Design scheme for Mach – Zehnder interferometric coarse wavelength division multiplexing splitters and combiners

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Abstract

I propose an analytical approach to design flattened wavelength splitters with cascaded Mach–Zehnder inter- ferometers when wavelength dependence of the directional couplers cannot be neglected. I start from a geo- metrical representation of the action of a doubly point-symmetrical filter, assuming no wavelength dependence of the couplers. Next I derive the analytical formulas behind its working principle and extend them to the wavelength-dependent case. I also show how the geometrical representation allows one to broaden the class of working structures. © 2006 Optical Society of America
Original languageEnglish
Pages (from-to)1752-1756
Number of pages5
JournalJournal of the Optical Society of America B: Optical Physics
Volume23
Issue number9
DOIs
Publication statusPublished - 2006
MoE publication typeA1 Journal article-refereed

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