Compact DFB dye laser with stable wavelength is developed. The laser i
ncludes an active element and a glass prism, two sides of which are co
vered with reflecting coatings. Interfering pumping beams are formed i
nside the laser in such a manner that any dependence of the laser wave
length on the angle of pumping beam incidence on an entering side of p
rism is practically excluded. At the same time temperature sensitivity
of the laser frequency in the proposed DFB laser is reduced by the or
der.