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Terahertz bandwidth photonic Hilbert transformers based on synthesized planar Bragg grating fabrication

Terahertz bandwidth photonic Hilbert transformers based on synthesized planar Bragg grating fabrication
Terahertz bandwidth photonic Hilbert transformers based on synthesized planar Bragg grating fabrication
Terahertz bandwidth photonic Hilbert transformers are proposed and experimentally demonstrated. The integrated device is fabricated via a direct UV grating writing technique in a silica-on-silicon platform. The photonic Hilbert transformer operates at bandwidths of up to 2 THz (~16nm), which is at least ten fold greater bandwidth than any previously reported experimental approaches. Achieving this performance requires detailed knowledge of the system transfer function of the direct UV grating writing technique, this allows improved linearity, and yields THz bandwidth Bragg gratings with improved spectral quality. By incorporating a flat-top reflector and Hilbert grating with a waveguide coupler an ultra wideband all-optical single-sideband filter is demonstrated.
0146-9592
3448-3451
Sima, C.
5d4e6b29-c400-4881-952e-63d0768aee6f
Gates, J.C.
b71e31a1-8caa-477e-8556-b64f6cae0dc2
Holmes, C.
16306bb8-8a46-4fd7-bb19-a146758e5263
Mennea, P.L.
d994ba05-bcc1-4be3-8ba1-439fb1535a3f
Zervas, M.N.
1840a474-dd50-4a55-ab74-6f086aa3f701
Smith, P.G.R.
8979668a-8b7a-4838-9a74-1a7cfc6665f6
Sima, C.
5d4e6b29-c400-4881-952e-63d0768aee6f
Gates, J.C.
b71e31a1-8caa-477e-8556-b64f6cae0dc2
Holmes, C.
16306bb8-8a46-4fd7-bb19-a146758e5263
Mennea, P.L.
d994ba05-bcc1-4be3-8ba1-439fb1535a3f
Zervas, M.N.
1840a474-dd50-4a55-ab74-6f086aa3f701
Smith, P.G.R.
8979668a-8b7a-4838-9a74-1a7cfc6665f6

Sima, C., Gates, J.C., Holmes, C., Mennea, P.L., Zervas, M.N. and Smith, P.G.R. (2013) Terahertz bandwidth photonic Hilbert transformers based on synthesized planar Bragg grating fabrication. Optics Letters, 38 (17), 3448-3451. (doi:10.1364/OL.38.003448).

Record type: Article

Abstract

Terahertz bandwidth photonic Hilbert transformers are proposed and experimentally demonstrated. The integrated device is fabricated via a direct UV grating writing technique in a silica-on-silicon platform. The photonic Hilbert transformer operates at bandwidths of up to 2 THz (~16nm), which is at least ten fold greater bandwidth than any previously reported experimental approaches. Achieving this performance requires detailed knowledge of the system transfer function of the direct UV grating writing technique, this allows improved linearity, and yields THz bandwidth Bragg gratings with improved spectral quality. By incorporating a flat-top reflector and Hilbert grating with a waveguide coupler an ultra wideband all-optical single-sideband filter is demonstrated.

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Published date: 1 September 2013
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 360037
URI: https://eprints.soton.ac.uk/id/eprint/360037
ISSN: 0146-9592
PURE UUID: fba1eb0b-5029-4cd8-a0da-ef298c1b2bca
ORCID for J.C. Gates: ORCID iD orcid.org/0000-0001-8671-5987
ORCID for M.N. Zervas: ORCID iD orcid.org/0000-0002-0651-4059

Catalogue record

Date deposited: 22 Nov 2013 13:21
Last modified: 20 Jul 2019 01:23

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