Sidelobe suppression design of etched diffraction grating demultiplexers using optimized air trenches in front of each output waveguide
2006 (English)In: Journal of the Optical Society of America A: Optics and Image Science, and Vision, ISSN 1084-7529, Vol. 23, no 10, 2645-2649 p.Article in journal (Refereed) Published
An etched diffraction grating (EDG) demultiplexer with high sidelobe suppression is designed. Sidelobes resulting from two adjacent wavelengths are suppressed by etching two optimized rectangular air trenches in front of each output waveguide that can induce large resonance loss in the adjacent wavelength but have little influence on the operational wavelength. The designed EDG demultiplexer can suppress crosstalk to less than 50 dB in theory.
Place, publisher, year, edition, pages
2006. Vol. 23, no 10, 2645-2649 p.
Crosstalk, Demultiplexing, Interference suppression, Optical communication equipment, Adjacent wavelength, Etched diffraction grating demultiplexers, Output waveguide, Sidelobe suppression
IdentifiersURN: urn:nbn:se:kth:diva-8609DOI: 10.1364/JOSAA.23.002645ISI: 000240858500028ScopusID: 2-s2.0-33751238787OAI: oai:DiVA.org:kth-8609DiVA: diva2:13977
QC 201009102008-06-022008-06-022013-11-19Bibliographically approved