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High-speed optical signal processing systems based on the switching of broadband frequency-chirped pulses

High-speed optical signal processing systems based on the switching of broadband frequency-chirped pulses
High-speed optical signal processing systems based on the switching of broadband frequency-chirped pulses
Future optical communication networks are likely to require a range of advanced OTDM channel processing functions if the full potential of the fibre transmission bandwidth is to be exploited. Critical processing functions include amongst others time-division demultiplexing, signal regeneration, channel add/drop, signal format conversion and packet compression. Ideally, these processes will be performed directly in the optical domain since this removes any bandwidth constraints associated with the use of electrical signals. In this presentation we describe various optical processing systems that exploit time-to-wavelength signal conversion. All of our systems are based on the nonlinear optical sampling of a linearly chirped pulse that is shaped and synchronised to temporally overlap with a given number of (relatively high-power) OTDM tributary channels in a fibre based switch. The individual tributary OTDM channels are mapped directly onto distinct WDM channels at the switch output by the nonlinear sampling process. Further processing of the OTDM channels can then be performed simply by passive filtering of the resulting WDM channels. If required, the filtered WDM signal can then be mapped back into the time domain onto an OTDM signal in a second nonlinear fibre switch. To highlight the power of the approach we shall present experimental demonstrations of simultaneous demultiplexing of each of the constituent tributary channels of an OTDM signal, tributary channel aggregation into compressed packets, and 10Gbit/s multi-channel add/drop from a 40 Gbit/s TDM signal.
Almeida, P.J.
94d05bc1-3cb1-4394-af30-9ab1c36b0311
Petropoulos, P.
522b02cc-9f3f-468e-bca5-e9f58cc9cad7
Ibsen, M.
22e58138-5ce9-4bed-87e1-735c91f8f3b9
Richardson, D.J.
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
Almeida, P.J.
94d05bc1-3cb1-4394-af30-9ab1c36b0311
Petropoulos, P.
522b02cc-9f3f-468e-bca5-e9f58cc9cad7
Ibsen, M.
22e58138-5ce9-4bed-87e1-735c91f8f3b9
Richardson, D.J.
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3

Almeida, P.J., Petropoulos, P., Ibsen, M. and Richardson, D.J. (2004) High-speed optical signal processing systems based on the switching of broadband frequency-chirped pulses. IOP Meeting: Nonlinear Optics in Communications. 30 Jun 2004. 1 pp .

Record type: Conference or Workshop Item (Paper)

Abstract

Future optical communication networks are likely to require a range of advanced OTDM channel processing functions if the full potential of the fibre transmission bandwidth is to be exploited. Critical processing functions include amongst others time-division demultiplexing, signal regeneration, channel add/drop, signal format conversion and packet compression. Ideally, these processes will be performed directly in the optical domain since this removes any bandwidth constraints associated with the use of electrical signals. In this presentation we describe various optical processing systems that exploit time-to-wavelength signal conversion. All of our systems are based on the nonlinear optical sampling of a linearly chirped pulse that is shaped and synchronised to temporally overlap with a given number of (relatively high-power) OTDM tributary channels in a fibre based switch. The individual tributary OTDM channels are mapped directly onto distinct WDM channels at the switch output by the nonlinear sampling process. Further processing of the OTDM channels can then be performed simply by passive filtering of the resulting WDM channels. If required, the filtered WDM signal can then be mapped back into the time domain onto an OTDM signal in a second nonlinear fibre switch. To highlight the power of the approach we shall present experimental demonstrations of simultaneous demultiplexing of each of the constituent tributary channels of an OTDM signal, tributary channel aggregation into compressed packets, and 10Gbit/s multi-channel add/drop from a 40 Gbit/s TDM signal.

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More information

Published date: 2004
Venue - Dates: IOP Meeting: Nonlinear Optics in Communications, 2004-06-30 - 2004-06-30

Identifiers

Local EPrints ID: 41704
URI: https://eprints.soton.ac.uk/id/eprint/41704
PURE UUID: 53d39042-8d6b-45b4-a06f-a885e0f211e8
ORCID for P. Petropoulos: ORCID iD orcid.org/0000-0002-1576-8034
ORCID for D.J. Richardson: ORCID iD orcid.org/0000-0002-7751-1058

Catalogue record

Date deposited: 13 Oct 2006
Last modified: 06 Mar 2019 01:37

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