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High-capacity directly modulated optical transmitter for 2µm spectral region

High-capacity directly modulated optical transmitter for 2µm spectral region
High-capacity directly modulated optical transmitter for 2µm spectral region
The 2µm wave band is emerging as a potential new window for optical telecommunications with several distinct advantages over the traditional 1.55µm region. First of all, the Hollow-Core Photonic Band Gap Fiber (HC-PBGF) is an emerging transmission fiber candidate with ultra-low nonlinearity and lowest latency (0.3% slower than light propagating in vacuum) that has its minimum loss within the 2µm wavelength band. Secondly, the Thulium-doped fiber amplifier that operates in this spectral region provides significantly more bandwidth than the Erbium-doped fiber amplifier. In this paper we demonstrate a single-channel 2µm transmitter capable of delivering >52 Gbit/s data signals, which is twice the capacity previously-demonstrated. To achieve this we employ discrete multi-tone (DMT) modulation via direct current modulation of a Fabry-Perot semiconductor laser. The 4.4GHz modulation bandwidth of the laser is enhanced by optical injection locking, providing up to 11GHz modulation bandwidth. Transmission over 500m and 3.8km samples of HCPBGF is demonstrated.
0733-8724
1373-1379
Liu, Zhixin
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Chen, Yong
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Li, Zhihong
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Kelly, Brian
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Phelan, Richard
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O'Carroll, John
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Bradley, Tom
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Wooler, John
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Wheeler, Natalie V.
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Heidt, Alexander
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Richter, Thomas
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Schubert, Colja
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Becker, Martin
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Poletti, Francesco
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Petrovich, Marco N.
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Alam, Shaif-ul
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Richardson, David J.
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Slavík, Radan
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Liu, Zhixin
01f60f1d-54b7-4c19-b3f3-9550f9d77733
Chen, Yong
0bfb3083-4cd2-4463-a7a4-f48c4158b15a
Li, Zhihong
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Kelly, Brian
dabd527e-7be6-4383-9120-d23f083add70
Phelan, Richard
cf8597ff-53c7-416e-986f-059bf9f05c93
O'Carroll, John
ff39be7a-6980-40a2-a19a-ca45d4cef6c1
Bradley, Tom
d4cce4f3-bb69-4e14-baee-cd6a88e38101
Wooler, John
6e74b608-c042-483e-ae7b-6261ea05599b
Wheeler, Natalie V.
0fd34178-a77b-4c71-a3a6-86a1f634f1a0
Heidt, Alexander
18f56d74-848c-420c-9ece-715e3e94e97a
Richter, Thomas
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Schubert, Colja
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Becker, Martin
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Poletti, Francesco
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Petrovich, Marco N.
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Alam, Shaif-ul
2b6bdbe5-ddcc-4a88-9057-299360b93435
Richardson, David J.
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
Slavík, Radan
2591726a-ecc0-4d1a-8e1d-4d0fd8da8f7d

Liu, Zhixin, Chen, Yong, Li, Zhihong, Kelly, Brian, Phelan, Richard, O'Carroll, John, Bradley, Tom, Wooler, John, Wheeler, Natalie V., Heidt, Alexander, Richter, Thomas, Schubert, Colja, Becker, Martin, Poletti, Francesco, Petrovich, Marco N., Alam, Shaif-ul, Richardson, David J. and Slavík, Radan (2015) High-capacity directly modulated optical transmitter for 2µm spectral region. IEEE Journal of Lightwave Technology, 33 (7), 1373-1379. (doi:10.1109/JLT.2015.2397700).

Record type: Article

Abstract

The 2µm wave band is emerging as a potential new window for optical telecommunications with several distinct advantages over the traditional 1.55µm region. First of all, the Hollow-Core Photonic Band Gap Fiber (HC-PBGF) is an emerging transmission fiber candidate with ultra-low nonlinearity and lowest latency (0.3% slower than light propagating in vacuum) that has its minimum loss within the 2µm wavelength band. Secondly, the Thulium-doped fiber amplifier that operates in this spectral region provides significantly more bandwidth than the Erbium-doped fiber amplifier. In this paper we demonstrate a single-channel 2µm transmitter capable of delivering >52 Gbit/s data signals, which is twice the capacity previously-demonstrated. To achieve this we employ discrete multi-tone (DMT) modulation via direct current modulation of a Fabry-Perot semiconductor laser. The 4.4GHz modulation bandwidth of the laser is enhanced by optical injection locking, providing up to 11GHz modulation bandwidth. Transmission over 500m and 3.8km samples of HCPBGF is demonstrated.

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e-pub ahead of print date: 28 January 2015
Published date: 2015
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 375361
URI: https://eprints.soton.ac.uk/id/eprint/375361
ISSN: 0733-8724
PURE UUID: 9b94986e-5c19-4355-ac47-0633edecc014
ORCID for Yong Chen: ORCID iD orcid.org/0000-0003-0383-6113
ORCID for Tom Bradley: ORCID iD orcid.org/0000-0001-6568-5811
ORCID for Natalie V. Wheeler: ORCID iD orcid.org/0000-0002-1265-9510
ORCID for Francesco Poletti: ORCID iD orcid.org/0000-0002-1000-3083
ORCID for Marco N. Petrovich: ORCID iD orcid.org/0000-0002-3905-5901
ORCID for David J. Richardson: ORCID iD orcid.org/0000-0002-7751-1058
ORCID for Radan Slavík: ORCID iD orcid.org/0000-0002-9336-4262

Catalogue record

Date deposited: 20 Mar 2015 14:55
Last modified: 24 Sep 2019 00:58

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