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Multi-layer silicon nitride-on-silicon polarization-independent grating couplers

Mak, Jason C. C. and Sacher, Wesley D. and Ying, Huang and Luo, Xianshu and Lo, Patrick Guo-Qiang and Poon, Joyce K. S. (2018) Multi-layer silicon nitride-on-silicon polarization-independent grating couplers. Optics Express, 26 (23). pp. 30623-30633. ISSN 1094-4087. http://resolver.caltech.edu/CaltechAUTHORS:20181205-145145838

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Abstract

A polarization-independent grating coupler is proposed and demonstrated in a 3-layer silicon nitride-on-silicon photonic platform. Polarization independent coupling was made possible by the supermodes and added degrees of geometric freedom unique to the 3-layer photonic platform. The grating was designed via optimization algorithms, and the simulated peak coupling efficiency was −2.1 dB with a 1 dB polarization dependent loss (PDL) bandwidth of 69 nm. The fabricated grating couplers had a peak coupling efficiency of −4.8 dB with 1 dB PDL bandwidth of over 100 nm.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1364/oe.26.030623DOIArticle
Additional Information:© 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement. Received 14 Aug 2018; revised 29 Sep 2018; accepted 9 Oct 2018; published 7 Nov 2018. Funding: Natural Sciences and Engineering Research Council (NSERC); Huawei Technologies Canada.
Group:Kavli Nanoscience Institute
Funders:
Funding AgencyGrant Number
Natural Sciences and Engineering Research Council of CanadaUNSPECIFIED
Huawei Technologies CanadaUNSPECIFIED
Record Number:CaltechAUTHORS:20181205-145145838
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20181205-145145838
Official Citation:Jason C. C. Mak, Wesley D. Sacher, Huang Ying, Xianshu Luo, Patrick Guo-Qiang Lo, and Joyce K. S. Poon, "Multi-layer silicon nitride-on-silicon polarization-independent grating couplers," Opt. Express 26, 30623-30633 (2018)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:91517
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:05 Dec 2018 23:35
Last Modified:05 Dec 2018 23:35

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