Transfer of ultra-low phase noise microwave references over the JANET Aurora fibre network using a femtosecond optical frequency comb
Transfer of ultra-low phase noise microwave references over the JANET Aurora fibre network using a femtosecond optical frequency comb
An ultra-low phase noise microwave frequency is transferred over 82 km of installed fibre by propagation of a 30 nm bandwidth optical frequency comb (104 modes). The phase noise induced along the fibre by vibrations and thermal effects is suppressed by implementing a noise cancellation scheme where a portion of the light is sent back to the transmitter through the same fibre. The 6th harmonic of the repetition rate detected before and after the pulse train has travelled a round trip are phase compared and used to generate an error signal that controls a fibre stretcher to compensate for the fibre-induced phase fluctuations. Optical amplifiers are used to compensate for the fibre attenuation and dispersion compensation modules are also employed.
Marra, G.
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Slavík, R.
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Margolis, H.S.
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Lea, S.N.
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Petropoulos, P.
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Richardson, D.J.
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Gill, P.
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Marra, G.
e77197ec-35a9-45a5-99dd-2edcaca0cdb1
Slavík, R.
2591726a-ecc0-4d1a-8e1d-4d0fd8da8f7d
Margolis, H.S.
bd2fc334-eeec-4db4-a301-ecf24e679586
Lea, S.N.
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Petropoulos, P.
522b02cc-9f3f-468e-bca5-e9f58cc9cad7
Richardson, D.J.
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
Gill, P.
48d8acd3-e4e2-4cea-a876-d95d0e842964
Marra, G., Slavík, R., Margolis, H.S., Lea, S.N., Petropoulos, P., Richardson, D.J. and Gill, P.
(2010)
Transfer of ultra-low phase noise microwave references over the JANET Aurora fibre network using a femtosecond optical frequency comb.
Photon 10, , Southampton, United Kingdom.
23 - 26 Aug 2010.
1 pp
.
Record type:
Conference or Workshop Item
(Paper)
Abstract
An ultra-low phase noise microwave frequency is transferred over 82 km of installed fibre by propagation of a 30 nm bandwidth optical frequency comb (104 modes). The phase noise induced along the fibre by vibrations and thermal effects is suppressed by implementing a noise cancellation scheme where a portion of the light is sent back to the transmitter through the same fibre. The 6th harmonic of the repetition rate detected before and after the pulse train has travelled a round trip are phase compared and used to generate an error signal that controls a fibre stretcher to compensate for the fibre-induced phase fluctuations. Optical amplifiers are used to compensate for the fibre attenuation and dispersion compensation modules are also employed.
More information
e-pub ahead of print date: August 2010
Venue - Dates:
Photon 10, , Southampton, United Kingdom, 2010-08-23 - 2010-08-26
Organisations:
Optoelectronics Research Centre
Identifiers
Local EPrints ID: 340786
URI: http://eprints.soton.ac.uk/id/eprint/340786
PURE UUID: a688b6d7-d52b-4ffa-906a-31cbd007b695
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Date deposited: 05 Jul 2012 12:26
Last modified: 15 Mar 2024 03:32
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Contributors
Author:
G. Marra
Author:
R. Slavík
Author:
H.S. Margolis
Author:
S.N. Lea
Author:
P. Petropoulos
Author:
P. Gill
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