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Authors: W. Bogaerts, P. Dumon, D. Van Thourhout, R. Baets
Title: Low-Loss, Low-Crosstalk Crossings for SOI Nanophotonic Waveguides
Format: International Journal
Publication date: 10/2007
Journal/Conference/Book: Optics Letters
Volume(Issue): 32(19) p.2801-2803
DOI: 10.1364/OL.32.002801
Citations: 285 ( - last update: 14/7/2024)
190 (OpenCitations - last update: 3/5/2024)
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We present compact crossings for silicon-on-insulator photonic wires. The waveguides are broadened using a
3um parabolic taper in each arm. By locally applying a lower index contrast using a double etch technique,
loss of con¯nement is reduced and 97.5% transmission (-1.7dB) is achieved with only -40dB crosstalk.

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