Question

Task 2: Quality factor a) What is the quality factor $Q$ of a laser cavity with mirror separation $d = 1.2m$, mirror reflectivities $R_1 = R_2 = 0.98$ at a frequency $\nu = 5 \cdot 10^{14} s^{-1}$, if all other losses (apart from reflection losses) are 2% per roundtrip? b) After how much time does the energy stored in the cavity reduce to $1/e$, if at time $t = 0$ the amplification by the active medium suddenly drops to one?

          Task 2: Quality factor
a) What is the quality factor $Q$ of a laser cavity with mirror separation $d = 1.2m$, mirror reflectivities $R_1 = R_2 = 0.98$ at a frequency $\nu = 5 \cdot 10^{14} s^{-1}$, if all other losses (apart from reflection losses) are 2% per roundtrip?
b) After how much time does the energy stored in the cavity reduce to $1/e$, if at time $t = 0$ the amplification by the active medium suddenly drops to one?

Task 2: Quality factor
a) What is the quality factor Q of a laser cavity with mirror separation d = 1.2m, mirror reflectivities R1 = R2 = 0.98 at a frequency ν = 5 · 10^14 s^-1, if all other losses (apart from reflection losses) are 2% per roundtrip?
b) After how much time does the energy stored in the cavity reduce to 1/e, if at time t = 0 the amplification by the active medium suddenly drops to one?

Added by Kiara H.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Hunza Gilgit

05/14/2022

Step 1

Step 1: The quality factor Q of a laser cavity is defined as the ratio of the energy stored in the cavity to the energy lost per cycle. Show more…

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Task 2: Quality factor 4+1 P a) What is the quality factor Q of a laser cavity with mirror separation d = 1.2m, mirror reflectivities R1 = R2 = 0.98 at a frequency v = 5. 1014s-1, if all other losses (apart from reflection losses) are 2% per roundtrip? b) After how much time does the energy stored in the cavity reduce to 1/e, if at time t = 0 the amplification by the active medium suddenly drops to one?