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High-power thulium-doped fiber laser in an all-fiber configuration
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SYSNO ASEP 0473096 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title High-power thulium-doped fiber laser in an all-fiber configuration Author(s) Baravets, Yauhen (URE-Y)
Todorov, Filip (URE-Y)
Honzátko, Pavel (URE-Y) RIDArticle number 101420G Source Title 20TH SLOVAK-CZECH-POLISH OPTICAL CONFERENCE ON WAVE AND QUANTUM ASPECTS OF CONTEMPORARY OPTICS, 10142. - Bellinghem : SPIE, 2016 / Senderáková Dagmar - ISSN 0277-786X - ISBN 978-1-5106-0733-0 Number of pages 4 s. Publication form Print - P Action 20th Slovak-Czech-Polish Optical Conference on Wave and Quantum Aspects of Contemporary Optics (SCPOC) Event date 05.09.2016 - 09.09.2016 VEvent location Jasna Country SK - Slovakia Event type WRD Language eng - English Country US - United States Keywords Fiber Laser ; Thulium ; Cladding Pumping Subject RIV JA - Electronics ; Optoelectronics, Electrical Engineering R&D Projects TH01010997 GA TA ČR - Technology Agency of the Czech Republic (TA ČR) LD15122 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support URE-Y - RVO:67985882 UT WOS 000393152700015 EID SCOPUS 85011650225 DOI 10.1117/12.2263526 Annotation High-power Tm-doped fiber lasers are greatly suitable for various applications, such as material processing, medicine, environmental monitoring and topography. In this work we present an all-fiber narrowband CW laser in near fundamental mode operation based on a Tm-doped double-clad active fiber pumped by 793 nm laser diodes with a central wavelength stabilized at 2039 nm by a fiber Bragg grating. The achieved output power is 60 W with a slope efficiency of 46%. The measured beam quality factor is less than 1.4. Further increasing of the output power is possible using various power scaling techniques, for example, coherent combination of several Tm-doped fiber lasers. The developed fiber laser could be employed for welding, cutting and marking of thermoplastics in industry, minimally invasive surgery in medicine or sensors in lidar systems. Future improvements of thulium fiber lasers are possible due to the extremely wide gain-bandwidth of the active medium and the rapid growth of 2-mu m fiber components production Workplace Institute of Radio Engineering and Electronics Contact Petr Vacek, vacek@ufe.cz, Tel.: 266 773 413, 266 773 438, 266 773 488 Year of Publishing 2017
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