RARE-EARTH-DOPED LITHIUM NIOBATE WAVEGUIDE STRUCTURES

摘要

In a waveguide structure with diffused rare-earth doping in a light-guidechannel (LK) arranged in a lithium niobate crys-tal surface (5), the rare-earth doping is arranged in an effective rare-earthdoping region (SE) approximately coaxially with thelight-guide channel (LK); the light-guide channel (LK) is diffused directlyfrom the crystal surface (S) and its expansion (W) islaterally limited.