Novel polymer-based resonant grating-waveguide structures

New configurations for polymer-based multilayered gratin g-waveguide struct ures whereby the waveguide layer is spun-coated over a Si substrate and the grating layer is obtained by holographic recording, are presented. Such st ructures are demonstrated in a hybrid semiconductor-organic material config uration. Experimental results reveal a spectral bandwidths down to 1 nm at FWHM with an incident intensity reflectivity reaching 72%. Narrow bandwidth , high reflectivity along with considerably simpler fabrication entailing t he possibility of cost reduction as compared to costs compared to currently used pure semiconductor technologies, make these original grating-waveguid e structures relevant candidates towards WDM optical communication networks . (C) 2001 Elsevier Science B.V. All rights reserved.