life time of this laser cavity?(b) In order to make a laser using this cavity, you need to pump the gain medium to have a gain forcompensating the losses at two mirrors. What is the threshold gain coefficient for this laser?

Given: Optical power reflectance of each mirror R=0.999 The distance between two mirror d=10 cm=0.1…

Answered: Problem 3. A Fabry-Perot laser cavity…

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