Fiber waveguides with stable polarization of radiation

Abstract

AbstracL The Iarge.de dynamics of a reaction front in a turbulent Bow in the limit of large Reynolds number has been sNdied starring from the K o l m o g o r o v -P e u o v s l s~~o " equation, modified by the random convection term. Random velocity has been assumed to be

Terahertz electromagnetic wave generation and amplification by an electron beam in the elliptical plasma waveguides with dielectric rod

“…(19)- (22) and applying boundary conditions mentioned in Eqs. (17) and (18), one can obtain the dispersion equation as following form:…”

“…Also to create wideband system of coherent optical communication and many other optical-fiber device, it is necessary to have waveguides conserving the polarization of radiation passing through them. One type of such waveguides are single-mode elliptic waveguide which can ensure the single-polarization mode 15 and have quite high dispersion characteristics. 16,17 Krivenkov has solved the problem of a gradient elliptic waveguide with an arbitrary refractive-index profile.…”

“…One type of such waveguides are single-mode elliptic waveguide which can ensure the single-polarization mode 15 and have quite high dispersion characteristics. 16,17 Krivenkov has solved the problem of a gradient elliptic waveguide with an arbitrary refractive-index profile. 18 It has been shown the even dominate mode in elliptical dielectric rod and tube waveguides have lower attenuation than the corresponding mode in circular waveguides.…”