| Authors: | S. Pathak, P. Dumon, D. Van Thourhout, W. Bogaerts | | Title: | Comparison of AWGs and Echelle Gratings for Wavelength Division Multiplexing on Silicon-On-Insulator | | Format: | International Journal | | Publication date: | 10/2014 | | Journal/Conference/Book: | IEEE Photonics Journal
| | Editor/Publisher: | IEEE, | | Volume(Issue): | 6(5) p.4900109 | | DOI: | 10.1109/JPHOT.2014.2361658 | | Citations: | 117 (Dimensions.ai - last update: 17/11/2024)
99 (OpenCitations - last update: 27/6/2024)
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Abstract
We compare the performance of silicon based arrayed waveguide gratings (AWGs) and echelle gratings for different channel spacings. For high resolution de/multiplexer applications AWGs are the better choice, while echelle gratings perform well for low resolution de/multiplexer applications. Alternatively, for low resolution de/multiplexer applications the conventional box-shaped AWG can be modified by an S-shaped AWG. We report crosstalk as low as -27 dB for regular AWGs, while in the S-shaped AWGs the crosstalk is better than -19 dB, with an insertion loss below -2 dB. Related Research Topics
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