UV-induced absorption in all-fiber frequency doublers: characterization and photobleaching
UV-induced absorption in all-fiber frequency doublers: characterization and photobleaching
Periodic UV exposure of thermally poled optical fibers is usually used to produce efficient all-fiber frequency doublers based on second-order nonlinearity. To date, no data regarding UV-induced absorption in poled fibers have been reported. In this study, we measured this absorption and showed how it affects the conversion efficiency of second harmonic generation at wavelengths below ~800 nm. Color centers responsible for induced absorption in poled GeO2 -doped fibers were identified and photobleached by continuous-wave radiation at 532 nm. We demonstrated that photobleaching does not affect the value of nonlinearity but improves the conversion efficiency of all-fiber frequency doublers. The results obtained can be used to improve the efficiency of all-fiber second harmonic generation in the blue-green part of the spectrum.
induced absorption, optical fibers, photobleaching, second harmonic generation, thermal poling
439-442
Gladyshev, Alexey V.
f178f1b2-c3fa-4b63-96e8-b6e356218b84
Corbari, Costantino
273904e8-5f90-4110-bc17-3d3f2c27d461
Medvedkov, Oleg I.
76f1d291-2746-4ce6-b74c-295bf21c61ef
Vasiliev, Sergey A.
e0eb9978-1998-4eab-ae70-dfe904c40dd3
Kazansky, Peter G.
a5d123ec-8ea8-408c-8963-4a6d921fd76c
Dianov, Evgeny M.
9ffd4cdc-4c35-4bfb-b67d-2335cc8ee810
27 January 2015
Gladyshev, Alexey V.
f178f1b2-c3fa-4b63-96e8-b6e356218b84
Corbari, Costantino
273904e8-5f90-4110-bc17-3d3f2c27d461
Medvedkov, Oleg I.
76f1d291-2746-4ce6-b74c-295bf21c61ef
Vasiliev, Sergey A.
e0eb9978-1998-4eab-ae70-dfe904c40dd3
Kazansky, Peter G.
a5d123ec-8ea8-408c-8963-4a6d921fd76c
Dianov, Evgeny M.
9ffd4cdc-4c35-4bfb-b67d-2335cc8ee810
Gladyshev, Alexey V., Corbari, Costantino, Medvedkov, Oleg I., Vasiliev, Sergey A., Kazansky, Peter G. and Dianov, Evgeny M.
(2015)
UV-induced absorption in all-fiber frequency doublers: characterization and photobleaching.
Journal of Lightwave Technology, 33 (2), .
(doi:10.1109/JLT.2015.2389259).
Abstract
Periodic UV exposure of thermally poled optical fibers is usually used to produce efficient all-fiber frequency doublers based on second-order nonlinearity. To date, no data regarding UV-induced absorption in poled fibers have been reported. In this study, we measured this absorption and showed how it affects the conversion efficiency of second harmonic generation at wavelengths below ~800 nm. Color centers responsible for induced absorption in poled GeO2 -doped fibers were identified and photobleached by continuous-wave radiation at 532 nm. We demonstrated that photobleaching does not affect the value of nonlinearity but improves the conversion efficiency of all-fiber frequency doublers. The results obtained can be used to improve the efficiency of all-fiber second harmonic generation in the blue-green part of the spectrum.
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More information
e-pub ahead of print date: 7 January 2015
Published date: 27 January 2015
Keywords:
induced absorption, optical fibers, photobleaching, second harmonic generation, thermal poling
Organisations:
Optoelectronics Research Centre
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Local EPrints ID: 385540
URI: http://eprints.soton.ac.uk/id/eprint/385540
ISSN: 0733-8724
PURE UUID: 31a9fb93-ae40-455e-994a-7e3797a56f04
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Date deposited: 13 Jan 2016 10:49
Last modified: 14 Mar 2024 22:19
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Contributors
Author:
Alexey V. Gladyshev
Author:
Costantino Corbari
Author:
Oleg I. Medvedkov
Author:
Sergey A. Vasiliev
Author:
Evgeny M. Dianov
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