Paper
3 March 2020 Compact passive photonic filter using an MZI
Author Affiliations +
Proceedings Volume 11276, Optical Components and Materials XVII; 112761I (2020) https://doi.org/10.1117/12.2544693
Event: SPIE OPTO, 2020, San Francisco, California, United States
Abstract
This analytical modeling-and-simulation paper presents a compact passive photonic filter using Mach-Zehnder Interferometer (MZI) on silicon-on-insulator (SOI) platform. MZI based wavelength filters have been demonstrated for broadband wavelength-division-multiplexing (WDM). The imbalance in MZI provides means to control the free spectral range (FSR) hence enabling designing of a photonic filter that can pass the required band and block the rest of the signal. Low loss Y-splitter/combiner are used with very small footprint to make compact size MZI. A 3D Finite-Difference Time-Domain (FDTD) simulation is performed on our design. FSR value of 50 nm was observed in the span of 100 nm wavelength range centered on 1.55 μm. The footprint of the designed filter is 15 μm x 20 μm.
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M. F. Qadir, F. Malik, A. Hussain, M. Zakwan, and W. Tahir "Compact passive photonic filter using an MZI", Proc. SPIE 11276, Optical Components and Materials XVII, 112761I (3 March 2020); https://doi.org/10.1117/12.2544693
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KEYWORDS
Waveguides

Filtering (signal processing)

Optical filters

Wavelength division multiplexing

Finite-difference time-domain method

Silicon

Optical communications

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