Title :
Novel integrated optical polarisers using surface plasma waves and ion milled grooves in lithium niobate
Author :
Bristow, J.P.G. ; Nutt, A.C.G. ; Laybourn, P.J.R.
Author_Institution :
University of Glasgow, Department of Electronics & Electrical Engineering, Glasgow, UK
Abstract :
Two distinctly different integrated optical polarisers have been made with multilayer claddings and titanium indiffused lithium niobate waveguides, transmitting both TE and TM polarisations. The TE device used claddings on the crystal surface obtaining (20.9±0.3) dB/cm extinction ratio. The TM polariser used similar claddings on a vertical wall fabricated by ion-beam milling adjacent to the waveguide, obtaining (17±3) dB extinction ratio.
Keywords :
integrated optics; ion beam applications; lithium compounds; optical polarisers; optical waveguides; surface plasmons; titanium; LiNbO3:Ti waveguides; TE polariser; TM polariser; extinction ratio; integrated optical polarisers; ion milled grooves; multilayer claddings; surface plasma waves;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19840715
