Gbit/s transmission via two-photon-absorption-inscribed optical waveguides on printed circuit boards

Optical waveguides were inscribed into a 300 m-thick polymer layer applied onto standard printed circuit boards via two-photon-absorption. VCSELs and photodiodes embedded in this layer of ORMOCER reg complemented optical interconnects for multi-Gbit/s data transmission at a wavelength of 850 nm.