Schwietering, J.J.SchwieteringHerbst, C.C.HerbstKirsch, O.O.KirschArndt-Staufenbiel, N.N.Arndt-StaufenbielWachholz, P.P.WachholzSchröder, H.H.SchröderSchneider-Ramelow, M.M.Schneider-Ramelow2022-03-142022-03-142020https://publica.fraunhofer.de/handle/publica/40946710.1109/ECTC32862.2020.000362-s2.0-85090270101Glass integrated single-mode waveguides were fabricated by ion-exchange in large panel-size low-cost display glass. Propagation losses of 0.059 dB/cm (at 1550 nm) were achieved and a high process homogeneity across a panel was shown by comparison of 25 waveguides. For the first time, 12 spiral-shaped single-mode waveguides with a length of more than 2 meter were integrated in glass. Furthermore, in-plane evanescent field coupling tests were conducted to achieve first optical functions on large sized glass. To achieve higher integration density and more flexible routing, this work presents a layout-based approach to reduce bend radii without increasing propagation losses. Also without changing process parameters, selectively buried waveguides were manufactured to enable localized areas for out-of-plane coupling from EOCB to flip-chip PIC. These results provide a basis for a novel coupling concept - gradient index surface coupling (GISC).en621conference paper