The laser linewidth for 514.5nm, 501.7nm, 496.5nm, 488nm, 476.5nm has
been estimated by applying the classical formula. The linewidth corresponding to
various length of resonance cavity as well as for the various output power has been
estimated for each value of he wavelength. We have used the formula Δ =
and
Δ = ђ.(Δ)
where Δ is cavity resonance width Δ is line width for the laser
output and = 1- where and are the power reflection coefficient of the
cavity minors at the laser frequency.
