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Microstructured silicon fibre devices

Microstructured silicon fibre devices
Microstructured silicon fibre devices
Silicon photonics is an advanced platform for the development of compact integrated optical devices. Major breakthroughs such as light generation, signal amplification and high-speed modulation have been demonstrated in silicon waveguides due to their large nonlinear effects. Recent fabrication methods have enabled the infiltration of crystalline and amorphous semiconductor materials inside silica capillaries to combine the excellent optoelectronic properties of silicon with the waveguiding capabilities of fibres. This new class of waveguide maintains many of the advantageous properties of commercial silica glass fibres such as robustness and flexibility, as well as offering the potential for seamless integration within existing networks. Furthermore, the silicon fibre platform can also be post-processed to fabricate novel micron-scale devices, beyond what is achievable in their planar counterparts. In this thesis, two forms of fibre-based semiconductor devices have been investigated; tapered silicon core waveguides and whispering gallery mode microresonators. These devices were fabricated as a unique approach to enhance the light-matter interactions for the development of all-optical signal processing devices. Improvements in the crystallinity and the optical transmission properties of polysilicon core fibres were achieved via fibre tapering, enabling the first demonstration of nonlinear propagation in this material. Moreover, different forms of resonators were fabricated from amorphous and polycrystalline silicon core fibres. Ultrafast all-optical modulation via the Kerr nonlinearity is demonstrated at picoseconds switching speeds using pure amorphous silicon resonators and in hybrid silica glass and polysilicon core resonators.
University of Southampton
Suhailin, Fariza Hanim Binti
540f6c74-a557-4ebc-93e4-fae4750aa6b9
Suhailin, Fariza Hanim Binti
540f6c74-a557-4ebc-93e4-fae4750aa6b9
Peacock, Anna
685d924c-ef6b-401b-a0bd-acf1f8e758fc

Suhailin, Fariza Hanim Binti (2017) Microstructured silicon fibre devices. University of Southampton, Physical Sciences and Engineering, Doctoral Thesis, 119pp.

Record type: Thesis (Doctoral)

Abstract

Silicon photonics is an advanced platform for the development of compact integrated optical devices. Major breakthroughs such as light generation, signal amplification and high-speed modulation have been demonstrated in silicon waveguides due to their large nonlinear effects. Recent fabrication methods have enabled the infiltration of crystalline and amorphous semiconductor materials inside silica capillaries to combine the excellent optoelectronic properties of silicon with the waveguiding capabilities of fibres. This new class of waveguide maintains many of the advantageous properties of commercial silica glass fibres such as robustness and flexibility, as well as offering the potential for seamless integration within existing networks. Furthermore, the silicon fibre platform can also be post-processed to fabricate novel micron-scale devices, beyond what is achievable in their planar counterparts. In this thesis, two forms of fibre-based semiconductor devices have been investigated; tapered silicon core waveguides and whispering gallery mode microresonators. These devices were fabricated as a unique approach to enhance the light-matter interactions for the development of all-optical signal processing devices. Improvements in the crystallinity and the optical transmission properties of polysilicon core fibres were achieved via fibre tapering, enabling the first demonstration of nonlinear propagation in this material. Moreover, different forms of resonators were fabricated from amorphous and polycrystalline silicon core fibres. Ultrafast all-optical modulation via the Kerr nonlinearity is demonstrated at picoseconds switching speeds using pure amorphous silicon resonators and in hybrid silica glass and polysilicon core resonators.

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Published date: January 2017

Identifiers

Local EPrints ID: 405516
URI: http://eprints.soton.ac.uk/id/eprint/405516
PURE UUID: 72c88b0e-79a2-4fd3-9120-91f377f439d2
ORCID for Anna Peacock: ORCID iD orcid.org/0000-0002-1940-7172

Catalogue record

Date deposited: 18 Feb 2017 00:22
Last modified: 14 Mar 2019 01:44

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