1 Fiber Optics, Devices and Non-linear Effects, Department of Photonics Engineering, Technical University of Denmark2 Department of Photonics Engineering, Technical University of Denmark3 Rector’s office, Administration, Technical University of Denmark
In this PhD thesis an experimental and numerical investigation of liquid crystal infiltrated photonic bandgap fibers (LCPBGs) is presented. A simulation scheme for modeling LCPBG devices including electrical tunability is presented. New experimental techniques, boundary coating and the applications of monomer added LCs, are investigated. Waveplates based on LCPBGs and a tunable polarization maintaining filter are developed. An on-chip tunable notch filter based on long period gratings is presented. Furthermore, the application of a LCPBG device for the electrical control of a fiber laser is demonstrated.
Main Research Area:
Eskildsen, Lars, Alkeskjold, Thomas Tanggaard, Lægsgaard, Jesper, Bjarklev, Anders Overgaard