A particular HeNe laser operating at 632.8 nm has a tube that is
40 cm long....
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Physics
A particular HeNe laser operating at 632.8 nm has a tube that is40 cm long. The operating gas temperature is about 130 ï‚°C.
Calculate the frequency separation and the wavelengthseparation of the laser modes. How do these change as thetube warms up during operation? Taking the linear expansioncoefficient to be 10-6 K-1, estimate the change in the modefrequency separation.
(please calculate the frequency separation and the wavelengthseparation)
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