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Photon pair generation at 2.080µm by Down-conversion

Photon pair generation at 2.080µm by Down-conversion
Photon pair generation at 2.080µm by Down-conversion
Quantum-optical technologies are transforming communication and metrology by enabling security and sensitivity beyond classical limits. Currently, these technologies are available at visible, near-infrared (NIR) and telecom wavelengths but are strongly underdeveloped at longer wavelengths. There is a growing demand for quantum sources operating in the 2 µm region for various applications. For example, such sources can enable daylight satellite-to-ground based quantum communications by taking advantage of an atmospheric transparency window with reduced solar blackbody radiation compared to telecom wavelengths [1,2,3]. Moreover, squeezed 2 µm sources are expected to have an impact on quantum metrology. For example, in gravitational wave detectors (eg. LIGO), such long wavelengths could reduce the quantum noise and scattering loss from crystalline silicon test masses [4]. Here, we report the generation and characterisation of a photon pair source at 2.080 µm with coincidence-to-accidental ratio (CAR) exceeding 10.
Shields, T.
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Prabhakar, S.
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Powell, D.
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Taylor, G.G.
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Morozov, D.
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Ebrahim, M.
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Kues, M.
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Caspani, L.
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Gawith, C.
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Hadfield, R.H.
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Clerici, M.
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Shields, T.
cfca18c5-662f-4712-b102-0621c82b8c07
Prabhakar, S.
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Powell, D.
7f143488-d2d1-407c-ade3-5f126b0174ea
Taylor, G.G.
bbd1fa92-776e-4369-aca3-19abd45542a9
Morozov, D.
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Ebrahim, M.
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Kues, M.
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Caspani, L.
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Gawith, C.
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Hadfield, R.H.
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Clerici, M.
9a188170-d955-4ffa-8883-bfcbdef44301

Shields, T., Prabhakar, S., Powell, D., Taylor, G.G., Morozov, D., Ebrahim, M., Kues, M., Caspani, L., Gawith, C., Hadfield, R.H. and Clerici, M. (2019) Photon pair generation at 2.080µm by Down-conversion. 2019 Conference on Lasers and Electro-Optics, CLEO 2019, San Jose Convention Center, United States. 05 - 10 May 2019. 1 pp . (doi:10.1109/CLEOE-EQEC.2019.8872702).

Record type: Conference or Workshop Item (Poster)

Abstract

Quantum-optical technologies are transforming communication and metrology by enabling security and sensitivity beyond classical limits. Currently, these technologies are available at visible, near-infrared (NIR) and telecom wavelengths but are strongly underdeveloped at longer wavelengths. There is a growing demand for quantum sources operating in the 2 µm region for various applications. For example, such sources can enable daylight satellite-to-ground based quantum communications by taking advantage of an atmospheric transparency window with reduced solar blackbody radiation compared to telecom wavelengths [1,2,3]. Moreover, squeezed 2 µm sources are expected to have an impact on quantum metrology. For example, in gravitational wave detectors (eg. LIGO), such long wavelengths could reduce the quantum noise and scattering loss from crystalline silicon test masses [4]. Here, we report the generation and characterisation of a photon pair source at 2.080 µm with coincidence-to-accidental ratio (CAR) exceeding 10.

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More information

Published date: 17 October 2019
Venue - Dates: 2019 Conference on Lasers and Electro-Optics, CLEO 2019, San Jose Convention Center, United States, 2019-05-05 - 2019-05-10

Identifiers

Local EPrints ID: 441948
URI: http://eprints.soton.ac.uk/id/eprint/441948
PURE UUID: 5da98d4f-02f3-4b52-80db-22a942731ead
ORCID for C. Gawith: ORCID iD orcid.org/0000-0002-3502-3558

Catalogue record

Date deposited: 02 Jul 2020 16:35
Last modified: 03 Jul 2020 00:27

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Contributors

Author: T. Shields
Author: S. Prabhakar
Author: D. Powell
Author: G.G. Taylor
Author: D. Morozov
Author: M. Ebrahim
Author: M. Kues
Author: L. Caspani
Author: C. Gawith ORCID iD
Author: R.H. Hadfield
Author: M. Clerici

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