High Peak Power, Passively Q-switched Microlaser for Ignition of Engines
The compact (electric spark plug size), diode-pumped, passively Q-switched Nd:YAG/Cr 4+ :YAG microlaser was developed for ignition of engines. Output energy of 2.7 mJ per pulse and 11.7 mJ per four-pulse train with a pulsewidth of 600 ps and an M 2 value of 1.2 were obtained at a pump duration of 50...
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| Veröffentlicht in: | IEEE journal of quantum electronics 2010-02, Vol.46 (2), p.277-284 |
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| creator | Tsunekane, M. Inohara, T. Ando, A. Kido, N. Kanehara, K. Taira, T. |
| description | The compact (electric spark plug size), diode-pumped, passively Q-switched Nd:YAG/Cr 4+ :YAG microlaser was developed for ignition of engines. Output energy of 2.7 mJ per pulse and 11.7 mJ per four-pulse train with a pulsewidth of 600 ps and an M 2 value of 1.2 were obtained at a pump duration of 500 ¿s. The optical-to-optical conversion efficiency was 19%. Brightness of the microlaser was calculated as 0.3 PW/ sr-cm 2 and optical power intensity was calculated as 5 TW/cm 2 at the focal point of ignition. The enhanced combustion by the microlaser ignition was successfully demonstrated in a constant-volume chamber at room temperature and atmospheric pressure. The cross section area of a flame kernel generated by laser ignition is 3 times larger than that by a conventional spark plug at 6 ms after ignition in a stoichiometric mixture (A/F 15.2) of C 3 H 8 /air, even though ignition energy of the laser is 1/3 of that of the spark plug. Hundred percent ignition was successfully demonstrated in a lean mixture of A/F 17.2 by laser ignition, where electric spark plug ignition failed. |
| doi_str_mv | 10.1109/JQE.2009.2030967 |
| format | Article |
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Output energy of 2.7 mJ per pulse and 11.7 mJ per four-pulse train with a pulsewidth of 600 ps and an M 2 value of 1.2 were obtained at a pump duration of 500 ¿s. The optical-to-optical conversion efficiency was 19%. Brightness of the microlaser was calculated as 0.3 PW/ sr-cm 2 and optical power intensity was calculated as 5 TW/cm 2 at the focal point of ignition. The enhanced combustion by the microlaser ignition was successfully demonstrated in a constant-volume chamber at room temperature and atmospheric pressure. The cross section area of a flame kernel generated by laser ignition is 3 times larger than that by a conventional spark plug at 6 ms after ignition in a stoichiometric mixture (A/F 15.2) of C 3 H 8 /air, even though ignition energy of the laser is 1/3 of that of the spark plug. Hundred percent ignition was successfully demonstrated in a lean mixture of A/F 17.2 by laser ignition, where electric spark plug ignition failed.</description><identifier>ISSN: 0018-9197</identifier><identifier>EISSN: 1558-1713</identifier><identifier>DOI: 10.1109/JQE.2009.2030967</identifier><identifier>CODEN: IEJQA7</identifier><language>eng</language><publisher>New York, NY: IEEE</publisher><subject>Brightness ; Chromium ; Cr:YAG ; diode pump ; Diode-pumped lasers ; Diodes ; Doped-insulator lasers and other solid state lasers ; Electric power generation ; Electric sparks ; Engines ; Exact sciences and technology ; Fundamental areas of phenomenology (including applications) ; Ignition ; Laser optical systems: design and operation ; Lasers ; Mathematical analysis ; Microcavity and microdisk lasers ; Microlasers ; Nd:YAG ; Optical pulses ; Optical pumping ; Optics ; passively Q-switched lasers ; Physics ; Plugs ; Q-switching ; solid-state lasers ; Space vector pulse width modulation ; Spark plugs ; Sparks</subject><ispartof>IEEE journal of quantum electronics, 2010-02, Vol.46 (2), p.277-284</ispartof><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c423t-73c02519ea1b2e96fe184eaddbdb5ada46fc5406c01dabb067c672fd3a9fcbdb3</citedby><cites>FETCH-LOGICAL-c423t-73c02519ea1b2e96fe184eaddbdb5ada46fc5406c01dabb067c672fd3a9fcbdb3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/5401116$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,776,780,792,27901,27902,54733</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/5401116$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=22492725$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Tsunekane, M.</creatorcontrib><creatorcontrib>Inohara, T.</creatorcontrib><creatorcontrib>Ando, A.</creatorcontrib><creatorcontrib>Kido, N.</creatorcontrib><creatorcontrib>Kanehara, K.</creatorcontrib><creatorcontrib>Taira, T.</creatorcontrib><title>High Peak Power, Passively Q-switched Microlaser for Ignition of Engines</title><title>IEEE journal of quantum electronics</title><addtitle>JQE</addtitle><description>The compact (electric spark plug size), diode-pumped, passively Q-switched Nd:YAG/Cr 4+ :YAG microlaser was developed for ignition of engines. Output energy of 2.7 mJ per pulse and 11.7 mJ per four-pulse train with a pulsewidth of 600 ps and an M 2 value of 1.2 were obtained at a pump duration of 500 ¿s. The optical-to-optical conversion efficiency was 19%. Brightness of the microlaser was calculated as 0.3 PW/ sr-cm 2 and optical power intensity was calculated as 5 TW/cm 2 at the focal point of ignition. The enhanced combustion by the microlaser ignition was successfully demonstrated in a constant-volume chamber at room temperature and atmospheric pressure. The cross section area of a flame kernel generated by laser ignition is 3 times larger than that by a conventional spark plug at 6 ms after ignition in a stoichiometric mixture (A/F 15.2) of C 3 H 8 /air, even though ignition energy of the laser is 1/3 of that of the spark plug. Hundred percent ignition was successfully demonstrated in a lean mixture of A/F 17.2 by laser ignition, where electric spark plug ignition failed.</description><subject>Brightness</subject><subject>Chromium</subject><subject>Cr:YAG</subject><subject>diode pump</subject><subject>Diode-pumped lasers</subject><subject>Diodes</subject><subject>Doped-insulator lasers and other solid state lasers</subject><subject>Electric power generation</subject><subject>Electric sparks</subject><subject>Engines</subject><subject>Exact sciences and technology</subject><subject>Fundamental areas of phenomenology (including applications)</subject><subject>Ignition</subject><subject>Laser optical systems: design and operation</subject><subject>Lasers</subject><subject>Mathematical analysis</subject><subject>Microcavity and microdisk lasers</subject><subject>Microlasers</subject><subject>Nd:YAG</subject><subject>Optical pulses</subject><subject>Optical pumping</subject><subject>Optics</subject><subject>passively Q-switched lasers</subject><subject>Physics</subject><subject>Plugs</subject><subject>Q-switching</subject><subject>solid-state lasers</subject><subject>Space vector pulse width modulation</subject><subject>Spark plugs</subject><subject>Sparks</subject><issn>0018-9197</issn><issn>1558-1713</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNqFkEFLAzEQhYMoWKt3wUsu4sWtmWR3szmKVFup2IKel2x20kbX3Zq0lv57U1q8eplhmO89eI-QS2ADAKbunmfDAWdMxSGYyuUR6UGWFQlIEMekxxgUiQIlT8lZCB_xTNOC9cho5OYLOkX9SafdBv0tneoQ3A82WzpLwsatzAJr-uKM7xod0FPbeTqet27lupZ2lg7buWsxnJMTq5uAF4fdJ--Pw7eHUTJ5fRo_3E8Sk3KxSqQwjGegUEPFUeUWoUhR13VVV5mudZpbk6UsNwxqXVUslyaX3NZCK2siI_rkZu-79N33GsOq_HLBYNPoFrt1KAuZsYxzJf4lZSrygoEoIsn2ZAwZgkdbLr370n5bAit37Zax3XLXbnloN0quD-Y6GN1Yr1vjwp-O81RxybPIXe05h4h_75gQAHLxC5XSgqw</recordid><startdate>20100201</startdate><enddate>20100201</enddate><creator>Tsunekane, M.</creator><creator>Inohara, T.</creator><creator>Ando, A.</creator><creator>Kido, N.</creator><creator>Kanehara, K.</creator><creator>Taira, T.</creator><general>IEEE</general><general>Institute of Electrical and Electronics Engineers</general><scope>97E</scope><scope>RIA</scope><scope>RIE</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7U5</scope><scope>8FD</scope><scope>F28</scope><scope>FR3</scope><scope>L7M</scope></search><sort><creationdate>20100201</creationdate><title>High Peak Power, Passively Q-switched Microlaser for Ignition of Engines</title><author>Tsunekane, M. ; Inohara, T. ; Ando, A. ; Kido, N. ; Kanehara, K. ; Taira, T.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c423t-73c02519ea1b2e96fe184eaddbdb5ada46fc5406c01dabb067c672fd3a9fcbdb3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><topic>Brightness</topic><topic>Chromium</topic><topic>Cr:YAG</topic><topic>diode pump</topic><topic>Diode-pumped lasers</topic><topic>Diodes</topic><topic>Doped-insulator lasers and other solid state lasers</topic><topic>Electric power generation</topic><topic>Electric sparks</topic><topic>Engines</topic><topic>Exact sciences and technology</topic><topic>Fundamental areas of phenomenology (including applications)</topic><topic>Ignition</topic><topic>Laser optical systems: design and operation</topic><topic>Lasers</topic><topic>Mathematical analysis</topic><topic>Microcavity and microdisk lasers</topic><topic>Microlasers</topic><topic>Nd:YAG</topic><topic>Optical pulses</topic><topic>Optical pumping</topic><topic>Optics</topic><topic>passively Q-switched lasers</topic><topic>Physics</topic><topic>Plugs</topic><topic>Q-switching</topic><topic>solid-state lasers</topic><topic>Space vector pulse width modulation</topic><topic>Spark plugs</topic><topic>Sparks</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Tsunekane, M.</creatorcontrib><creatorcontrib>Inohara, T.</creatorcontrib><creatorcontrib>Ando, A.</creatorcontrib><creatorcontrib>Kido, N.</creatorcontrib><creatorcontrib>Kanehara, K.</creatorcontrib><creatorcontrib>Taira, T.</creatorcontrib><collection>IEEE All-Society Periodicals Package (ASPP) 2005-present</collection><collection>IEEE All-Society Periodicals Package (ASPP) 1998-Present</collection><collection>IEEE Electronic Library (IEL)</collection><collection>Pascal-Francis</collection><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>Advanced Technologies Database with Aerospace</collection><jtitle>IEEE journal of quantum electronics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Tsunekane, M.</au><au>Inohara, T.</au><au>Ando, A.</au><au>Kido, N.</au><au>Kanehara, K.</au><au>Taira, T.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>High Peak Power, Passively Q-switched Microlaser for Ignition of Engines</atitle><jtitle>IEEE journal of quantum electronics</jtitle><stitle>JQE</stitle><date>2010-02-01</date><risdate>2010</risdate><volume>46</volume><issue>2</issue><spage>277</spage><epage>284</epage><pages>277-284</pages><issn>0018-9197</issn><eissn>1558-1713</eissn><coden>IEJQA7</coden><abstract>The compact (electric spark plug size), diode-pumped, passively Q-switched Nd:YAG/Cr 4+ :YAG microlaser was developed for ignition of engines. Output energy of 2.7 mJ per pulse and 11.7 mJ per four-pulse train with a pulsewidth of 600 ps and an M 2 value of 1.2 were obtained at a pump duration of 500 ¿s. The optical-to-optical conversion efficiency was 19%. Brightness of the microlaser was calculated as 0.3 PW/ sr-cm 2 and optical power intensity was calculated as 5 TW/cm 2 at the focal point of ignition. The enhanced combustion by the microlaser ignition was successfully demonstrated in a constant-volume chamber at room temperature and atmospheric pressure. The cross section area of a flame kernel generated by laser ignition is 3 times larger than that by a conventional spark plug at 6 ms after ignition in a stoichiometric mixture (A/F 15.2) of C 3 H 8 /air, even though ignition energy of the laser is 1/3 of that of the spark plug. Hundred percent ignition was successfully demonstrated in a lean mixture of A/F 17.2 by laser ignition, where electric spark plug ignition failed.</abstract><cop>New York, NY</cop><pub>IEEE</pub><doi>10.1109/JQE.2009.2030967</doi><tpages>8</tpages></addata></record> |
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| identifier | ISSN: 0018-9197 |
| ispartof | IEEE journal of quantum electronics, 2010-02, Vol.46 (2), p.277-284 |
| issn | 0018-9197 1558-1713 |
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| source | IEEE Electronic Library (IEL) |
| subjects | Brightness Chromium Cr:YAG diode pump Diode-pumped lasers Diodes Doped-insulator lasers and other solid state lasers Electric power generation Electric sparks Engines Exact sciences and technology Fundamental areas of phenomenology (including applications) Ignition Laser optical systems: design and operation Lasers Mathematical analysis Microcavity and microdisk lasers Microlasers Nd:YAG Optical pulses Optical pumping Optics passively Q-switched lasers Physics Plugs Q-switching solid-state lasers Space vector pulse width modulation Spark plugs Sparks |
| title | High Peak Power, Passively Q-switched Microlaser for Ignition of Engines |
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