Ridge waveguides were three-dimensional printed using a stereolithography printer and hydrogel resin formulation. The ridge 13, 20, 30 μm wide, 3 to 6 high, 4.4 mm long. loss of the was measured cutback method ranged between 0.28 1.2 cm − 1 (or 5.2 dB / cm) with transmittances up 0.94 (0.27 coupling loss) 635 nm light. Our work demonstrates quick inexpensive fabricate integrated photonic chips ...

Abstract. This paper discusses the application of methods non-destructive testing and flaw detection plastic products manufactured by additive technologies. The modern development technologies associated with active transition from manufacture prototypes test samples to functional increases requirements for improving quality manufacturing conducting diagnostics finished products, including mate...

Photonic crystals with periodic arrangement of dielectric media can exhibit forbidden gaps in electromagnetic wave bands through Bragg diffraction (Ohtaka; 1979, Yablonovitch; 1987, John; 1987, Temelkuran; 2000). The prohibited frequency ranges are especially called photonic band gaps. If the periodicity is changed locally by introducing a defect, localized modes appear in the band gap (Ho; 199...