Low-loss three-dimensional printed ridge waveguides using stereolithography

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 promise more complex devices systems.