A low-loss 3D printed rib waveguide using stereolithography

Dominic Gusman; Helio Ramollari; Philip Measor

doi:10.1117/12.2648531

17 March 2023 A low-loss 3D printed rib waveguide using stereolithography

Dominic Gusman, Helio Ramollari, Philip Measor

Proceedings Volume 12424, Integrated Optics: Devices, Materials, and Technologies XXVII; 1242410 (2023) https://doi.org/10.1117/12.2648531
Event: SPIE OPTO, 2023, San Francisco, California, United States

Conference Poster

Abstract

3D printed rib waveguides were demonstrated with dimensions from 11 to 30 μm wide, 5 to 31 μm tall and had ribs between <500 nm and 11 μm tall. The structures were made using a custom stereolithography 3D printer and a formulated hydrogel resin with UV light exposures of one second. The waveguides were characterized using the cutback method and showed losses of 1.0 to 1.6 cm^-1 and coupling coefficients of <0.9. This demonstrates a very quick and inexpensive method to fabricate planar rib waveguides without the need for a cleanroom and promising for more complex integrated devices.

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Dominic Gusman, Helio Ramollari, and Philip Measor "A low-loss 3D printed rib waveguide using stereolithography", Proc. SPIE 12424, Integrated Optics: Devices, Materials, and Technologies XXVII, 1242410 (17 March 2023); https://doi.org/10.1117/12.2648531

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