Design, Fabrication and Preliminary Characterisation of Ti:LiNbO_3 Directional Coupler Switch

摘要

Titanium-indiffused lithium niobatc directional coupler switch with Ap-reversed electrode structure is designed, fabricated and characterised. The fabricated 2 x 2 directional coupler has crosstalk of 4.8 dB at 1.31 μm transmitting wavelength.