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Suspended polarization beam splitter on silicon-on-insulator
KTH, School of Electrical Engineering (EES), Micro and Nanosystems.ORCID iD: 0000-0001-7249-7392
KTH, School of Electrical Engineering (EES), Micro and Nanosystems.
KTH, School of Electrical Engineering (EES), Micro and Nanosystems.ORCID iD: 0000-0001-9008-8402
2018 (English)In: Optics Express, ISSN 1094-4087, E-ISSN 1094-4087, Vol. 26, no 3, p. 2675-2681Article in journal (Refereed) Published
Abstract [en]

Polarization handling in suspended silicon photonics has the potential to enable new applications in fields such as optomechanics, photonic microelectromechanical systems, and mid-infrared photonics. In this work, we experimentally demonstrate a suspended polarization beam splitter on a silicon-on-insulator waveguide platform, based on an asymmetric directional coupler. Our device presents polarization extinction ratios above 10 and 15 dB, and insertion losses below 5 and 1 dB, for TM and TE polarized input, respectively, across a 40 nm wavelength range at 1550 nm, with a device length below 8 ┬Ám. These results make our suspended polarization beam splitter a promising building block for future systems based on polarization diversity suspended photonics.

Place, publisher, year, edition, pages
Optical Society of America, 2018. Vol. 26, no 3, p. 2675-2681
Keywords [en]
photonics, MEMS, microelectromechanical systems, photonic MEMS, optics, polarization, silicon photonics
National Category
Nano Technology Telecommunications Other Electrical Engineering, Electronic Engineering, Information Engineering Other Physics Topics
Research subject
Electrical Engineering; Telecommunication; Physics
Identifiers
URN: urn:nbn:se:kth:diva-221828DOI: 10.1364/OE.26.002675ISI: 000425365900049Scopus ID: 2-s2.0-85041459662OAI: oai:DiVA.org:kth-221828DiVA, id: diva2:1177825
Projects
vr-het
Funder
Swedish Research Council, 621-2012-5364
Note

QC 20180206

Available from: 2018-01-26 Created: 2018-01-26 Last updated: 2018-03-13Bibliographically approved

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