Acousto-optic control of speckle contrast in multimode fibers with a cylindrical piezoelectric transducer oscillating in the radial direction
Acousto-optic control of speckle contrast in multimode fibers with a cylindrical piezoelectric transducer oscillating in the radial direction
We report efficient acousto-optic control of speckle contrast at the output of multimode fibers (MMFs) using a cylindrical piezoelectric transducer (PZT) vibrating in the radial direction. With appropriate packaging of an MMF around the PZT, periodic stretching and subsequent intensity modulation were achieved over the wound fiber to result in time-averaged smoothing of the output within a short time. It was experimentally confirmed that light passed through the vibrating PZT-fiber assembly maintains the virtually partial coherence irrespective of the guide length and power splitting. Real-time vibration-off/on movies were presented, and their single-frame excerpts were analyzed.
17536-17546
Ha, Woosung
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Lee, Sejin
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Jung, Yongmin
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Kim, Jun Ki
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Oh, Kyunghwan
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16 September 2009
Ha, Woosung
1a0a2de5-62a3-460c-84ad-a7abc0d78142
Lee, Sejin
fcd2bfbd-fff7-4378-a390-5739f65a5265
Jung, Yongmin
6685e51e-be47-4c96-8c4b-65aee3b5126d
Kim, Jun Ki
22ca8c39-567d-4131-8d28-07c4668ed890
Oh, Kyunghwan
b4a576b7-fc35-4c55-aa2a-50b3f3260d1b
Ha, Woosung, Lee, Sejin, Jung, Yongmin, Kim, Jun Ki and Oh, Kyunghwan
(2009)
Acousto-optic control of speckle contrast in multimode fibers with a cylindrical piezoelectric transducer oscillating in the radial direction.
Optics Express, 17 (20), .
(doi:10.1364/OE.17.017536).
Abstract
We report efficient acousto-optic control of speckle contrast at the output of multimode fibers (MMFs) using a cylindrical piezoelectric transducer (PZT) vibrating in the radial direction. With appropriate packaging of an MMF around the PZT, periodic stretching and subsequent intensity modulation were achieved over the wound fiber to result in time-averaged smoothing of the output within a short time. It was experimentally confirmed that light passed through the vibrating PZT-fiber assembly maintains the virtually partial coherence irrespective of the guide length and power splitting. Real-time vibration-off/on movies were presented, and their single-frame excerpts were analyzed.
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oe-17-20-17536.pdf
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e-pub ahead of print date: 14 September 2009
Published date: 16 September 2009
Organisations:
Optoelectronics Research Centre
Identifiers
Local EPrints ID: 378518
URI: http://eprints.soton.ac.uk/id/eprint/378518
ISSN: 1094-4087
PURE UUID: 52bc0336-10c3-492f-84b0-647a345c6c83
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Date deposited: 29 Jun 2015 13:33
Last modified: 15 Mar 2024 03:31
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Author:
Woosung Ha
Author:
Sejin Lee
Author:
Jun Ki Kim
Author:
Kyunghwan Oh
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