Electronics Letters · 1983 · 29 citations · 0 references
EngineeringElectrical EngineeringPhysicsOptical MaterialsOpticsPhotonicsIntegrated OpticsIntegrated PhotonicsOptical WaveguidesPhotonic Integrated CircuitsPolarization OpticsWaveguidesExtinctionExtinction RatioFabricationIntegrated Optical WaveguidesIntegrated WaveguidesWaveguide Electro-opticsWaveguide FabricationWaveguide Loss
A polariser on a Ti:LiNbO3 channel waveguide has been realised using a double fabrication process (Ti indiffusion and proton exchange). A region is created where the extraordinary polarisation experiences a leaky propagation leading to an extinction ratio of 30 dB and excess loss of about 1 dB.