title: Glass interposer for short reach optical connectivity.
abstract: We propose a glass interposer containing femtosecond laser-scribed waveguides to interconnect silicon photonic chips. The glass interposer has an insertion loss of about 1.5 dB/cm, and simplifies alignment of silicon photonic chips. Our experiment shows that the insertion loss for the grating coupler/inscribed glass interface was only 0.5 dB higher than the estimated coupling loss of grating coupler to SMF. The 3 dB coupling degradation occurs after 5 µm of in-plane displacement between the laser-inscribed waveguide and the grating coupler.
authors.forename: Mehrdad
authors.initials: M
authors.lastname: Mirshafiei
authors.forename: Jean-Philippe
authors.initials: JP
authors.lastname: Bérubé
authors.forename: Stephane
authors.initials: S
authors.lastname: Lessard
authors.forename: Réal
authors.initials: R
authors.lastname: Vallée
authors.forename: David V
authors.initials: DV
authors.lastname: Plant