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Super-broadband on-chip continuous spectral translation unlocking coherent optical communications beyond conventional telecom bands

Super-broadband on-chip continuous spectral translation unlocking coherent optical communications beyond conventional telecom bands
Super-broadband on-chip continuous spectral translation unlocking coherent optical communications beyond conventional telecom bands
Today’s optical communication systems are fast approaching their capacity limits in the conventional telecom bands. Opening up new wavelength bands is becoming an appealing solution to the capacity crunch. However, this ordinarily requires the development of optical transceivers for any new wavelength band, which is time-consuming and expensive. Here, we present an on-chip continuous spectral translation method that leverages existing commercial transceivers to unlock the vast and currently unused potential new wavelength bands. The spectral translators are continuous-wave laser pumped aluminum gallium arsenide on insulator (AlGaAsOI) nanowaveguides that provide a continuous conversion bandwidth over an octave. We demonstrate coherent transmission in the 2-μm band using well-developed conventional C-band transmitters and coherent receivers, as an example of the potential of the spectral translators that could also unlock communications at other wavelength bands. We demonstrate 318.25-Gbit s−1 Nyquist wavelength-division multiplexed coherent transmission over a 1.15-km hollow-core fibre using this approach. Our demonstration paves the way for transmitting, detecting, and processing signals at wavelength bands beyond the capability of today’s devices.
2041-1723
Kong, Deming
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Liu, Yong
47fcf30e-9b74-41b4-9532-243dfd627f9e
Ren, Zhengqi
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Jung, Yongmin
6685e51e-be47-4c96-8c4b-65aee3b5126d
Kim, Chanju
e0e3d73b-a46a-460b-832d-66a423f9a63a
Chen, Yong
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Wheeler, Natalie
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Petrovich, Marco
bfe895a0-da85-4a40-870a-2c7bfc84a4cf
Pu, Minhao
9f83d114-44dc-477e-be60-4770696fca01
Yvind, Kresten
5a7070f5-2531-4873-a5b9-815616fa8c1b
Galili, Michael
cddaa3b4-e164-4305-951b-a63306d325e8
Oxenløwe, Leif Katsuo
1c01e3f5-29bd-4a4d-8707-ad9b76cf7462
Richardson, David J.
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
Hu, Hao
7d1e5f91-a6db-4dfb-8957-24b61e301bd2
Kong, Deming
7717b1fd-53b0-40f2-b960-1316d567c1a4
Liu, Yong
47fcf30e-9b74-41b4-9532-243dfd627f9e
Ren, Zhengqi
132134d5-1da7-494a-802a-08d7dd9f4451
Jung, Yongmin
6685e51e-be47-4c96-8c4b-65aee3b5126d
Kim, Chanju
e0e3d73b-a46a-460b-832d-66a423f9a63a
Chen, Yong
0bfb3083-4cd2-4463-a7a4-f48c4158b15a
Wheeler, Natalie
0fd34178-a77b-4c71-a3a6-86a1f634f1a0
Petrovich, Marco
bfe895a0-da85-4a40-870a-2c7bfc84a4cf
Pu, Minhao
9f83d114-44dc-477e-be60-4770696fca01
Yvind, Kresten
5a7070f5-2531-4873-a5b9-815616fa8c1b
Galili, Michael
cddaa3b4-e164-4305-951b-a63306d325e8
Oxenløwe, Leif Katsuo
1c01e3f5-29bd-4a4d-8707-ad9b76cf7462
Richardson, David J.
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
Hu, Hao
7d1e5f91-a6db-4dfb-8957-24b61e301bd2

Kong, Deming, Liu, Yong, Ren, Zhengqi, Jung, Yongmin, Kim, Chanju, Chen, Yong, Wheeler, Natalie, Petrovich, Marco, Pu, Minhao, Yvind, Kresten, Galili, Michael, Oxenløwe, Leif Katsuo, Richardson, David J. and Hu, Hao (2022) Super-broadband on-chip continuous spectral translation unlocking coherent optical communications beyond conventional telecom bands. Nature Communications, 13 (1), [4139]. (doi:10.1038/s41467-022-31884-2).

Record type: Article

Abstract

Today’s optical communication systems are fast approaching their capacity limits in the conventional telecom bands. Opening up new wavelength bands is becoming an appealing solution to the capacity crunch. However, this ordinarily requires the development of optical transceivers for any new wavelength band, which is time-consuming and expensive. Here, we present an on-chip continuous spectral translation method that leverages existing commercial transceivers to unlock the vast and currently unused potential new wavelength bands. The spectral translators are continuous-wave laser pumped aluminum gallium arsenide on insulator (AlGaAsOI) nanowaveguides that provide a continuous conversion bandwidth over an octave. We demonstrate coherent transmission in the 2-μm band using well-developed conventional C-band transmitters and coherent receivers, as an example of the potential of the spectral translators that could also unlock communications at other wavelength bands. We demonstrate 318.25-Gbit s−1 Nyquist wavelength-division multiplexed coherent transmission over a 1.15-km hollow-core fibre using this approach. Our demonstration paves the way for transmitting, detecting, and processing signals at wavelength bands beyond the capability of today’s devices.

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2um_coherent_transmission_by_spectral_translations_R2 - Accepted Manuscript
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More information

Accepted/In Press date: 5 July 2022
Published date: 16 July 2022
Additional Information: Funding Information: H.H. acknowledges the research grant (15401) of the Young Investigator Program (2MAC) from the VILLUM FONDEN. L.K.O. acknowledges funding from the Danish National Research Foundation (DNRF) through the Research Centre of Excellence, Silicon Photonics for Optical Communications (SPOC) (ref. DNRF123). D.J.R. acknowledges the UK Engineering and Physical Sciences Research Council (EPSRC) through the “Airguide Photonics” Programme Grant (EP/P030181/1). N.V.W. acknowledges the Royal Society (University Research Fellowship). The authors gratefully acknowledge Francesco Poletti for his contribution to the design and fabrication of the 19-cell HCF. Publisher Copyright: © 2022, The Author(s).

Identifiers

Local EPrints ID: 468885
URI: http://eprints.soton.ac.uk/id/eprint/468885
ISSN: 2041-1723
PURE UUID: da08b074-ea90-47a7-9c6c-fb1b5250d93a
ORCID for Zhengqi Ren: ORCID iD orcid.org/0000-0003-1877-893X
ORCID for Yongmin Jung: ORCID iD orcid.org/0000-0002-9054-4372
ORCID for Yong Chen: ORCID iD orcid.org/0000-0003-0383-6113
ORCID for Natalie Wheeler: ORCID iD orcid.org/0000-0002-1265-9510
ORCID for Marco Petrovich: ORCID iD orcid.org/0000-0002-3905-5901
ORCID for David J. Richardson: ORCID iD orcid.org/0000-0002-7751-1058

Catalogue record

Date deposited: 31 Aug 2022 16:52
Last modified: 06 Jun 2024 01:52

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Contributors

Author: Deming Kong
Author: Yong Liu
Author: Zhengqi Ren ORCID iD
Author: Yongmin Jung ORCID iD
Author: Chanju Kim
Author: Yong Chen ORCID iD
Author: Natalie Wheeler ORCID iD
Author: Marco Petrovich ORCID iD
Author: Minhao Pu
Author: Kresten Yvind
Author: Michael Galili
Author: Leif Katsuo Oxenløwe
Author: Hao Hu

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