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Authors: S. Darmawan, Y.M. Landobasa, P. Dumon, R. Baets, M.K. Chin
Title: Nested-Ring Mach-Zehnder Interferometer in Silicon-on-Insulator
Format: International Journal
Publication date: 1/2008
Journal/Conference/Book: IEEE Photonics Technology Letters
Volume(Issue): 20(1) p.9-11
Internal Reference: [N-691]
Download: Download this Publication (442KB) (442KB)

Abstract

For the first time, a nested-ring Mach–Zehnder interferometer (MZI) on silicon-on-insulator is realized using a complementary metal–oxide–semiconductor-based process. In this letter, we verify that the device operates in two modes: the inner-loop resonance dominant mode due to strong build-up inside the innerring, and the double-Fano resonances mode due to strong light interaction with the outer loop. The results show that the inner-loop resonance is highly sensitive to the MZI arm imbalance compared to the double-Fano resonance mode. Based on these considerations, we obtain a good fit between theory and experiment.

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