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Group IV mid-infrared photonics

Group IV mid-infrared photonics
Group IV mid-infrared photonics
In this paper we present SOI, suspended Si, and Ge-on-Si photonic platforms and devices for the mid-infrared. We demonstrate low loss strip and slot waveguides in SOI and show efficient strip-slot couplers. A Vernier configuration based on racetrack resonators in SOI has been also investigated. Mid-infrared detection using defect engineered silicon waveguides is reported at the wavelength of 2-2.5 µm. In order to extend transparency of Si waveguides, the bottom oxide cladding needs to be removed. We report a novel suspended Si design based on subwavelength structures that is more robust than previously reported suspended designs. We have fabricated record low loss Ge-on-Si waveguides, as well as several other passive devices in this platform. All optical modulation in Ge is also analyzed.
Mashanovich, G.Z.
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Nedeljković, M.
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Soler Penadés, J.
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Mitchell, C.J.
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Khokhar, A.Z.
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Littlejohns, C.J.
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Stanković, S.
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Troia, B.
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Wang, Y.
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Reynolds, Scott
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Passaro, V.M.N.
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Shen, Li
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Healy, N.
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Peacock, A.C.
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Alonso-Ramos, C.
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Ortega-Moñux, A.
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Wanguemert-Perez, G.
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Molina-Fernandez, I.
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Rowe, D.J.
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Wilkinson, J.S.
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Cheben, P.
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Ackert, J.J.
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Knights, A.P.
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Thomson, D.J.
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Gardes, F.Y.
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Mashanovich, G.Z.
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Nedeljković, M.
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Soler Penadés, J.
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Mitchell, C.J.
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Khokhar, A.Z.
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Littlejohns, C.J.
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Stanković, S.
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Troia, B.
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Wang, Y.
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Reynolds, Scott
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Passaro, V.M.N.
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Shen, Li
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Healy, N.
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Peacock, A.C.
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Alonso-Ramos, C.
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Ortega-Moñux, A.
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Wanguemert-Perez, G.
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Molina-Fernandez, I.
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Rowe, D.J.
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Wilkinson, J.S.
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Cheben, P.
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Ackert, J.J.
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Knights, A.P.
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Thomson, D.J.
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Gardes, F.Y.
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Mashanovich, G.Z., Nedeljković, M., Soler Penadés, J., Mitchell, C.J., Khokhar, A.Z., Littlejohns, C.J., Stanković, S., Troia, B., Wang, Y., Reynolds, Scott, Passaro, V.M.N., Shen, Li, Healy, N., Peacock, A.C., Alonso-Ramos, C., Ortega-Moñux, A., Wanguemert-Perez, G., Molina-Fernandez, I., Rowe, D.J., Wilkinson, J.S., Cheben, P., Ackert, J.J., Knights, A.P., Thomson, D.J. and Gardes, F.Y. (2015) Group IV mid-infrared photonics. SPIE Conference on Silicon Photonics X, United States. 09 - 12 Feb 2015.

Record type: Conference or Workshop Item (Other)

Abstract

In this paper we present SOI, suspended Si, and Ge-on-Si photonic platforms and devices for the mid-infrared. We demonstrate low loss strip and slot waveguides in SOI and show efficient strip-slot couplers. A Vernier configuration based on racetrack resonators in SOI has been also investigated. Mid-infrared detection using defect engineered silicon waveguides is reported at the wavelength of 2-2.5 µm. In order to extend transparency of Si waveguides, the bottom oxide cladding needs to be removed. We report a novel suspended Si design based on subwavelength structures that is more robust than previously reported suspended designs. We have fabricated record low loss Ge-on-Si waveguides, as well as several other passive devices in this platform. All optical modulation in Ge is also analyzed.

Full text not available from this repository.

More information

Published date: February 2015
Venue - Dates: SPIE Conference on Silicon Photonics X, United States, 2015-02-09 - 2015-02-12
Organisations: Optoelectronics Research Centre, Photonic Systems Circuits & Sensors

Identifiers

Local EPrints ID: 386076
URI: https://eprints.soton.ac.uk/id/eprint/386076
PURE UUID: caefaa91-15d1-4192-beb1-8adfc8c96796
ORCID for M. Nedeljković: ORCID iD orcid.org/0000-0002-9170-7911
ORCID for J. Soler Penadés: ORCID iD orcid.org/0000-0002-1706-8533
ORCID for S. Stanković: ORCID iD orcid.org/0000-0001-6154-3138
ORCID for A.C. Peacock: ORCID iD orcid.org/0000-0002-1940-7172
ORCID for D.J. Rowe: ORCID iD orcid.org/0000-0002-1167-150X
ORCID for J.S. Wilkinson: ORCID iD orcid.org/0000-0003-4712-1697

Catalogue record

Date deposited: 19 Jan 2016 14:42
Last modified: 20 Jul 2019 01:29

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Contributors

Author: M. Nedeljković ORCID iD
Author: C.J. Mitchell
Author: A.Z. Khokhar
Author: C.J. Littlejohns
Author: S. Stanković ORCID iD
Author: B. Troia
Author: Y. Wang
Author: Scott Reynolds
Author: V.M.N. Passaro
Author: Li Shen
Author: N. Healy
Author: A.C. Peacock ORCID iD
Author: C. Alonso-Ramos
Author: A. Ortega-Moñux
Author: G. Wanguemert-Perez
Author: I. Molina-Fernandez
Author: D.J. Rowe ORCID iD
Author: J.S. Wilkinson ORCID iD
Author: P. Cheben
Author: J.J. Ackert
Author: A.P. Knights
Author: D.J. Thomson
Author: F.Y. Gardes

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