Sharp focusing of superpositions of Hermite-Gaussian modes locked in fractionally degenerate cavity
We investigate, experimentally and numerically, sharp focusing of superpositions of Hermite-Gaussian modes obtained at transverse mode locking in an end-pumped laser with a fractionally degenerate cavity. Being focused with a lens, these beams create quasi-waists that are shorter and narrower as com...
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| Veröffentlicht in: | Laser physics 2019-11, Vol.29 (11), p.115003 |
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| container_issue | 11 |
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| container_title | Laser physics |
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| creator | Gorbunkov, M V Kostryukov, P V Tunkin, V G |
| description | We investigate, experimentally and numerically, sharp focusing of superpositions of Hermite-Gaussian modes obtained at transverse mode locking in an end-pumped laser with a fractionally degenerate cavity. Being focused with a lens, these beams create quasi-waists that are shorter and narrower as compared to the waist of a zero-order Gaussian mode. Comparison with the case of Laguerre-Gaussian superpositions showed that both mode families demonstrate similar sharp-focusing behavior in terms of the longitudinal and transverse scales, but the superpositions of Hermite-Gaussian modes have substantially non-zero on-axis intensity between the quasi-waists. |
| doi_str_mv | 10.1088/1555-6611/ab4649 |
| format | Article |
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Being focused with a lens, these beams create quasi-waists that are shorter and narrower as compared to the waist of a zero-order Gaussian mode. Comparison with the case of Laguerre-Gaussian superpositions showed that both mode families demonstrate similar sharp-focusing behavior in terms of the longitudinal and transverse scales, but the superpositions of Hermite-Gaussian modes have substantially non-zero on-axis intensity between the quasi-waists.</description><identifier>ISSN: 1054-660X</identifier><identifier>EISSN: 1555-6611</identifier><identifier>DOI: 10.1088/1555-6611/ab4649</identifier><identifier>CODEN: LAPHEJ</identifier><language>eng</language><publisher>IOP Publishing</publisher><subject>degenerate cavity configurations ; end-pumped lasers ; sharp focusing ; transverse mode locking</subject><ispartof>Laser physics, 2019-11, Vol.29 (11), p.115003</ispartof><rights>2019 Astro Ltd</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c312t-1b12c547056e69a503ba39c6c8dbb26a845a290c9e83442cd1bf6ded3b2d57253</citedby><cites>FETCH-LOGICAL-c312t-1b12c547056e69a503ba39c6c8dbb26a845a290c9e83442cd1bf6ded3b2d57253</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://iopscience.iop.org/article/10.1088/1555-6611/ab4649/pdf$$EPDF$$P50$$Giop$$H</linktopdf><link.rule.ids>314,776,780,27901,27902,53821,53868</link.rule.ids></links><search><creatorcontrib>Gorbunkov, M V</creatorcontrib><creatorcontrib>Kostryukov, P V</creatorcontrib><creatorcontrib>Tunkin, V G</creatorcontrib><title>Sharp focusing of superpositions of Hermite-Gaussian modes locked in fractionally degenerate cavity</title><title>Laser physics</title><addtitle>LP</addtitle><addtitle>Laser Phys</addtitle><description>We investigate, experimentally and numerically, sharp focusing of superpositions of Hermite-Gaussian modes obtained at transverse mode locking in an end-pumped laser with a fractionally degenerate cavity. Being focused with a lens, these beams create quasi-waists that are shorter and narrower as compared to the waist of a zero-order Gaussian mode. Comparison with the case of Laguerre-Gaussian superpositions showed that both mode families demonstrate similar sharp-focusing behavior in terms of the longitudinal and transverse scales, but the superpositions of Hermite-Gaussian modes have substantially non-zero on-axis intensity between the quasi-waists.</description><subject>degenerate cavity configurations</subject><subject>end-pumped lasers</subject><subject>sharp focusing</subject><subject>transverse mode locking</subject><issn>1054-660X</issn><issn>1555-6611</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNp9kEtLw0AURgdRsFb3Lmfnxth5N1lK0VYouFDB3TDPOjXNhJlE6L83IeJKXN2Py_ku3APANUZ3GJXlAnPOCyEwXijNBKtOwOx3dTpkxNmQ0fs5uMh5jxBjDOEZMC8fKrXQR9Pn0Oxg9DD3rUttzKELscnjZuPSIXSuWKs-56AaeIjWZVhH8-ksDA30SZmRVnV9hNbtXOOS6hw06it0x0tw5lWd3dXPnIO3x4fX1abYPq-fVvfbwlBMugJrTAxnS8SFE5XiiGpFKyNMabUmQpWMK1IhU7mSMkaMxdoL6yzVxPIl4XQO0HTXpJhzcl62KRxUOkqM5ChJjkbkaEROkobK7VQJsZX72KfhhfwffvMHXreSVHKgMOYIUdlaT78BREt2-w</recordid><startdate>20191101</startdate><enddate>20191101</enddate><creator>Gorbunkov, M V</creator><creator>Kostryukov, P V</creator><creator>Tunkin, V G</creator><general>IOP Publishing</general><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20191101</creationdate><title>Sharp focusing of superpositions of Hermite-Gaussian modes locked in fractionally degenerate cavity</title><author>Gorbunkov, M V ; Kostryukov, P V ; Tunkin, V G</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c312t-1b12c547056e69a503ba39c6c8dbb26a845a290c9e83442cd1bf6ded3b2d57253</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>degenerate cavity configurations</topic><topic>end-pumped lasers</topic><topic>sharp focusing</topic><topic>transverse mode locking</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Gorbunkov, M V</creatorcontrib><creatorcontrib>Kostryukov, P V</creatorcontrib><creatorcontrib>Tunkin, V G</creatorcontrib><collection>CrossRef</collection><jtitle>Laser physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Gorbunkov, M V</au><au>Kostryukov, P V</au><au>Tunkin, V G</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Sharp focusing of superpositions of Hermite-Gaussian modes locked in fractionally degenerate cavity</atitle><jtitle>Laser physics</jtitle><stitle>LP</stitle><addtitle>Laser Phys</addtitle><date>2019-11-01</date><risdate>2019</risdate><volume>29</volume><issue>11</issue><spage>115003</spage><pages>115003-</pages><issn>1054-660X</issn><eissn>1555-6611</eissn><coden>LAPHEJ</coden><abstract>We investigate, experimentally and numerically, sharp focusing of superpositions of Hermite-Gaussian modes obtained at transverse mode locking in an end-pumped laser with a fractionally degenerate cavity. Being focused with a lens, these beams create quasi-waists that are shorter and narrower as compared to the waist of a zero-order Gaussian mode. Comparison with the case of Laguerre-Gaussian superpositions showed that both mode families demonstrate similar sharp-focusing behavior in terms of the longitudinal and transverse scales, but the superpositions of Hermite-Gaussian modes have substantially non-zero on-axis intensity between the quasi-waists.</abstract><pub>IOP Publishing</pub><doi>10.1088/1555-6611/ab4649</doi><tpages>6</tpages></addata></record> |
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| ispartof | Laser physics, 2019-11, Vol.29 (11), p.115003 |
| issn | 1054-660X 1555-6611 |
| language | eng |
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| source | IOP Publishing Journals; Institute of Physics (IOP) Journals - HEAL-Link |
| subjects | degenerate cavity configurations end-pumped lasers sharp focusing transverse mode locking |
| title | Sharp focusing of superpositions of Hermite-Gaussian modes locked in fractionally degenerate cavity |
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