1. We consider a HeNe laser operating at a wavelength 1-633 nm. The laser resonator is 0.8m long. The linewidth is broadened to Av=2 GHz due to the Doppler effect. The laser ispumped at a power equal to 4 times the threshold pump power. a) How many modes canoscillate simultaneously? b) We assume that all the modes are locked together and haveequal amplitude. What is the repetition rate of the laser (inverse of time betweenconsecutive pulses) and what is the pulse duration?

1. Given that- The laser resonator is 0.8m long. The linewidth is broadened to 2Ghz due to doppler…

Answered: 1. We consider a HeNe laser operating…

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