hi aabid baba,
i think umar is reffering to the laser action fluctuation (population inversion fluctuations)in the laser.
espaccially that of the distributed feedback laser , fabri parot laser ,… in these lasers the resonance action (interference of photons of same nature are constructively intereferet)also takes place..
in that case i think he valid on his point.
i hope he will back his point soon
with regards