Ss. Lee et Sy. Shin, Polymeric digital optical switch incorporating linear branch with modifiedcoupling region, ELECTR LETT, 35(15), 1999, pp. 1245-1246
A digital optical switch in electro-optic polymer has been proposed and fab
ricated by incorporating a linear branch with a modified coupling region. T
he refractive index profiles in the coupling region of the branch have been
adjusted adiabatically to enhance the switching performance by utilising p
ost-fabrication photobleaching. Consequently, the drive voltage was reduced
by more than 40% and the crosstalk improved by as much as 6dB.