| Authors: | W. Bogaerts, S. Pathak, A. Ruocco, S. Dwivedi, P. De Heyn, P. Dumon, D. Van Thourhout, J. Van Campenhout, P. Absil | | Title: | Silicon photonics non-resonant wavelength filters: comparison between AWGs, echelle gratings and cascaded Mach-Zehnder filters. | | Format: | International Conference Proceedings | | Publication date: | 2/2015 | | Journal/Conference/Book: | Proc. SPIE 9365, Integrated Optics: Devices, Materials, and Technologies XIX
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| | Editor/Publisher: | SPIE, | | Volume(Issue): | p.93650H | | Location: | San Francisco, United States | | DOI: | 10.1117/12.2082785 | | Citations: | 14 (Dimensions.ai - last update: 24/11/2024)
4 (OpenCitations - last update: 27/6/2024)
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Abstract
We present a comparison of different silicon photonics-based wavelength filters targeted at different applications with different requirements (e.g. channel spacing, number of channels, insertion loss or crosstalk level). In this paper we compare only non-resonant filters, or finite-impulse response (FIR) filters, such as Arrayed Waveguide Gratings, Echelle Gratings and higher-order cascades of Mach-Zehnder filters. We derive the strengths and weaknesses from their operational principles and confirm those with experimental data from fabricated devices. We will then discuss the applicability of the different filter devices for applications in WDM communication, sensing and spectroscopy. Related Research Topics
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