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Multiple access interference rejection in OCDMA using a two-photon absorption based semiconductor device

Multiple access interference rejection in OCDMA using a two-photon absorption based semiconductor device
Multiple access interference rejection in OCDMA using a two-photon absorption based semiconductor device
An experimental demonstration of a two-channel OCDMA system with detection performed using standard linear detection or a TPA-based nonlinear detector is presented. These results show an improvement in the extinction ratio of the decoded signal by 5 dB using TPA detection. A simulation model of the TPA detector used during the experiments was created and used in a four-channel OCDMA system simulation using both linear and nonlinear detection methods. The simulation results show that error-free performance is achievable for a 4-user system using the nonlinear TPA detector while the OCDMA system employing linear detection is severely limited by the effects of noise generated by adjacent optical channels (multiple access interference).
optical code division multiple access (OCDMA), multiple access interference (MAI), two-photon absorption (TPA), optical thresholding and detection
0030-4018
1281-1286
Dexter, K.J.
b4aaa57e-dcdb-4640-a031-e7a986c7ca17
Reid, D.A.
d98266df-a7aa-412c-b1a3-d639be60112d
Maguire, P.J.
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Barry, L.P.
a603eb51-f54e-4f30-95a5-270caf285ae3
Tian, Chun
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Ibsen, Morten
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Petropoulos, Periklis
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Richardson, David J.
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
Dexter, K.J.
b4aaa57e-dcdb-4640-a031-e7a986c7ca17
Reid, D.A.
d98266df-a7aa-412c-b1a3-d639be60112d
Maguire, P.J.
56eaae7f-aae5-4c79-8e9d-90c57cbe5c4b
Barry, L.P.
a603eb51-f54e-4f30-95a5-270caf285ae3
Tian, Chun
070ac71a-b572-4e44-991f-06a5309eb4d8
Ibsen, Morten
22e58138-5ce9-4bed-87e1-735c91f8f3b9
Petropoulos, Periklis
522b02cc-9f3f-468e-bca5-e9f58cc9cad7
Richardson, David J.
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3

Dexter, K.J., Reid, D.A., Maguire, P.J., Barry, L.P., Tian, Chun, Ibsen, Morten, Petropoulos, Periklis and Richardson, David J. (2009) Multiple access interference rejection in OCDMA using a two-photon absorption based semiconductor device. Optics Communications, 282 (7), 1281-1286. (doi:10.1016/j.optcom.2008.12.009).

Record type: Article

Abstract

An experimental demonstration of a two-channel OCDMA system with detection performed using standard linear detection or a TPA-based nonlinear detector is presented. These results show an improvement in the extinction ratio of the decoded signal by 5 dB using TPA detection. A simulation model of the TPA detector used during the experiments was created and used in a four-channel OCDMA system simulation using both linear and nonlinear detection methods. The simulation results show that error-free performance is achievable for a 4-user system using the nonlinear TPA detector while the OCDMA system employing linear detection is severely limited by the effects of noise generated by adjacent optical channels (multiple access interference).

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Published date: 1 April 2009
Keywords: optical code division multiple access (OCDMA), multiple access interference (MAI), two-photon absorption (TPA), optical thresholding and detection

Identifiers

Local EPrints ID: 78879
URI: https://eprints.soton.ac.uk/id/eprint/78879
ISSN: 0030-4018
PURE UUID: f6410484-44c6-4d79-ae41-75724a42689a
ORCID for Periklis Petropoulos: ORCID iD orcid.org/0000-0002-1576-8034
ORCID for David J. Richardson: ORCID iD orcid.org/0000-0002-7751-1058

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Date deposited: 15 Mar 2010
Last modified: 30 Nov 2019 01:41

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Contributors

Author: K.J. Dexter
Author: D.A. Reid
Author: P.J. Maguire
Author: L.P. Barry
Author: Chun Tian
Author: Morten Ibsen

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