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Gegenseitige Beeinflussung zweier verschiedener Laserübergänge mit dem gleichen Grundniveau I. Theorie
Author(s) -
Brunner W.,
Paul H.,
Richter G.
Publication year - 1969
Publication title -
annalen der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.009
H-Index - 68
eISSN - 1521-3889
pISSN - 0003-3804
DOI - 10.1002/andp.19694770303
Subject(s) - semiclassical physics , physics , laser , lasing threshold , perturbation theory (quantum mechanics) , atomic physics , perturbation (astronomy) , quantum electrodynamics , quantum mechanics , quantum
The mutual influence of two laser modes corresponding to two different transitions with the same lower level is investigated by expressing the losses of each resonator as a function of the photon numbers of both laser modes. The calculations are performed in two different ways:a by using rate equations based upon the concept of constant transition probabilities independent of subsequent transitions. b in the frame of semiclassical theory of laser action.The difference between the results a) and b) displays the effect of reduced transition rates due to a perturbation of the lower level, already discussed in preceding papers [1, 2]. Numerical values are given for the case of a HeNe dc laser with the transitions 3 s 2 → 2 p 4 and 2 s 2 → 2 p 4 lasing simultaneously.