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Dual Band Active Nanostructured Core Fiber for Two-Color Fiber Laser Operation
- 1.0564321 - ÚFE 2023 RIV US eng J - Journal Article
Franczyk, M. - Pysz, D. - Stepien, R. - Cimek, J. - Kasztelanic, R. - Chen, F. L. - Klimczak, M. - Zhao, L. - Kašík, Ivan - Peterka, Pavel - Buczynski, R.
Dual Band Active Nanostructured Core Fiber for Two-Color Fiber Laser Operation.
Journal of Lightwave Technology. Roč. 40, č. 21 (2022), s. 7180-7190. ISSN 0733-8724. E-ISSN 1558-2213
R&D Projects: GA ČR(CZ) GF21-45431L
Institutional support: RVO:67985882
Keywords : Optical fibers * Glass * Ions * Optical fiber dispersion * Optical fiber polarization * Erbium-doped fiber lasers * Pump lasers * Fiber lasers * optical fiber fabrication * optical fiber materials * optical fibers * optical glass
OECD category: Optics (including laser optics and quantum optics)
Impact factor: 4.7, year: 2022
Method of publishing: Limited access
https://doi.org/10.1109/JLT.2022.3199581
We present the experimental verification of a new type of an active nanostructured fiber devoted to simultaneous laser emission at two wavelengths: 1040 nm and 1534 nm in the fundamental mode. The fiber core is formed with two types of nanorods made of a phosphate glass doped with either Yb3+ or co-doped with Yb3+/Er3+ ions, respectively. A distribution of the nanorods in the core allows to control relative gain and modal properties of the fiber at both wavelengths and to maintain the single mode performance with a high quality beam generated in a single fiber core. The double-cladding fiber structure allows efficient excitation with a single 975 nm diode pump laser. As a proof-of-concept we demonstrated an active fiber with 15 mu m core diameter composed of 6649 nanorods with an individual diameter of 160 nm. The fiber was used in a laser setup. The laser operation was verified for simultaneous two-color laser generation at output power levels of 0.78 W and 0.42 W with slope efficiency of 23.0% and 9.8% at 1040 nm and 1534 nm, respectively.
Permanent Link: https://hdl.handle.net/11104/0338929
Number of the records: 1