{"title":"利用高效ISHG直接获得巨大的准单皮秒脉冲","authors":"Feng-tie Wu","doi":"10.1117/12.380926","DOIUrl":null,"url":null,"abstract":"Intracavity frequency doubling with (beta) -BaB2O4 (BBO) crystal in a passively mode-locked unstable confocal resonator Nd:YAP (Nd:YALO3) pulsed laser is described. Without any amplification and pulse selection, a powerful quasi-single psec pulse at 0.54 micrometer with an energy greater than 20 mJ and power density 5 GW/cm2 was obtained by totally passive mode locking for the first time. Energy conversion efficiency 81% from 1.08 to 0.54 micrometer was achieved. The technique of intracavity second harmonic generation (ISHG) leads to stable output energy of SHG with an energy stability of 95.96%. This has a higher stability than that of fundamental wave with an energy stability of 92.78%.","PeriodicalId":375593,"journal":{"name":"Advanced High-Power Lasers and Applications","volume":"116 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2000-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Directly obtaining a giant quasi-single picosecond pulse by efficient ISHG\",\"authors\":\"Feng-tie Wu\",\"doi\":\"10.1117/12.380926\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Intracavity frequency doubling with (beta) -BaB2O4 (BBO) crystal in a passively mode-locked unstable confocal resonator Nd:YAP (Nd:YALO3) pulsed laser is described. Without any amplification and pulse selection, a powerful quasi-single psec pulse at 0.54 micrometer with an energy greater than 20 mJ and power density 5 GW/cm2 was obtained by totally passive mode locking for the first time. Energy conversion efficiency 81% from 1.08 to 0.54 micrometer was achieved. The technique of intracavity second harmonic generation (ISHG) leads to stable output energy of SHG with an energy stability of 95.96%. This has a higher stability than that of fundamental wave with an energy stability of 92.78%.\",\"PeriodicalId\":375593,\"journal\":{\"name\":\"Advanced High-Power Lasers and Applications\",\"volume\":\"116 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2000-04-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Advanced High-Power Lasers and Applications\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1117/12.380926\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advanced High-Power Lasers and Applications","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1117/12.380926","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Directly obtaining a giant quasi-single picosecond pulse by efficient ISHG
Intracavity frequency doubling with (beta) -BaB2O4 (BBO) crystal in a passively mode-locked unstable confocal resonator Nd:YAP (Nd:YALO3) pulsed laser is described. Without any amplification and pulse selection, a powerful quasi-single psec pulse at 0.54 micrometer with an energy greater than 20 mJ and power density 5 GW/cm2 was obtained by totally passive mode locking for the first time. Energy conversion efficiency 81% from 1.08 to 0.54 micrometer was achieved. The technique of intracavity second harmonic generation (ISHG) leads to stable output energy of SHG with an energy stability of 95.96%. This has a higher stability than that of fundamental wave with an energy stability of 92.78%.