A UNIQUE METHOD FOR REDUCING LOSSES OF BENDS IN DIELECTRIC OPTICAL-WAVE GUIDE

The dielectric optical wave guide is finding growing attention at mill imeter wave frequencies. However the dielectric optical waveguide radi ates at bends and thus transmission loss increases. These radiations a re in the outword direction of bends. This output radiation at output bends arises due to change in phase velocities of the propagating wave at the centre of the dielectric guide and the phase velocity at the o uter surface of the dielectric guide. A unique method is suggested to avoid these radiation losses.Experimental results are also shown at mi crowave frequencies.