Laser Photon Densities

M. Grado-Caffaro, M. Grado-Caffaro

Victor ARTEMYEV

Jing Xia

The instantaneous effect of and dynamics of Er-doped fiber laser is studied.The transient effect mechanism of Er-doped fiber laser under the pumping disturbance is a kind of forced vibration behavior.The paper gives the photon population density perturbations with time in Er-doped fiber laser and the fluctuation functions of photon population density are solved at the first order approximation When pumping perturbations have white noise characteristics,the dynamical characteristic of the laser is increased with pumping perturbations;the resonance absorption extent is widened,but it makes the stability of the laser reduced at the same time.This paper elaborates that the value of photon population density will increase along with the increase of the ion density and the photon life in the resonance phenomenon,and the unstability of the laser will be strong,but the opposite value will be diminished.

Robertsen A. Riehle, Henk F. Arnoldus

Fluorescent photons emitted by a two-state atom in a laser beam are correlated. We have obtained the probability density for the emission of the th photon after a random initial time . It is shown that the correlations between the photons lead to a deviation from the poissonian value for this function (the probability density for independent events), although the deviation is not as significant as one may expect.

C. W. J. Beenakker

Chour-Yih Huang