Sv. Kukhlevsky et L. Kozma, SHORT-WAVELENGTH CAPILLARY LASERS WITH TUNABLE SPATIAL COHERENCE, IEEE journal of selected topics in quantum electronics, 1(3), 1995, pp. 941-944
We present a method to continuously tune the degree of spatial coheren
ce of a short-wavelength laser. The method is based on the optical pro
perties of the hollow-waveguide Fabry-Perot resonators with external m
irrors. The potential of the technique is demonstrated experimentally
on a capillary nitrogen laser (lambda = 337.1 nm). The results of the
work can be used for the construction of short-wavelenth lasers with t
unable spatial coherence.