31 g (20%) A three-mirror ring cavity has mirrors with R = R = 0.8 and...

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31 g (20%) A three-mirror ring cavity has mirrors with R = R = 0.8 and R = 0.9 which are separated at 12 = 0.5 m and 123 = 3 = 0.3 m. A glass rod that has a length of 1 = 0.2 m and a refractive index of n = 1.5 is placed along the beam path between the two mirrors of R and R g (a) Find the physical length, the round-trip time T, and the round-trip gain/loss factor Ge the cavity. of (b) Find the photon lifetime T., the cavity decay rate Y, and the quality factor Q at = 850 nm of the ring cavity. 31 g (20%) A three-mirror ring cavity has mirrors with R = R = 0.8 and R = 0.9 which are separated at 12 = 0.5 m and 123 = 3 = 0.3 m. A glass rod that has a length of 1 = 0.2 m and a refractive index of n = 1.5 is placed along the beam path between the two mirrors of R and R g (a) Find the physical length, the round-trip time T, and the round-trip gain/loss factor Ge the cavity. of (b) Find the photon lifetime T., the cavity decay rate Y, and the quality factor Q at = 850 nm of the ring cavity.