H. Kan, H. Miyajima, S. Furuta, Hideki Suzuki, T. Uchiyama, S. Oishi, T. Kanzaki, T. Hiruma
{"title":"大功率激光二极管及其应用","authors":"H. Kan, H. Miyajima, S. Furuta, Hideki Suzuki, T. Uchiyama, S. Oishi, T. Kanzaki, T. Hiruma","doi":"10.1117/12.497972","DOIUrl":null,"url":null,"abstract":"In general, an electrical to optical power conversion efficiency for a high power LD ranges from 40 to 50%. Therefore, 50 to 60% of the input electricity is transformed into heat. The generated heat degrades the LD's optical characteristics and their lifetimes dramatically. We must not only suppress the heat generation but also remove the heat effectively from the LDs. Several years ago we proposed \"FUNRYU\", a water cooled heat sink. The sink has great advantages, due to its simpler structure than a micro channel cooler, in terms of cost, productivity, and water pressure.","PeriodicalId":159280,"journal":{"name":"International Congress on Laser Advanced Materials Processing","volume":"4831 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2003-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"High power laser diode and application\",\"authors\":\"H. Kan, H. Miyajima, S. Furuta, Hideki Suzuki, T. Uchiyama, S. Oishi, T. Kanzaki, T. Hiruma\",\"doi\":\"10.1117/12.497972\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In general, an electrical to optical power conversion efficiency for a high power LD ranges from 40 to 50%. Therefore, 50 to 60% of the input electricity is transformed into heat. The generated heat degrades the LD's optical characteristics and their lifetimes dramatically. We must not only suppress the heat generation but also remove the heat effectively from the LDs. Several years ago we proposed \\\"FUNRYU\\\", a water cooled heat sink. The sink has great advantages, due to its simpler structure than a micro channel cooler, in terms of cost, productivity, and water pressure.\",\"PeriodicalId\":159280,\"journal\":{\"name\":\"International Congress on Laser Advanced Materials Processing\",\"volume\":\"4831 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2003-03-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International Congress on Laser Advanced Materials Processing\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1117/12.497972\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Congress on Laser Advanced Materials Processing","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1117/12.497972","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
In general, an electrical to optical power conversion efficiency for a high power LD ranges from 40 to 50%. Therefore, 50 to 60% of the input electricity is transformed into heat. The generated heat degrades the LD's optical characteristics and their lifetimes dramatically. We must not only suppress the heat generation but also remove the heat effectively from the LDs. Several years ago we proposed "FUNRYU", a water cooled heat sink. The sink has great advantages, due to its simpler structure than a micro channel cooler, in terms of cost, productivity, and water pressure.
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