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Er/Yb Double-Clad Fiber Laser With fs-Laser Inscribed Plane-by-Plane Chirped FBG Laser Mirrors
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SYSNO ASEP 0505914 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Er/Yb Double-Clad Fiber Laser With fs-Laser Inscribed Plane-by-Plane Chirped FBG Laser Mirrors Author(s) Theodosiou, A. (CY)
Aubrecht, Jan (URE-Y) RID
Peterka, Pavel (URE-Y) RID
Kašík, Ivan (URE-Y) RID
Todorov, Filip (URE-Y)
Moravec, Ondřej (URE-Y)
Honzátko, Pavel (URE-Y) RID
Kalli, K. (CY)Number of authors 8 Source Title IEEE Photonics Technology Letters. - : Institute of Electrical and Electronics Engineers - ISSN 1041-1135
Roč. 31, č. 5 (2019), s. 409-412Number of pages 4 s. Publication form Print - P Language eng - English Country US - United States Keywords Bragg gratings ; femtosecond lasers ; Fiber lasers Subject RIV BH - Optics, Masers, Lasers OECD category Optics (including laser optics and quantum optics) R&D Projects GA16-13306S GA ČR - Czech Science Foundation (CSF) Method of publishing Limited access Institutional support URE-Y - RVO:67985882 UT WOS 000460676200013 EID SCOPUS 85062695415 DOI 10.1109/LPT.2019.2896896 Annotation We present an efficient monolithic fiber laser incorporating fiber Bragg grating (FBG) mirrors inscribed directly into the active fiber using a femtosecond laser. The FBGs are inscribed in an erbium/ytterbium co-doped fiber using the direct-write, plane-by-plane femtosecond laser inscription method, which allows for complete spatial control of the refractive index change in the fiber core. This approach offers a significant advantage, as we eliminate the fiber splices typically required between the active and passive fibers that would, otherwise, incorporate the FBG. The gratings were characterized in transmission and reflection, and the performance of the fiber laser was recorded when the fiber was coiled into a circular and kidney shape. The kidney shape of the fiber coil improved the laser slope efficiency, as the inner cladding of the active fiber had a circular shape. Our results show that the control of the grating inscription parameters using the plane-by-plane inscription method can result in an efficient monolithic fiber laser 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 2020 Electronic address https://ieeexplore.ieee.org/document/8632947
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