Spot-shadowing deployment for mitigating damage-growth of optics in high-power lasers based on a programmable spatial beam-shaping system
•A general method for spot shadowing deployment is demonstrated in detail.•Spot-shadowing technique can attenuate the local fluence to mitigate damage growth.•Beam spatial profile and shadowing effect must be balanced. Damage growth in optical components is a bottleneck problem of large solid state...
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| Veröffentlicht in: | Optics and laser technology 2018-12, Vol.108, p.602-608 |
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| container_title | Optics and laser technology |
| container_volume | 108 |
| creator | Zheng, YinBo Ba, RongSheng Zhou, XinDa Li, Jie Ding, Lei Xu, HongLei Na, Jin Li, YaJun Yuan, Jing Ren, Huan Tang, XiaoDong Chai, Liqun |
| description | •A general method for spot shadowing deployment is demonstrated in detail.•Spot-shadowing technique can attenuate the local fluence to mitigate damage growth.•Beam spatial profile and shadowing effect must be balanced.
Damage growth in optical components is a bottleneck problem of large solid state laser, which limits the system operating energy, interrupts the use and increases the maintenance cost dramatically. A spot-shadowing technique aimed to obscure damage pits in downstream optics in high-power laser is investigated in this work, whose goal is decreasing local fluence to mitigate damage growth upon subsequent laser shots exposure by shadowing small, isolated flaws on downstream optical components. The method to determine the quantity, geometrical shape, size, and spatial location of blockers is discussed in detail, which is applicable to other large solid lasers in principle. We also find that the local fluence around flaw sites decreases dramatically from ∼5.87 J/cm2 to ∼1.10 J/cm2 (far below laser-induced damage growth threshold ∼4.50 J/cm2) after spot-shadowing is deployed, which proves the feasibility of spot-shadowing for mitigating damage growth. |
| doi_str_mv | 10.1016/j.optlastec.2018.07.047 |
| format | Article |
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Damage growth in optical components is a bottleneck problem of large solid state laser, which limits the system operating energy, interrupts the use and increases the maintenance cost dramatically. A spot-shadowing technique aimed to obscure damage pits in downstream optics in high-power laser is investigated in this work, whose goal is decreasing local fluence to mitigate damage growth upon subsequent laser shots exposure by shadowing small, isolated flaws on downstream optical components. The method to determine the quantity, geometrical shape, size, and spatial location of blockers is discussed in detail, which is applicable to other large solid lasers in principle. We also find that the local fluence around flaw sites decreases dramatically from ∼5.87 J/cm2 to ∼1.10 J/cm2 (far below laser-induced damage growth threshold ∼4.50 J/cm2) after spot-shadowing is deployed, which proves the feasibility of spot-shadowing for mitigating damage growth.</description><identifier>ISSN: 0030-3992</identifier><identifier>EISSN: 1879-2545</identifier><identifier>DOI: 10.1016/j.optlastec.2018.07.047</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>Aperture ; Damage growth ; Fluence ; Large solid-state laser ; Laser beams ; Laser damage ; Laser-induced damage growth threshold ; Maintenance costs ; Mitigate damage growth ; Optical components ; Optics ; Solid state lasers ; Solid state physics ; Spot-shadowing</subject><ispartof>Optics and laser technology, 2018-12, Vol.108, p.602-608</ispartof><rights>2018</rights><rights>Copyright Elsevier BV Dec 2018</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c343t-ac8df2bb4b259d595e2c532cab257f9cb463fa84689a46c061f0f79e943cb9583</citedby><cites>FETCH-LOGICAL-c343t-ac8df2bb4b259d595e2c532cab257f9cb463fa84689a46c061f0f79e943cb9583</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.optlastec.2018.07.047$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3548,27922,27923,45993</link.rule.ids></links><search><creatorcontrib>Zheng, YinBo</creatorcontrib><creatorcontrib>Ba, RongSheng</creatorcontrib><creatorcontrib>Zhou, XinDa</creatorcontrib><creatorcontrib>Li, Jie</creatorcontrib><creatorcontrib>Ding, Lei</creatorcontrib><creatorcontrib>Xu, HongLei</creatorcontrib><creatorcontrib>Na, Jin</creatorcontrib><creatorcontrib>Li, YaJun</creatorcontrib><creatorcontrib>Yuan, Jing</creatorcontrib><creatorcontrib>Ren, Huan</creatorcontrib><creatorcontrib>Tang, XiaoDong</creatorcontrib><creatorcontrib>Chai, Liqun</creatorcontrib><title>Spot-shadowing deployment for mitigating damage-growth of optics in high-power lasers based on a programmable spatial beam-shaping system</title><title>Optics and laser technology</title><description>•A general method for spot shadowing deployment is demonstrated in detail.•Spot-shadowing technique can attenuate the local fluence to mitigate damage growth.•Beam spatial profile and shadowing effect must be balanced.
Damage growth in optical components is a bottleneck problem of large solid state laser, which limits the system operating energy, interrupts the use and increases the maintenance cost dramatically. A spot-shadowing technique aimed to obscure damage pits in downstream optics in high-power laser is investigated in this work, whose goal is decreasing local fluence to mitigate damage growth upon subsequent laser shots exposure by shadowing small, isolated flaws on downstream optical components. The method to determine the quantity, geometrical shape, size, and spatial location of blockers is discussed in detail, which is applicable to other large solid lasers in principle. We also find that the local fluence around flaw sites decreases dramatically from ∼5.87 J/cm2 to ∼1.10 J/cm2 (far below laser-induced damage growth threshold ∼4.50 J/cm2) after spot-shadowing is deployed, which proves the feasibility of spot-shadowing for mitigating damage growth.</description><subject>Aperture</subject><subject>Damage growth</subject><subject>Fluence</subject><subject>Large solid-state laser</subject><subject>Laser beams</subject><subject>Laser damage</subject><subject>Laser-induced damage growth threshold</subject><subject>Maintenance costs</subject><subject>Mitigate damage growth</subject><subject>Optical components</subject><subject>Optics</subject><subject>Solid state lasers</subject><subject>Solid state physics</subject><subject>Spot-shadowing</subject><issn>0030-3992</issn><issn>1879-2545</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNqFUM1q3DAQFiWFbrZ5hghytitZkm0dlyVtCoEc2p6FLI-8WmzLlbRd9hH61pW7IdechmG-v_kQuqekpITWX46lX9KoYwJTVoS2JWlKwpsPaEPbRhaV4OIGbQhhpGBSVp_QbYxHQgivBdugvz8Wn4p40L0_u3nAPSyjv0wwJ2x9wJNLbtDp_0VPeoBiCP6cDthbnG2didjN-OCGQ7H4MwScg0CIuMujx37GGi_BD0FPk-5GwHHJYnrEHehpdV1W5XjJ4afP6KPVY4S717lFv74-_tw_Fc8v377vd8-FYZylQpu2t1XX8a4SshdSQGUEq4zOe2Ol6XjNrG553UrNa0NqaoltJEjOTCdFy7bo4aqbg_0-QUzq6E9hzpaqorRumRSizqjmijLBxxjAqiW4SYeLokStvaujeutdrb0r0qjce2burkzIT_xxEFQ0DmYDvQtgkuq9e1fjH1P-k-4</recordid><startdate>201812</startdate><enddate>201812</enddate><creator>Zheng, YinBo</creator><creator>Ba, RongSheng</creator><creator>Zhou, XinDa</creator><creator>Li, Jie</creator><creator>Ding, Lei</creator><creator>Xu, HongLei</creator><creator>Na, Jin</creator><creator>Li, YaJun</creator><creator>Yuan, Jing</creator><creator>Ren, Huan</creator><creator>Tang, XiaoDong</creator><creator>Chai, Liqun</creator><general>Elsevier Ltd</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7U5</scope><scope>8FD</scope><scope>F28</scope><scope>FR3</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>201812</creationdate><title>Spot-shadowing deployment for mitigating damage-growth of optics in high-power lasers based on a programmable spatial beam-shaping system</title><author>Zheng, YinBo ; Ba, RongSheng ; Zhou, XinDa ; Li, Jie ; Ding, Lei ; Xu, HongLei ; Na, Jin ; Li, YaJun ; Yuan, Jing ; Ren, Huan ; Tang, XiaoDong ; Chai, Liqun</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c343t-ac8df2bb4b259d595e2c532cab257f9cb463fa84689a46c061f0f79e943cb9583</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Aperture</topic><topic>Damage growth</topic><topic>Fluence</topic><topic>Large solid-state laser</topic><topic>Laser beams</topic><topic>Laser damage</topic><topic>Laser-induced damage growth threshold</topic><topic>Maintenance costs</topic><topic>Mitigate damage growth</topic><topic>Optical components</topic><topic>Optics</topic><topic>Solid state lasers</topic><topic>Solid state physics</topic><topic>Spot-shadowing</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zheng, YinBo</creatorcontrib><creatorcontrib>Ba, RongSheng</creatorcontrib><creatorcontrib>Zhou, XinDa</creatorcontrib><creatorcontrib>Li, Jie</creatorcontrib><creatorcontrib>Ding, Lei</creatorcontrib><creatorcontrib>Xu, HongLei</creatorcontrib><creatorcontrib>Na, Jin</creatorcontrib><creatorcontrib>Li, YaJun</creatorcontrib><creatorcontrib>Yuan, Jing</creatorcontrib><creatorcontrib>Ren, Huan</creatorcontrib><creatorcontrib>Tang, XiaoDong</creatorcontrib><creatorcontrib>Chai, Liqun</creatorcontrib><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Optics and laser technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zheng, YinBo</au><au>Ba, RongSheng</au><au>Zhou, XinDa</au><au>Li, Jie</au><au>Ding, Lei</au><au>Xu, HongLei</au><au>Na, Jin</au><au>Li, YaJun</au><au>Yuan, Jing</au><au>Ren, Huan</au><au>Tang, XiaoDong</au><au>Chai, Liqun</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Spot-shadowing deployment for mitigating damage-growth of optics in high-power lasers based on a programmable spatial beam-shaping system</atitle><jtitle>Optics and laser technology</jtitle><date>2018-12</date><risdate>2018</risdate><volume>108</volume><spage>602</spage><epage>608</epage><pages>602-608</pages><issn>0030-3992</issn><eissn>1879-2545</eissn><abstract>•A general method for spot shadowing deployment is demonstrated in detail.•Spot-shadowing technique can attenuate the local fluence to mitigate damage growth.•Beam spatial profile and shadowing effect must be balanced.
Damage growth in optical components is a bottleneck problem of large solid state laser, which limits the system operating energy, interrupts the use and increases the maintenance cost dramatically. A spot-shadowing technique aimed to obscure damage pits in downstream optics in high-power laser is investigated in this work, whose goal is decreasing local fluence to mitigate damage growth upon subsequent laser shots exposure by shadowing small, isolated flaws on downstream optical components. The method to determine the quantity, geometrical shape, size, and spatial location of blockers is discussed in detail, which is applicable to other large solid lasers in principle. We also find that the local fluence around flaw sites decreases dramatically from ∼5.87 J/cm2 to ∼1.10 J/cm2 (far below laser-induced damage growth threshold ∼4.50 J/cm2) after spot-shadowing is deployed, which proves the feasibility of spot-shadowing for mitigating damage growth.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.optlastec.2018.07.047</doi><tpages>7</tpages></addata></record> |
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| source | ScienceDirect Journals (5 years ago - present) |
| subjects | Aperture Damage growth Fluence Large solid-state laser Laser beams Laser damage Laser-induced damage growth threshold Maintenance costs Mitigate damage growth Optical components Optics Solid state lasers Solid state physics Spot-shadowing |
| title | Spot-shadowing deployment for mitigating damage-growth of optics in high-power lasers based on a programmable spatial beam-shaping system |
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