{"title":"LD双侧泵浦Nd:YVO4矩形晶体的热分析","authors":"Wen Chen, P. Shi, Z. Hua, Long Li, Ansheng Gan","doi":"10.1109/SOPO.2009.5230310","DOIUrl":null,"url":null,"abstract":"Based on analytical theory, distributions of temperature field and thermal distortion field in a rectangular Nd:YVO4 crystal double-side-pumped by LD are investigated. Through the analysis of working characteristics of Nd:YVO4 crystal, a thermal model that matches actual situations of Nd:YVO4 crystal is established. General expressions of temperature field and thermal distortion field in Nd:YVO4 crystal are obtained. And two methods of effectively reducing thermal distortion in Nd:YVO4 crystal are put forward. Results show that a maximum temperature rise of 362.2°C and a maximum thermal distortion of 5.55 μm are obtained in Nd:YVO4 crystal when the output power of the two laser diodes used to pump the Nd:YVO4 crystal are both 30 W. When the off- center distance is 0.6mm, the maximum thermal distortion can be reduced by37.7%; when the thickness of the crystal is reduced by 30%, the maximum thermal distortion can be reduced by 31.7%. Results in this paper can offer theoretical base for better solving thermal problems in laser system.","PeriodicalId":6416,"journal":{"name":"2009 Symposium on Photonics and Optoelectronics","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2009-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Thermal Analysis of Rectangular Nd:YVO4 Crystal Double-Side-Pumped by LD\",\"authors\":\"Wen Chen, P. Shi, Z. Hua, Long Li, Ansheng Gan\",\"doi\":\"10.1109/SOPO.2009.5230310\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Based on analytical theory, distributions of temperature field and thermal distortion field in a rectangular Nd:YVO4 crystal double-side-pumped by LD are investigated. Through the analysis of working characteristics of Nd:YVO4 crystal, a thermal model that matches actual situations of Nd:YVO4 crystal is established. General expressions of temperature field and thermal distortion field in Nd:YVO4 crystal are obtained. And two methods of effectively reducing thermal distortion in Nd:YVO4 crystal are put forward. Results show that a maximum temperature rise of 362.2°C and a maximum thermal distortion of 5.55 μm are obtained in Nd:YVO4 crystal when the output power of the two laser diodes used to pump the Nd:YVO4 crystal are both 30 W. When the off- center distance is 0.6mm, the maximum thermal distortion can be reduced by37.7%; when the thickness of the crystal is reduced by 30%, the maximum thermal distortion can be reduced by 31.7%. Results in this paper can offer theoretical base for better solving thermal problems in laser system.\",\"PeriodicalId\":6416,\"journal\":{\"name\":\"2009 Symposium on Photonics and Optoelectronics\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2009-09-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2009 Symposium on Photonics and Optoelectronics\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/SOPO.2009.5230310\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2009 Symposium on Photonics and Optoelectronics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/SOPO.2009.5230310","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Thermal Analysis of Rectangular Nd:YVO4 Crystal Double-Side-Pumped by LD
Based on analytical theory, distributions of temperature field and thermal distortion field in a rectangular Nd:YVO4 crystal double-side-pumped by LD are investigated. Through the analysis of working characteristics of Nd:YVO4 crystal, a thermal model that matches actual situations of Nd:YVO4 crystal is established. General expressions of temperature field and thermal distortion field in Nd:YVO4 crystal are obtained. And two methods of effectively reducing thermal distortion in Nd:YVO4 crystal are put forward. Results show that a maximum temperature rise of 362.2°C and a maximum thermal distortion of 5.55 μm are obtained in Nd:YVO4 crystal when the output power of the two laser diodes used to pump the Nd:YVO4 crystal are both 30 W. When the off- center distance is 0.6mm, the maximum thermal distortion can be reduced by37.7%; when the thickness of the crystal is reduced by 30%, the maximum thermal distortion can be reduced by 31.7%. Results in this paper can offer theoretical base for better solving thermal problems in laser system.
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