Spectral characterization and laser operation of Ho:SrF2 single-crystal fiber
An efficient Ho:SrF2 single-crystal fiber (SCF), lightly Ho-doped to a concentration of 0.5 at%, was successfully grown using the temperature gradient technique, and its laser characteristics were studied. Several optical parameters of the Ho:SrF2 SCF were determined using the Judd-Ofelt (J-O) theor...
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| Veröffentlicht in: | Journal of alloys and compounds 2022-11, Vol.920, p.166009, Article 166009 |
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| container_title | Journal of alloys and compounds |
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| creator | Liu, Jingjing Zhang, Cheng Wang, Yangxiao Zhang, Zhen Zhang, Zhonghan Wu, Anhua Liu, Jie Su, Liangbi |
| description | An efficient Ho:SrF2 single-crystal fiber (SCF), lightly Ho-doped to a concentration of 0.5 at%, was successfully grown using the temperature gradient technique, and its laser characteristics were studied. Several optical parameters of the Ho:SrF2 SCF were determined using the Judd-Ofelt (J-O) theory, including the J-O intensity parameters, radiative lifetimes, and fluorescence branching ratios. In addition, the continuous-wave (CW), tunable, and passive Q-switched (PQS) laser operations of Ho:SrF2 SCF pumped by a thulium-doped fiber laser were demonstrated in this study. While the CW laser was operating, average output power greater than 1 W and a continuous tuning range of 62 nm were obtained. For the PQS operation, a minimum pulse duration of 779 ns with a repetition rate of 36.27 kHz was achieved using silver nanorods as saturable absorbers. These results indicate that the Ho:SrF2 SCF has potential application in tunable or ultrafast laser at 2.1 µm. |
| doi_str_mv | 10.1016/j.jallcom.2022.166009 |
| format | Article |
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Several optical parameters of the Ho:SrF2 SCF were determined using the Judd-Ofelt (J-O) theory, including the J-O intensity parameters, radiative lifetimes, and fluorescence branching ratios. In addition, the continuous-wave (CW), tunable, and passive Q-switched (PQS) laser operations of Ho:SrF2 SCF pumped by a thulium-doped fiber laser were demonstrated in this study. While the CW laser was operating, average output power greater than 1 W and a continuous tuning range of 62 nm were obtained. For the PQS operation, a minimum pulse duration of 779 ns with a repetition rate of 36.27 kHz was achieved using silver nanorods as saturable absorbers. These results indicate that the Ho:SrF2 SCF has potential application in tunable or ultrafast laser at 2.1 µm.</description><identifier>ISSN: 0925-8388</identifier><identifier>EISSN: 1873-4669</identifier><identifier>DOI: 10.1016/j.jallcom.2022.166009</identifier><language>eng</language><publisher>Lausanne: Elsevier BV</publisher><subject>Concentration gradient ; Continuous radiation ; Crystal fibers ; Doped fibers ; Fiber lasers ; Nanorods ; Parameters ; Pulse duration ; Q switched lasers ; Single crystals ; Strontium fluorides ; Thulium ; Tunable lasers ; Ultrafast lasers</subject><ispartof>Journal of alloys and compounds, 2022-11, Vol.920, p.166009, Article 166009</ispartof><rights>Copyright Elsevier BV Nov 5, 2022</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c229t-7c06d8b7642b37a0e6bce3a0799a3ebc6ad0cd03f730096f704d44d4535f263b3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,777,781,27905,27906</link.rule.ids></links><search><creatorcontrib>Liu, Jingjing</creatorcontrib><creatorcontrib>Zhang, Cheng</creatorcontrib><creatorcontrib>Wang, Yangxiao</creatorcontrib><creatorcontrib>Zhang, Zhen</creatorcontrib><creatorcontrib>Zhang, Zhonghan</creatorcontrib><creatorcontrib>Wu, Anhua</creatorcontrib><creatorcontrib>Liu, Jie</creatorcontrib><creatorcontrib>Su, Liangbi</creatorcontrib><title>Spectral characterization and laser operation of Ho:SrF2 single-crystal fiber</title><title>Journal of alloys and compounds</title><description>An efficient Ho:SrF2 single-crystal fiber (SCF), lightly Ho-doped to a concentration of 0.5 at%, was successfully grown using the temperature gradient technique, and its laser characteristics were studied. Several optical parameters of the Ho:SrF2 SCF were determined using the Judd-Ofelt (J-O) theory, including the J-O intensity parameters, radiative lifetimes, and fluorescence branching ratios. In addition, the continuous-wave (CW), tunable, and passive Q-switched (PQS) laser operations of Ho:SrF2 SCF pumped by a thulium-doped fiber laser were demonstrated in this study. While the CW laser was operating, average output power greater than 1 W and a continuous tuning range of 62 nm were obtained. For the PQS operation, a minimum pulse duration of 779 ns with a repetition rate of 36.27 kHz was achieved using silver nanorods as saturable absorbers. These results indicate that the Ho:SrF2 SCF has potential application in tunable or ultrafast laser at 2.1 µm.</description><subject>Concentration gradient</subject><subject>Continuous radiation</subject><subject>Crystal fibers</subject><subject>Doped fibers</subject><subject>Fiber lasers</subject><subject>Nanorods</subject><subject>Parameters</subject><subject>Pulse duration</subject><subject>Q switched lasers</subject><subject>Single crystals</subject><subject>Strontium fluorides</subject><subject>Thulium</subject><subject>Tunable lasers</subject><subject>Ultrafast lasers</subject><issn>0925-8388</issn><issn>1873-4669</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><recordid>eNotkFFLwzAUhYMoOKc_QSj43HqTtEnjmwznhIkP0-eQpom2dE296R7mr7ejgwsHLufcy_kIuaeQUaDisc1a03U27DMGjGVUCAB1QRa0lDzNhVCXZAGKFWnJy_Ka3MTYAgBVnC7I-25wdkTTJfbHoLGjw-bPjE3oE9PXSWeiwyQMDudd8MkmPO1wzZLY9N-dSy0e4zjFfVM5vCVX3nTR3Z11Sb7WL5-rTbr9eH1bPW9Ty5gaU2lB1GUlRc4qLg04UVnHDUilDHeVFaYGWwP3kk9NhJeQ1_k0BS88E7ziS_Iw3x0w_B5cHHUbDthPLzWTUHJFlVKTq5hdFkOM6LwesNkbPGoK-kROt_pMTp_I6Zkc_wduAWP3</recordid><startdate>20221105</startdate><enddate>20221105</enddate><creator>Liu, Jingjing</creator><creator>Zhang, Cheng</creator><creator>Wang, Yangxiao</creator><creator>Zhang, Zhen</creator><creator>Zhang, Zhonghan</creator><creator>Wu, Anhua</creator><creator>Liu, Jie</creator><creator>Su, Liangbi</creator><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20221105</creationdate><title>Spectral characterization and laser operation of Ho:SrF2 single-crystal fiber</title><author>Liu, Jingjing ; Zhang, Cheng ; Wang, Yangxiao ; Zhang, Zhen ; Zhang, Zhonghan ; Wu, Anhua ; Liu, Jie ; Su, Liangbi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c229t-7c06d8b7642b37a0e6bce3a0799a3ebc6ad0cd03f730096f704d44d4535f263b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Concentration gradient</topic><topic>Continuous radiation</topic><topic>Crystal fibers</topic><topic>Doped fibers</topic><topic>Fiber lasers</topic><topic>Nanorods</topic><topic>Parameters</topic><topic>Pulse duration</topic><topic>Q switched lasers</topic><topic>Single crystals</topic><topic>Strontium fluorides</topic><topic>Thulium</topic><topic>Tunable lasers</topic><topic>Ultrafast lasers</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Liu, Jingjing</creatorcontrib><creatorcontrib>Zhang, Cheng</creatorcontrib><creatorcontrib>Wang, Yangxiao</creatorcontrib><creatorcontrib>Zhang, Zhen</creatorcontrib><creatorcontrib>Zhang, Zhonghan</creatorcontrib><creatorcontrib>Wu, Anhua</creatorcontrib><creatorcontrib>Liu, Jie</creatorcontrib><creatorcontrib>Su, Liangbi</creatorcontrib><collection>CrossRef</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Journal of alloys and compounds</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Liu, Jingjing</au><au>Zhang, Cheng</au><au>Wang, Yangxiao</au><au>Zhang, Zhen</au><au>Zhang, Zhonghan</au><au>Wu, Anhua</au><au>Liu, Jie</au><au>Su, Liangbi</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Spectral characterization and laser operation of Ho:SrF2 single-crystal fiber</atitle><jtitle>Journal of alloys and compounds</jtitle><date>2022-11-05</date><risdate>2022</risdate><volume>920</volume><spage>166009</spage><pages>166009-</pages><artnum>166009</artnum><issn>0925-8388</issn><eissn>1873-4669</eissn><abstract>An efficient Ho:SrF2 single-crystal fiber (SCF), lightly Ho-doped to a concentration of 0.5 at%, was successfully grown using the temperature gradient technique, and its laser characteristics were studied. Several optical parameters of the Ho:SrF2 SCF were determined using the Judd-Ofelt (J-O) theory, including the J-O intensity parameters, radiative lifetimes, and fluorescence branching ratios. In addition, the continuous-wave (CW), tunable, and passive Q-switched (PQS) laser operations of Ho:SrF2 SCF pumped by a thulium-doped fiber laser were demonstrated in this study. While the CW laser was operating, average output power greater than 1 W and a continuous tuning range of 62 nm were obtained. For the PQS operation, a minimum pulse duration of 779 ns with a repetition rate of 36.27 kHz was achieved using silver nanorods as saturable absorbers. These results indicate that the Ho:SrF2 SCF has potential application in tunable or ultrafast laser at 2.1 µm.</abstract><cop>Lausanne</cop><pub>Elsevier BV</pub><doi>10.1016/j.jallcom.2022.166009</doi></addata></record> |
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| source | Elsevier ScienceDirect Journals |
| subjects | Concentration gradient Continuous radiation Crystal fibers Doped fibers Fiber lasers Nanorods Parameters Pulse duration Q switched lasers Single crystals Strontium fluorides Thulium Tunable lasers Ultrafast lasers |
| title | Spectral characterization and laser operation of Ho:SrF2 single-crystal fiber |
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