Brusberg, L.L.BrusbergZakharian, A.R.A.R.ZakharianNeitz, M.M.NeitzLi, S.S.LiHathaway, B.A.B.A.HathawayKuchinsky, S.A.S.A.KuchinskyBeneke, P.P.BenekeSchröder, H.H.Schröder2022-03-062022-03-062020https://publica.fraunhofer.de/handle/publica/26349310.1109/JLT.2019.2956915Ion-exchange glass waveguides are a very promising technology with a balanced trade-off between optical loss, integration density, and fabrication costs. Graded-index multimode waveguides show low propagation loss of only 0.035 dB/cm at wavelength of 1310 nm in glass, compatible with large scale manufacturing. For fiber cable connectivity, expanded beam connectors were used to terminate the waveguides by passive pick-and-place assembly, resulting in a coupling loss of ~1 dB per interface. Design and fabrication of glass waveguides are studied, and 2-m-long spiral waveguides along with 12 × 12 optical shuffle waveguide layouts made on a 9'' × 12'' area glass sheet are demonstrated experimentally.en621journal article