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Pulse distortion caused by waveguide inhomogeneity in nonlinear optical wavelength converters
Low-noise integrated all-optical wavelength converters that can be operated in short pulse regime are essential tools to overcome contention resolution in a modern communication network, based on wavelength division multiplexing. Any imperfect functionality in such devices causes non-ideal optical p...
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| Published in: | Scientific reports 2023-01, Vol.13 (1), p.1534-1534, Article 1534 |
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| creator | Paygan, Danial Izadi, Mohammad Amin Mousavi, S. Faezeh Nouroozi, Rahman |
| description | Low-noise integrated all-optical wavelength converters that can be operated in short pulse regime are essential tools to overcome contention resolution in a modern communication network, based on wavelength division multiplexing. Any imperfect functionality in such devices causes non-ideal optical power transfer to the converted data pulses. All imperfections during the preparation and operation of the wavelength converters can be addressed to the waveguide inhomogeneity which distorts data pulses to be converted. This paper reports different waveguide inhomogeneity effects on the pulse distortion while using periodically poled lithium niobate waveguide as wavelength converters. Three types of
χ
(
2
)
-based nonlinear optical processes, including second harmonic generation, difference frequency generation, and cascaded second harmonic generation/difference frequency generation are numerically studied to show that any constant, linear, and quadratic waveguide inhomogeneity causes short pulse (down to 1 ns) distortion in such wavelength converters. In addition, it is shown that the reconstruction of
sech
2
-shaped generated pulses is possible, when suitable upside-down quadratic variations of obtained inhomogeneity are deliberately induced in the waveguide. Notably, for pulsed second harmonic generation, the generated pulse can be compressed using an upside-down quadratic phase mismatch. |
| doi_str_mv | 10.1038/s41598-023-28799-3 |
| format | article |
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χ
(
2
)
-based nonlinear optical processes, including second harmonic generation, difference frequency generation, and cascaded second harmonic generation/difference frequency generation are numerically studied to show that any constant, linear, and quadratic waveguide inhomogeneity causes short pulse (down to 1 ns) distortion in such wavelength converters. In addition, it is shown that the reconstruction of
sech
2
-shaped generated pulses is possible, when suitable upside-down quadratic variations of obtained inhomogeneity are deliberately induced in the waveguide. Notably, for pulsed second harmonic generation, the generated pulse can be compressed using an upside-down quadratic phase mismatch.</description><identifier>ISSN: 2045-2322</identifier><identifier>EISSN: 2045-2322</identifier><identifier>DOI: 10.1038/s41598-023-28799-3</identifier><identifier>PMID: 36707531</identifier><language>eng</language><publisher>London: Nature Publishing Group UK</publisher><subject>639/766/1130 ; 639/766/1130/2799 ; 639/766/25 ; Communication ; Communications networks ; Electric fields ; Humanities and Social Sciences ; Investigations ; Lithium ; multidisciplinary ; Optics ; Propagation ; Science ; Science (multidisciplinary) ; Wave division multiplexing ; Wavelength</subject><ispartof>Scientific reports, 2023-01, Vol.13 (1), p.1534-1534, Article 1534</ispartof><rights>The Author(s) 2023</rights><rights>2023. The Author(s).</rights><rights>The Author(s) 2023. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c421t-1807d9d94f488dfce350c97b8369faa1c981908cd6a626fb9bec2c2e9817d2873</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.proquest.com/docview/2770190331/fulltextPDF?pq-origsite=primo$$EPDF$$P50$$Gproquest$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.proquest.com/docview/2770190331?pq-origsite=primo$$EHTML$$P50$$Gproquest$$Hfree_for_read</linktohtml><link.rule.ids>230,314,725,778,782,883,25740,27911,27912,36999,37000,44577,53778,53780,74881</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/36707531$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Paygan, Danial</creatorcontrib><creatorcontrib>Izadi, Mohammad Amin</creatorcontrib><creatorcontrib>Mousavi, S. Faezeh</creatorcontrib><creatorcontrib>Nouroozi, Rahman</creatorcontrib><title>Pulse distortion caused by waveguide inhomogeneity in nonlinear optical wavelength converters</title><title>Scientific reports</title><addtitle>Sci Rep</addtitle><addtitle>Sci Rep</addtitle><description>Low-noise integrated all-optical wavelength converters that can be operated in short pulse regime are essential tools to overcome contention resolution in a modern communication network, based on wavelength division multiplexing. Any imperfect functionality in such devices causes non-ideal optical power transfer to the converted data pulses. All imperfections during the preparation and operation of the wavelength converters can be addressed to the waveguide inhomogeneity which distorts data pulses to be converted. This paper reports different waveguide inhomogeneity effects on the pulse distortion while using periodically poled lithium niobate waveguide as wavelength converters. Three types of
χ
(
2
)
-based nonlinear optical processes, including second harmonic generation, difference frequency generation, and cascaded second harmonic generation/difference frequency generation are numerically studied to show that any constant, linear, and quadratic waveguide inhomogeneity causes short pulse (down to 1 ns) distortion in such wavelength converters. In addition, it is shown that the reconstruction of
sech
2
-shaped generated pulses is possible, when suitable upside-down quadratic variations of obtained inhomogeneity are deliberately induced in the waveguide. 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Faezeh</au><au>Nouroozi, Rahman</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Pulse distortion caused by waveguide inhomogeneity in nonlinear optical wavelength converters</atitle><jtitle>Scientific reports</jtitle><stitle>Sci Rep</stitle><addtitle>Sci Rep</addtitle><date>2023-01-27</date><risdate>2023</risdate><volume>13</volume><issue>1</issue><spage>1534</spage><epage>1534</epage><pages>1534-1534</pages><artnum>1534</artnum><issn>2045-2322</issn><eissn>2045-2322</eissn><abstract>Low-noise integrated all-optical wavelength converters that can be operated in short pulse regime are essential tools to overcome contention resolution in a modern communication network, based on wavelength division multiplexing. Any imperfect functionality in such devices causes non-ideal optical power transfer to the converted data pulses. All imperfections during the preparation and operation of the wavelength converters can be addressed to the waveguide inhomogeneity which distorts data pulses to be converted. This paper reports different waveguide inhomogeneity effects on the pulse distortion while using periodically poled lithium niobate waveguide as wavelength converters. Three types of
χ
(
2
)
-based nonlinear optical processes, including second harmonic generation, difference frequency generation, and cascaded second harmonic generation/difference frequency generation are numerically studied to show that any constant, linear, and quadratic waveguide inhomogeneity causes short pulse (down to 1 ns) distortion in such wavelength converters. In addition, it is shown that the reconstruction of
sech
2
-shaped generated pulses is possible, when suitable upside-down quadratic variations of obtained inhomogeneity are deliberately induced in the waveguide. Notably, for pulsed second harmonic generation, the generated pulse can be compressed using an upside-down quadratic phase mismatch.</abstract><cop>London</cop><pub>Nature Publishing Group UK</pub><pmid>36707531</pmid><doi>10.1038/s41598-023-28799-3</doi><tpages>1</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | 639/766/1130 639/766/1130/2799 639/766/25 Communication Communications networks Electric fields Humanities and Social Sciences Investigations Lithium multidisciplinary Optics Propagation Science Science (multidisciplinary) Wave division multiplexing Wavelength |
| title | Pulse distortion caused by waveguide inhomogeneity in nonlinear optical wavelength converters |
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