A He-Ne c-w laser has a Doppler-broadened transition bandwidth of about 1.4 GHz at 632.8 nm. Assuming
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A He-Ne c-w laser has a Doppler-broadened transition bandwidth of about 1.4 GHz at 632.8 nm. Assuming n = 1.0, determine the maximum cavity length for single-axial mode operation. Make a sketch of the transition line width and the corresponding cavity modes.
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