The synthesis of planar strip geometries for planar waveguides by a la
yered manufacturing technique, called fused deposition modelling (FDM(
TM)), is presented. Channels were deposited on silicon wafers by melti
ng a thermoplastic polymer and extruding it through a small orifice. S
ol-gel-derived, amorphous fluoride films were dip-coated into these ch
annels and yielded straight, 1mm strips on subsequent removal of the p
olymer.