Title :
Modification of planar waveguide facet reflectivity with subwavelength gratings
Author :
Schmid, J.H. ; Cheben, P. ; Janz, S. ; Lapointe, J. ; Post, E. ; Delage, A. ; Densmore, A. ; Lamontagne, B. ; Waldron, P. ; Xu, D-X
Author_Institution :
Nat. Res. Council of Canada, Ottawa
Abstract :
The functionality and performance of many planar waveguide devices, including lasers and optical amplifiers, are critically affected by the reflectivity of the waveguide facets. For high index contrast waveguide devices, the Fresnel reflection at the facet is a significant contribution to the fibre-to-chip coupling loss and the return loss. Currently, the common method to control the facet reflectivity of planar waveguides is the deposition of anti-or high-reflective coatings.
Keywords :
Fresnel diffraction; diffraction gratings; optical losses; optical planar waveguides; reflectivity; Fresnel reflection; fibre-to-chip coupling loss; lasers amplifiers; optical amplifiers; planar waveguide facet reflectivity modification; planar waveguides; return loss; subwavelength gratings; Fiber lasers; Gratings; Optical devices; Optical fiber losses; Optical planar waveguides; Optical waveguides; Planar waveguides; Reflectivity; Stimulated emission; Waveguide lasers;
Conference_Titel :
Lasers and Electro-Optics, 2007 and the International Quantum Electronics Conference. CLEOE-IQEC 2007. European Conference on
Conference_Location :
Munich
Print_ISBN :
978-1-4244-0931-0
Electronic_ISBN :
978-1-4244-0931-0
DOI :
10.1109/CLEOE-IQEC.2007.4386622
