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Planarized fiber-FHD optical composite

Planarized fiber-FHD optical composite
Planarized fiber-FHD optical composite
Traditionally the precision placement and adhesion of optical fiber to an optical planar substrate has been made through use of solder, glass frit, glues or epoxies. These generally have disadvantages that include mechanical weakness in harsh environments (e.g. high temperature, high pressure and exposure to common solvents) and poor optical characteristics (e.g. high optical loss, high scattering and modal/refractive index mismatch with optical fiber). In this work we shall present an approach that overcomes these disadvantages, through embedding and consolidating a fiber directly upon a planar substrate layer using Flame Hydrolysis Deposition (FHD). The result is a planarized composite that is mechanically robust in harsh environments and is of planar optical quality. The deposited silica layers can be tailored in thickness, refractive index and anisotropic stress, with the ability for multiple layers to be deposited sequentially to achieve planar guiding. The technique is compatible with a lithography toolset allowing full planar integration techniques; physical micromachining capability allowing fiber evanescent field access and Bragg grating writing. The components that can be developed using this technique include precision layer-up fiber (e.g. high density fiber packing, precision fiber lengths and delay lines), hybrid fiber-planar devices (e.g. MOEMS, evanescent field sensors and environmentally stabilised narrow line lasers) and optical pump schemes (e.g. fiber pumping, pump strippers and mode strippers). We shall report the latest developments in fabrication, capability and components
Holmes, C.
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Carpenter, L.G.
0daa548e-0d42-4b06-b914-45bfbec41759
Gates, J.C.
b71e31a1-8caa-477e-8556-b64f6cae0dc2
Gawith, C.B.E.
926665c0-84c7-4a1d-ae19-ee6d7d14c43e
Smith, P.G.R.
8979668a-8b7a-4838-9a74-1a7cfc6665f6
Holmes, C.
16306bb8-8a46-4fd7-bb19-a146758e5263
Carpenter, L.G.
0daa548e-0d42-4b06-b914-45bfbec41759
Gates, J.C.
b71e31a1-8caa-477e-8556-b64f6cae0dc2
Gawith, C.B.E.
926665c0-84c7-4a1d-ae19-ee6d7d14c43e
Smith, P.G.R.
8979668a-8b7a-4838-9a74-1a7cfc6665f6

Holmes, C., Carpenter, L.G., Gates, J.C., Gawith, C.B.E. and Smith, P.G.R. (2015) Planarized fiber-FHD optical composite. SPIE Photonics West: Photonic Instrumentation Engineering II, United States. 07 - 12 Feb 2015.

Record type: Conference or Workshop Item (Paper)

Abstract

Traditionally the precision placement and adhesion of optical fiber to an optical planar substrate has been made through use of solder, glass frit, glues or epoxies. These generally have disadvantages that include mechanical weakness in harsh environments (e.g. high temperature, high pressure and exposure to common solvents) and poor optical characteristics (e.g. high optical loss, high scattering and modal/refractive index mismatch with optical fiber). In this work we shall present an approach that overcomes these disadvantages, through embedding and consolidating a fiber directly upon a planar substrate layer using Flame Hydrolysis Deposition (FHD). The result is a planarized composite that is mechanically robust in harsh environments and is of planar optical quality. The deposited silica layers can be tailored in thickness, refractive index and anisotropic stress, with the ability for multiple layers to be deposited sequentially to achieve planar guiding. The technique is compatible with a lithography toolset allowing full planar integration techniques; physical micromachining capability allowing fiber evanescent field access and Bragg grating writing. The components that can be developed using this technique include precision layer-up fiber (e.g. high density fiber packing, precision fiber lengths and delay lines), hybrid fiber-planar devices (e.g. MOEMS, evanescent field sensors and environmentally stabilised narrow line lasers) and optical pump schemes (e.g. fiber pumping, pump strippers and mode strippers). We shall report the latest developments in fabrication, capability and components

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More information

Published date: February 2015
Venue - Dates: SPIE Photonics West: Photonic Instrumentation Engineering II, United States, 2015-02-07 - 2015-02-12
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 375123
URI: https://eprints.soton.ac.uk/id/eprint/375123
PURE UUID: 6283f4cf-fe3f-41e0-829e-d376c7f1c2ae
ORCID for C. Holmes: ORCID iD orcid.org/0000-0001-9021-3760
ORCID for J.C. Gates: ORCID iD orcid.org/0000-0001-8671-5987
ORCID for C.B.E. Gawith: ORCID iD orcid.org/0000-0002-3502-3558
ORCID for P.G.R. Smith: ORCID iD orcid.org/0000-0003-0319-718X

Catalogue record

Date deposited: 13 Mar 2015 09:16
Last modified: 17 Oct 2019 00:38

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Contributors

Author: C. Holmes ORCID iD
Author: L.G. Carpenter
Author: J.C. Gates ORCID iD
Author: C.B.E. Gawith ORCID iD
Author: P.G.R. Smith ORCID iD

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