K. E. Reznikov, A. O. Mavritskiy, M. N. Esaulkov, A. V. Naumov, A. V. Konyashchenko
{"title":"直接多波长二极管泵浦Ti的基本原理：蓝宝石激光器在宽光谱范围内增强光对光转换效率","authors":"K. E. Reznikov, A. O. Mavritskiy, M. N. Esaulkov, A. V. Naumov, A. V. Konyashchenko","doi":"10.1134/S0021364025606773","DOIUrl":null,"url":null,"abstract":"<p>Direct-diode-pumped titanium–sapphire lasers are gaining popularity as sources of coherent light due to their wide emission bandwidth, cost-effectiveness, ergonomics and compactness. Despite recent advances in this field, reported laser output powers remain relatively low. Here, we present a theoretically and experimentally described pumping technique that involves the spectral and collinear combination of blue and green laser diode radiation. We show that this approach yields an impressive average optical-to-optical efficiency of 16.6% in continuous-wave laser mode and up to 43.6% in femtosecond mode based on Kerr-lens mode-locking. Consequently, with a maximum pump power of 15 W, the generated output power at 770 nm reaches 2.5 W in continuous-wave mode. With a pump of 14.5 W we have 1.84 W in femtosecond mode. In the future, such titanium–sapphire lasers promise to become even more accessible and user-friendly.</p>","PeriodicalId":604,"journal":{"name":"JETP Letters","volume":"121 11","pages":"834 - 845"},"PeriodicalIF":1.3000,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S0021364025606773.pdf","citationCount":"0","resultStr":"{\"title\":\"Fundamentals of Direct Multi-Wavelength Diode Pumping of Ti:Sapphire Lasers for Enhanced Optical-to-Optical Conversion Efficiency Across a Broad Spectral Range\",\"authors\":\"K. E. Reznikov, A. O. Mavritskiy, M. N. Esaulkov, A. V. Naumov, A. V. Konyashchenko\",\"doi\":\"10.1134/S0021364025606773\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Direct-diode-pumped titanium–sapphire lasers are gaining popularity as sources of coherent light due to their wide emission bandwidth, cost-effectiveness, ergonomics and compactness. Despite recent advances in this field, reported laser output powers remain relatively low. Here, we present a theoretically and experimentally described pumping technique that involves the spectral and collinear combination of blue and green laser diode radiation. We show that this approach yields an impressive average optical-to-optical efficiency of 16.6% in continuous-wave laser mode and up to 43.6% in femtosecond mode based on Kerr-lens mode-locking. Consequently, with a maximum pump power of 15 W, the generated output power at 770 nm reaches 2.5 W in continuous-wave mode. With a pump of 14.5 W we have 1.84 W in femtosecond mode. In the future, such titanium–sapphire lasers promise to become even more accessible and user-friendly.</p>\",\"PeriodicalId\":604,\"journal\":{\"name\":\"JETP Letters\",\"volume\":\"121 11\",\"pages\":\"834 - 845\"},\"PeriodicalIF\":1.3000,\"publicationDate\":\"2025-05-26\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://link.springer.com/content/pdf/10.1134/S0021364025606773.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"JETP Letters\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://link.springer.com/article/10.1134/S0021364025606773\",\"RegionNum\":4,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"PHYSICS, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"JETP Letters","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.1134/S0021364025606773","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"PHYSICS, MULTIDISCIPLINARY","Score":null,"Total":0}
Fundamentals of Direct Multi-Wavelength Diode Pumping of Ti:Sapphire Lasers for Enhanced Optical-to-Optical Conversion Efficiency Across a Broad Spectral Range
Direct-diode-pumped titanium–sapphire lasers are gaining popularity as sources of coherent light due to their wide emission bandwidth, cost-effectiveness, ergonomics and compactness. Despite recent advances in this field, reported laser output powers remain relatively low. Here, we present a theoretically and experimentally described pumping technique that involves the spectral and collinear combination of blue and green laser diode radiation. We show that this approach yields an impressive average optical-to-optical efficiency of 16.6% in continuous-wave laser mode and up to 43.6% in femtosecond mode based on Kerr-lens mode-locking. Consequently, with a maximum pump power of 15 W, the generated output power at 770 nm reaches 2.5 W in continuous-wave mode. With a pump of 14.5 W we have 1.84 W in femtosecond mode. In the future, such titanium–sapphire lasers promise to become even more accessible and user-friendly.
期刊介绍：
All topics of experimental and theoretical physics including gravitation, field theory, elementary particles and nuclei, plasma, nonlinear phenomena, condensed matter, superconductivity, superfluidity, lasers, and surfaces.
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