Overcoming the speckle correlation limit to achieve a ﬁber wavemeter with attometer resolution

Graham David Bruce; Laura O'Donnell; Mingzhou Chen; Kishan Dholakia

doi:10.1364/OL.44.001367

Overcoming the speckle correlation limit to achieve a ﬁber wavemeter with attometer resolution

Graham David Bruce, Laura O'Donnell, Mingzhou Chen, Kishan Dholakia

Research output: Contribution to journal › Article › peer-review

Abstract

The measurement of the wavelength of light using speckle is a promising tool for the realization of compact and precise wavemeters and spectrometers. However, the resolution of these devices is limited by strong correlations between the speckle patterns produced by closely spaced wavelengths. Here, we show how principal component analysis of speckle images provides a route to overcome this limit. Using this, we demonstrate a compact wavemeter that measures attometer-scale wavelength changes of a stabilized diode laser, eight orders of magnitude below the speckle correlation limit.

Original language	English
Pages (from-to)	1367-1370
Journal	Optics Letters
Volume	44
Issue number	6
Early online date	7 Mar 2019
DOIs	https://doi.org/10.1364/OL.44.001367
Publication status	Published - 15 Mar 2019

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10.1364/OL.44.001367

Dholakia_2019_OptLett_SpeckleCorrFiberWavelength_AAM
© 2019 Optical Society of America. This work has been made available online in accordance with the publisher’s policies. This is the author created accepted version manuscript following peer review and as such may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1364/OL.44.001367
Accepted author manuscript, 1.45 MB

3 Finished

M Squared - USTAN Biophotonics Nexus: M Sqaured - St Andrews Biophotonics Nexus
Dholakia, K. (PI)
EPSRC
1/11/17 → 31/10/22
Project: Standard
MCLAREN: Miniaturised Cold Atom: MCLAREN: Miniaturised Cold Atom Gravimeter for Space Applications
Dholakia, K. (PI)
EPSRC
1/10/17 → 31/03/19
Project: Standard
Making the most of interference: Making the most of interference: new metrology application of laser speckle
Dholakia, K. (PI)
The Leverhulme Trust
1/09/17 → 30/11/20
Project: Standard

Data underpinning: Overcoming the speckle correlation limit to achieve a fiber wavemeter with attometer resolution
Bruce, G. D. (Creator), O'Donnell, L. (Creator), Chen, M. (Creator) & Dholakia, K. (Creator), University of St Andrews, 4 Feb 2019
DOI: 10.17630/c567afee-de2a-4c8c-9413-0f0f1bb8df64
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3 Article

Femtometer-resolved simultaneous measurement of multiple laser wavelengths in a speckle wavemeter
Bruce, G. D., O'Donnell, L., Chen, M., Facchin, M. & Dholakia, K., 1 Apr 2020, In: Optics Letters. 45, 7, p. 1926-1929
Research output: Contribution to journal › Article › peer-review

Open Access
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High speed determination of laser wavelength using Poincaré descriptors of speckle
O'Donnell, L., Dholakia, K. & Bruce, G. D., 15 Mar 2020, In: Optics Communications. 459, 5 p., 124906.
Research output: Contribution to journal › Article › peer-review

Open Access
File
Speckle-based determination of the polarisation state of single and multiple laser beams
Facchin, M., Bruce, G. D. & Dholakia, K., 15 May 2020, In: OSA Continuum. 3, 5, p. 1302-1313 12 p.
Research output: Contribution to journal › Article › peer-review

Open Access
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Cite this

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title = "Overcoming the speckle correlation limit to achieve a ﬁber wavemeter with attometer resolution",

abstract = "The measurement of the wavelength of light using speckle is a promising tool for the realization of compact and precise wavemeters and spectrometers. However, the resolution of these devices is limited by strong correlations between the speckle patterns produced by closely spaced wavelengths. Here, we show how principal component analysis of speckle images provides a route to overcome this limit. Using this, we demonstrate a compact wavemeter that measures attometer-scale wavelength changes of a stabilized diode laser, eight orders of magnitude below the speckle correlation limit.",

author = "Bruce, {Graham David} and Laura O'Donnell and Mingzhou Chen and Kishan Dholakia",

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language = "English",

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AU - Dholakia, Kishan

PY - 2019/3/15

Y1 - 2019/3/15

N2 - The measurement of the wavelength of light using speckle is a promising tool for the realization of compact and precise wavemeters and spectrometers. However, the resolution of these devices is limited by strong correlations between the speckle patterns produced by closely spaced wavelengths. Here, we show how principal component analysis of speckle images provides a route to overcome this limit. Using this, we demonstrate a compact wavemeter that measures attometer-scale wavelength changes of a stabilized diode laser, eight orders of magnitude below the speckle correlation limit.

AB - The measurement of the wavelength of light using speckle is a promising tool for the realization of compact and precise wavemeters and spectrometers. However, the resolution of these devices is limited by strong correlations between the speckle patterns produced by closely spaced wavelengths. Here, we show how principal component analysis of speckle images provides a route to overcome this limit. Using this, we demonstrate a compact wavemeter that measures attometer-scale wavelength changes of a stabilized diode laser, eight orders of magnitude below the speckle correlation limit.

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DO - 10.1364/OL.44.001367

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JO - Optics Letters

JF - Optics Letters

IS - 6

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Overcoming the speckle correlation limit to achieve a ﬁber wavemeter with attometer resolution

Abstract

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Projects

M Squared - USTAN Biophotonics Nexus: M Sqaured - St Andrews Biophotonics Nexus

MCLAREN: Miniaturised Cold Atom: MCLAREN: Miniaturised Cold Atom Gravimeter for Space Applications

Making the most of interference: Making the most of interference: new metrology application of laser speckle

Datasets

Data underpinning: Overcoming the speckle correlation limit to achieve a fiber wavemeter with attometer resolution

Research output

Femtometer-resolved simultaneous measurement of multiple laser wavelengths in a speckle wavemeter

High speed determination of laser wavelength using Poincaré descriptors of speckle

Speckle-based determination of the polarisation state of single and multiple laser beams

Cite this