{"title":"瓦级超快激光镶嵌铥波导激光器","authors":"Esrom Kifle , Pavel Loiko , Carolina Romero , Javier Rodríguez Vázquez de Aldana , Magdalena Aguiló , Francesc Díaz , Patrice Camy , Uwe Griebner , Valentin Petrov , Xavier Mateos","doi":"10.1016/j.pquantelec.2020.100266","DOIUrl":null,"url":null,"abstract":"<div><p><span><span><span>We report on the first watt-level ultrafast laser inscribed </span>Thulium </span>waveguide (WG) lasers. Depressed-index buried channel WGs with a circular cladding (type III) are produced in monoclinic Tm</span><sup>3+</sup>:KLu(WO<sub>4</sub>)<sub>2</sub> crystals. Laser operation is achieved under conventional (<sup>3</sup>H<sub>6</sub> → <sup>3</sup>H<sub>4</sub>) and in-band (<sup>3</sup>H<sub>6</sub> → <sup>3</sup>F<sub>4</sub><span><span>) pumping. In the former case, employing a Raman fiber laser emitting at 1679 nm as pump, the continuous-wave Tm channel WG laser generated 1.37 W at 1915–1923 nm with a record-high slope efficiency of 82.7% (with respect to the absorbed pump power), a threshold of only 17 mW and a spatially single-mode output with </span>linear polarization. The WG propagation losses were 0.2 ± 0.3 dB/cm. Passive Q-switching of Tm channel WG lasers is achieved using Cr</span><sup>2+</sup>:ZnS and Cr<sup>2+</sup>:ZnSe saturable absorbers. With Cr<sup>2+</sup>:ZnS, record-short pulses of 2.6 ns/6.9 μJ at a repetition rate of 8.0 kHz were generated. The developed WGs are promising for compact GHz mode-locked lasers at ~2 μm.</p></div>","PeriodicalId":414,"journal":{"name":"Progress in Quantum Electronics","volume":"72 ","pages":"Article 100266"},"PeriodicalIF":7.4000,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.pquantelec.2020.100266","citationCount":"13","resultStr":"{\"title\":\"Watt-level ultrafast laser inscribed thulium waveguide lasers\",\"authors\":\"Esrom Kifle , Pavel Loiko , Carolina Romero , Javier Rodríguez Vázquez de Aldana , Magdalena Aguiló , Francesc Díaz , Patrice Camy , Uwe Griebner , Valentin Petrov , Xavier Mateos\",\"doi\":\"10.1016/j.pquantelec.2020.100266\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p><span><span><span>We report on the first watt-level ultrafast laser inscribed </span>Thulium </span>waveguide (WG) lasers. Depressed-index buried channel WGs with a circular cladding (type III) are produced in monoclinic Tm</span><sup>3+</sup>:KLu(WO<sub>4</sub>)<sub>2</sub> crystals. Laser operation is achieved under conventional (<sup>3</sup>H<sub>6</sub> → <sup>3</sup>H<sub>4</sub>) and in-band (<sup>3</sup>H<sub>6</sub> → <sup>3</sup>F<sub>4</sub><span><span>) pumping. In the former case, employing a Raman fiber laser emitting at 1679 nm as pump, the continuous-wave Tm channel WG laser generated 1.37 W at 1915–1923 nm with a record-high slope efficiency of 82.7% (with respect to the absorbed pump power), a threshold of only 17 mW and a spatially single-mode output with </span>linear polarization. The WG propagation losses were 0.2 ± 0.3 dB/cm. Passive Q-switching of Tm channel WG lasers is achieved using Cr</span><sup>2+</sup>:ZnS and Cr<sup>2+</sup>:ZnSe saturable absorbers. With Cr<sup>2+</sup>:ZnS, record-short pulses of 2.6 ns/6.9 μJ at a repetition rate of 8.0 kHz were generated. The developed WGs are promising for compact GHz mode-locked lasers at ~2 μm.</p></div>\",\"PeriodicalId\":414,\"journal\":{\"name\":\"Progress in Quantum Electronics\",\"volume\":\"72 \",\"pages\":\"Article 100266\"},\"PeriodicalIF\":7.4000,\"publicationDate\":\"2020-08-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/j.pquantelec.2020.100266\",\"citationCount\":\"13\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Progress in Quantum Electronics\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0079672720300203\",\"RegionNum\":1,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, ELECTRICAL & ELECTRONIC\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Progress in Quantum Electronics","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0079672720300203","RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
We report on the first watt-level ultrafast laser inscribed Thulium waveguide (WG) lasers. Depressed-index buried channel WGs with a circular cladding (type III) are produced in monoclinic Tm3+:KLu(WO4)2 crystals. Laser operation is achieved under conventional (3H6 → 3H4) and in-band (3H6 → 3F4) pumping. In the former case, employing a Raman fiber laser emitting at 1679 nm as pump, the continuous-wave Tm channel WG laser generated 1.37 W at 1915–1923 nm with a record-high slope efficiency of 82.7% (with respect to the absorbed pump power), a threshold of only 17 mW and a spatially single-mode output with linear polarization. The WG propagation losses were 0.2 ± 0.3 dB/cm. Passive Q-switching of Tm channel WG lasers is achieved using Cr2+:ZnS and Cr2+:ZnSe saturable absorbers. With Cr2+:ZnS, record-short pulses of 2.6 ns/6.9 μJ at a repetition rate of 8.0 kHz were generated. The developed WGs are promising for compact GHz mode-locked lasers at ~2 μm.
期刊介绍：
Progress in Quantum Electronics, established in 1969, is an esteemed international review journal dedicated to sharing cutting-edge topics in quantum electronics and its applications. The journal disseminates papers covering theoretical and experimental aspects of contemporary research, including advances in physics, technology, and engineering relevant to quantum electronics. It also encourages interdisciplinary research, welcoming papers that contribute new knowledge in areas such as bio and nano-related work.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
