A Compact All-Silicon Temperature Insensitive Filter for WDM and Bio-Sensing Applications

被引：55

作者：

Dwivedi, Sarvagya ^{[1
]}

D'heer, Herbert ^{[1
]}

Bogaerts, Wim ^{[1
]}

机构：

[1] Univ Ghent, Photon Res Grp, Dept Informat Technol, Ctr Nano & Biophoton, B-9000 Ghent, Belgium

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2013年 / 25卷 / 22期

关键词：

Silicon photonics; wavelength filtering devices; athermal; polarization selective devices; bio-sensing;

D O I：

10.1109/LPT.2013.2282715

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We propose a compact, temperature-insensitive, and all-silicon Mach-Zehnder interferometer filter that uses the polarization-rotating asymmetrical directional couplers. Temperature sensitivity of the filter is <8 pm/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 three times larger response to cladding changes while keeping a thermally robust behavior.

引用

收藏

页码：2167 / 2170

页数：4

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