New method for 3D printing of micro-optics on photonic chip facets

We describe a new approach to 3D printing of micro-optical elements on the facets of photonic chips in Optics Express. 

This work, led by Edgar Perez, shows how we can use machine vision techniques to automatically locate input/output ports on photonic chip facets and directly print micro-lenses on them to aid in fiber optic coupling to and from the chip.

Perez, E., G. Moille, X. Lu, D. Westly, and K. Srinivasan, "Automated on-axis direct laser writing of coupling elements for photonic chips", Opt. Express, vol. 28, issue 26, pp. 39340–39353, Dec, 2020.