K. Rong, H. Cai, Xiaoxu Liu, Juhong Han, Wei Zhang, G. An, Hongyuan Wang, Lei Wang, You Wang
{"title":"脉冲中红外Ho3+:BaY2F8激光器的理论评价","authors":"K. Rong, H. Cai, Xiaoxu Liu, Juhong Han, Wei Zhang, G. An, Hongyuan Wang, Lei Wang, You Wang","doi":"10.1109/OGC.2019.8925174","DOIUrl":null,"url":null,"abstract":"In this study, we construct a theoretical model to analyze the output characteristics of a pulsed Ho<sup>3+</sup>:BaY<inf>2</inf>f<inf>8</inf> (Ho<sup>3+</sup>:BYF) laser by taking both energy transfer up-conversion (ETU) and cross relaxation (CR) processes into account. The influences of the pump energy, pulse width, reflectance of an output coupler (OC), crystal length, and Ho<sup>3+</sup> doping concentration on the physical performances are investigated in detail for an end-pumped structure. The calculation results reveal that the proper length of a Ho<sup>3+</sup>:BaY<inf>2</inf>f<inf>8</inf>crystal is from 5 to 10 mm for the Ho<sup>3+</sup> doping concentration of 10–40 at.%. We also deduce that a high output can be obtained when the Ho<sup>3+</sup> doping concentration is selected as 30 at.%. It has been demonstrated that the relaxation oscillation of a Ho:BYF laser can be observed for a pulsed pump source. We can see that the threshold peak power of a pump light source decreases with the increase of the pulse width. The conclusions might be useful for the realization of a pulsed mid-infrared Ho<sup>3+</sup>: BYF laser.","PeriodicalId":381981,"journal":{"name":"2019 IEEE 4th Optoelectronics Global Conference (OGC)","volume":"109 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":"{\"title\":\"Theoretical Evaluation of a Pulsed Mid-Infrared Ho3+:BaY2F8 Laser\",\"authors\":\"K. Rong, H. Cai, Xiaoxu Liu, Juhong Han, Wei Zhang, G. An, Hongyuan Wang, Lei Wang, You Wang\",\"doi\":\"10.1109/OGC.2019.8925174\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In this study, we construct a theoretical model to analyze the output characteristics of a pulsed Ho<sup>3+</sup>:BaY<inf>2</inf>f<inf>8</inf> (Ho<sup>3+</sup>:BYF) laser by taking both energy transfer up-conversion (ETU) and cross relaxation (CR) processes into account. The influences of the pump energy, pulse width, reflectance of an output coupler (OC), crystal length, and Ho<sup>3+</sup> doping concentration on the physical performances are investigated in detail for an end-pumped structure. The calculation results reveal that the proper length of a Ho<sup>3+</sup>:BaY<inf>2</inf>f<inf>8</inf>crystal is from 5 to 10 mm for the Ho<sup>3+</sup> doping concentration of 10–40 at.%. We also deduce that a high output can be obtained when the Ho<sup>3+</sup> doping concentration is selected as 30 at.%. It has been demonstrated that the relaxation oscillation of a Ho:BYF laser can be observed for a pulsed pump source. We can see that the threshold peak power of a pump light source decreases with the increase of the pulse width. The conclusions might be useful for the realization of a pulsed mid-infrared Ho<sup>3+</sup>: BYF laser.\",\"PeriodicalId\":381981,\"journal\":{\"name\":\"2019 IEEE 4th Optoelectronics Global Conference (OGC)\",\"volume\":\"109 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2019-09-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2019 IEEE 4th Optoelectronics Global Conference (OGC)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/OGC.2019.8925174\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2019 IEEE 4th Optoelectronics Global Conference (OGC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/OGC.2019.8925174","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Theoretical Evaluation of a Pulsed Mid-Infrared Ho3+:BaY2F8 Laser
In this study, we construct a theoretical model to analyze the output characteristics of a pulsed Ho3+:BaY2f8 (Ho3+:BYF) laser by taking both energy transfer up-conversion (ETU) and cross relaxation (CR) processes into account. The influences of the pump energy, pulse width, reflectance of an output coupler (OC), crystal length, and Ho3+ doping concentration on the physical performances are investigated in detail for an end-pumped structure. The calculation results reveal that the proper length of a Ho3+:BaY2f8crystal is from 5 to 10 mm for the Ho3+ doping concentration of 10–40 at.%. We also deduce that a high output can be obtained when the Ho3+ doping concentration is selected as 30 at.%. It has been demonstrated that the relaxation oscillation of a Ho:BYF laser can be observed for a pulsed pump source. We can see that the threshold peak power of a pump light source decreases with the increase of the pulse width. The conclusions might be useful for the realization of a pulsed mid-infrared Ho3+: BYF laser.
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