1. Single mode fibre optic directional couplers;Bergh;Electron. Lett.,1980
2. Optical edge filters made of single mode fibre;Zergele;J. Opt. Comms.,1985
3. Electrooptic monomode fibre devices with liquid crystal overlays;Nayar,1986
4. Single mode fibre optic polarizer;Bergh;Opt. Lett.,1980
5. In line fibre optic polariser;Eichkoff;Electron. Lett.,1980