Effects of surface roughness on the performance of an etched diffraction grating demultiplexer
2006 (English)In: Journal of the Optical Society of America A: Optics and Image Science, and Vision, ISSN 1084-7529, Vol. 23, no 3, 646-650 p.Article in journal (Refereed) Published
The fabrication tolerance of surface roughness on the performance [such as the insertion loss, the polarization-dependent loss (PDL), and the chromatic dispersion] of an etched diffraction grating demultiplexer is analyzed by using an accurate method of moments. The results show that both the insertion loss and the chromatic dispersion rapidly increase as the roughness of the grating facets increases. Appropriate residual roughness of the shaded facets can reduce the PDL of the demultiplexer, and the mechanism for the existence of an optimal residual roughness is explained.
Place, publisher, year, edition, pages
2006. Vol. 23, no 3, 646-650 p.
Demultiplexing, Diffraction, Insertion losses, Light polarization, Optical communication, Optical waveguides, Surface roughness, Wavelength division multiplexing, Chromatic dispersion, Diffraction grating demultiplexer, Polarization dependent loss (PDL)
IdentifiersURN: urn:nbn:se:kth:diva-8608DOI: 10.1364/JOSAA.23.000646ISI: 000235747900017ScopusID: 2-s2.0-33645416558OAI: oai:DiVA.org:kth-8608DiVA: diva2:13976
QC 201009102008-06-022008-06-022013-11-19Bibliographically approved