Simulation of backward light waves generated in isotropic optical waveguides

The existing coherent light sources are nonuniformly distributed by frequency in the optical range. Thus, work toward the development of tunable lasers operating in the middle IR range has long been underway. Nevertheless, the region 4–8 μm has been poorly mastered, and more longwave lasers have too narrow frequency tuning ranges. One way of solving these problems is to harness the effect of parametric light generation whose special case is parametric generation of backward light waves in nonlinear optical media, which is the subject of the present work. __________ Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 5, pp. 59–62, May, 2007.