Title :
Superstrate index control of waveguide grating reflectivity
Author :
Pissadakis, S. ; Sager, D.A. ; Zervas, M.N. ; Wilkinson, J.S.
Author_Institution :
Optoelectron. Res. Centre, Southampton Univ., UK
Abstract :
Waveguide gratings reflecting at wavelengths near 1530 nm were fabricated by laser ablation of thin Ta/sub 2/O/sub 5/ films on glass waveguides. Variation of reflectivity from 0.3 dB to 34 dB was achieved by alteration of the superstrate refractive index.
Keywords :
diffraction gratings; ion exchange; laser ablation; optical fabrication; optical planar waveguides; reflectivity; refractive index; tantalum compounds; 1530 nm; Ta/sub 2/O/sub 5/; beam propagation method; channel waveguides; cladding layers; diffraction efficiency; high-index films; integrated optical waveguides; ion exchange; ion-exchanged waveguide; laser ablation; monomode waveguides; superstrate index control; superstrate refractive index; thin films on glass waveguides; waveguide grating reflectivity; Glass; Gratings; Laser ablation; Optical fiber polarization; Optical films; Optical surface waves; Optical waveguides; Reflectivity; Surface waves; Waveguide lasers;
Conference_Titel :
Lasers and Electro-Optics, 2001. CLEO/Pacific Rim 2001. The 4th Pacific Rim Conference on
Conference_Location :
Chiba, Japan
Print_ISBN :
0-7803-6738-3
DOI :
10.1109/CLEOPR.2001.967746
