N. V. Kravtsov, E. G. Lariontsev, A. S. Chirkin, “Ultimate spatial coherence of the radiation emitted by single-mode chip lasers”, Kvantovaya Elektronika, 1995, Volume 22, Number 5,Pages <nobr>453

Lasers and amplifiers

Ultimate spatial coherence of the radiation emitted by single-mode chip lasers

N. V. Kravtsov^a, E. G. Lariontsev^a, A. S. Chirkin^b

^a Institute of Nuclear Physics, Lomonosov Moscow State University
^b M. V. Lomonosov Moscow State University, Faculty of Physics

Abstract: An analysis is made of the factors influencing the degree of the spatial coherence $\gamma$ of miniature chip lasers with longitudinal semiconductor-diode pumping. Estimates are obtained of the ultimate spatial coherence of the radiation emitted by such lasers. It is shown that the value of $\vert1-\gamma\vert$ can reach $10^{-7}$ in the limit set by the beam width.

PACS: 42.55.Rz, 42.60.Jf

Received: 03.10.1994