Počet záznamů: 1
Holmium monolithic fiber lasers: An investigation of the fiber Bragg grating spatial dimensions on fiber laser performance
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SYSNO ASEP 0555642 Druh ASEP C - Konferenční příspěvek (mezinárodní konf.) Zařazení RIV D - Článek ve sborníku Název Holmium monolithic fiber lasers: An investigation of the fiber Bragg grating spatial dimensions on fiber laser performance Tvůrce(i) Theodosiou, A. (CY)
Aubrecht, Jan (URE-Y) RID
Peterka, Pavel (URE-Y) RID
Kalli, K. (CY)Celkový počet autorů 4 Číslo článku 117730L Zdroj.dok. Proceedings of SPIE, Micro-structured and Specialty Optical Fibres VII, 11773. - BELLINGHAM : SPIE, 2021 / Kalli K. - ISSN 0277-786X - ISBN 978-1-5106-4381-9 Poč.str. 9 s. Forma vydání Tištěná - P Akce Conference on Micro-structured and Specialty Optical Fibres VII Datum konání 19.04.2021 - 23.04.2021 Místo konání Virtual, Online Země US - Spojené státy americké Typ akce WRD Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova Femtosecond laser ; Fiber Bragg gratings ; Medium infrared fiber lasers Vědní obor RIV BH - Optika, masery a lasery Obor OECD Optics (including laser optics and quantum optics) Institucionální podpora URE-Y - RVO:67985882 UT WOS 000696183900009 EID SCOPUS 85109214821 DOI 10.1117/12.2592374 Anotace We have investigated how the physical dimensions of a fiber Bragg grating (FBG) may affect the performance of a monolithic fiber laser system. In particular, we perform a series of direct laser inscriptions in a Holmium-doped single mode fiber using the plane-by-plane femtosecond laser inscription method, using exactly the same inscription conditions but having different grating widths. Specifically, the gratings were divided in to three groups, group 1, gratings inscribed with planes having widths smaller of the core size but in the center of the fiber, group 2, gratings inscribed with plane widths similar to the core diameter and group 3, gratings with plane widths larger the core diameter that were extended uniformly in to cladding region. All the gratings were characterized in a fiber laser configuration and their performance were analyzed using as metrics the threshold power, the effective length and the power slope efficiency. We note that all the gratings were designed to have a resonance Bragg wavelength at 2.1 mu m, having the same length and inscribed directly through the fiber coating. The monolithic fiber laser strands were pumped using Thulium-doped fiber laser operating at 1.95 mu m. The results clearly show that the spatial dimensions of the FBGs are certainly an important parameter that is required for consideration during the development of the monolithic fiber lasers, especially for medium and high-power fiber laser systems Pracoviště Ústav fotoniky a elektroniky Kontakt Petr Vacek, vacek@ufe.cz, Tel.: 266 773 413, 266 773 438, 266 773 488 Rok sběru 2022
Počet záznamů: 1