| Authors: | S. Dwivedi, H. D'heer, W. Bogaerts | | Title: | A compact all-silicon temperature insensitive filter for WDM and bio-sensing applications | | Format: | International Journal | | Publication date: | 11/2013 | | Journal/Conference/Book: | IEEE Photonics Technology Letters
| | Editor/Publisher: | IEEE, | | Volume(Issue): | 25(22) p.2167 - 2170 | | DOI: | 10.1109/LPT.2013.2282715 | | Citations: | 55 (Dimensions.ai - last update: 24/11/2024)
51 (OpenCitations - last update: 27/6/2024)
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Abstract
We propose a compact, temperature-insensitive, all-silicon Mach-Zehnder interferometer (MZI) filter that uses the polarization-rotating asymmetrical directional couplers. Temperature sensitivity of the filter is less than 8pm/K for a wavelength range of 30 nm. The device achieves a reduced footprint by making use of different polarizations, which is made possible by the asymmetric directional couplers that act both as a splitter/combiner and as a polarization rotator. Simulation of the device shows that it can also be useful for gas sensing and bio-sensing applications with 3 times larger response to cladding changes while keeping a thermally robust behavior. Related Research Topics
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