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.
Kong, Deming
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Liu, Yong
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Ren, Zhengqi
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Jung, Yongmin
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Kim, Chanju
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Chen, Yong
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Wheeler, Natalie
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Petrovich, Marco
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Pu, Minhao
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Yvind, Kresten
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Galili, Michael
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Oxenløwe, Leif Katsuo
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Richardson, David J.
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Hu, Hao
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16 July 2022
Kong, Deming
7717b1fd-53b0-40f2-b960-1316d567c1a4
Liu, Yong
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Ren, Zhengqi
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Jung, Yongmin
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Kim, Chanju
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Chen, Yong
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Wheeler, Natalie
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Petrovich, Marco
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Pu, Minhao
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Yvind, Kresten
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Galili, Michael
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Oxenløwe, Leif Katsuo
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Richardson, David J.
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Hu, Hao
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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).
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.
Text
2um_coherent_transmission_by_spectral_translations_R2
- Accepted Manuscript
Text
s41467-022-31884-2
- Version of Record
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
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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
Author:
Chanju Kim
Author:
Minhao Pu
Author:
Kresten Yvind
Author:
Michael Galili
Author:
Leif Katsuo Oxenløwe
Author:
Hao Hu
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