Aldo Guti - Academia.edu (original) (raw)
Uploads
Papers by Aldo Guti
Germanium-on-silicon is a highly promising platform for planar photonics for the mid-infrared, du... more Germanium-on-silicon is a highly promising platform for planar photonics for the mid-infrared, due to germanium's wide transparency range. In this paper we report Ge-on-Si waveguides with record low losses of only 0.6dB/cm, which is achieved by using a 2.9 µm thick germanium layer, thus minimizing mode interaction with dislocations at the germanium/silicon interface. Using these waveguides multimode interferometers with insertion losses of only 0.21 ± 0.02 dB are also demonstrated.
Germanium-on-silicon is a highly promising platform for planar photonics for the mid-infrared, du... more Germanium-on-silicon is a highly promising platform for planar photonics for the mid-infrared, due to germanium's wide transparency range. In this paper we report Ge-on-Si waveguides with record low losses of only 0.6dB/cm, which is achieved by using a 2.9 µm thick germanium layer, thus minimizing mode interaction with dislocations at the germanium/silicon interface. Using these waveguides multimode interferometers with insertion losses of only 0.21 ± 0.02 dB are also demonstrated.