Verdet constant of potassium terbium fluoride crystal as a function of wavelength and temperature

0538879 - FZÚ 2021 RIV US eng J - Journal Article
Vojna, David - Duda, Martin - Yasuhara, R. - Slezák, Ondřej - Schlichting, W. - Stevens, K. - Chen, H. - Lucianetti, Antonio - Mocek, Tomáš
Verdet constant of potassium terbium fluoride crystal as a function of wavelength and temperature.
Optics Letters. Roč. 45, č. 7 (2020), s. 1683-1686. ISSN 0146-9592. E-ISSN 1539-4794
R&D Projects: GA MŠMT EF15_006/0000674; GA MŠMT LO1602
EU Projects: European Commission(XE) 739573 - HiLASE CoE
Grant - others:OP VVV - HiLASE-CoE(XE) CZ.02.1.01/0.0/0.0/15_006/0000674
Institutional support: RVO:68378271
Keywords : Faraday isolators * potassium terbium fluoride crystal * Verdet constant
OECD category: Optics (including laser optics and quantum optics)
Impact factor: 3.776, year: 2020
Method of publishing: Open access

Potassium terbium fluoride KTb3F10 (KTF) crystal is a promising magneto-active material for creating multi-kilowatt average-power Faraday isolators operating at the visible and near-infrared wavelengths. Nevertheless, the key material’s parameter needed for the design of any Faraday isolator—the Verdet constant, has not been comprehensively investigated yet. In this Letter, we report on measurement of the Verdet constant of the KTF crystal for wavelengths between 600 and 1500 nm and for temperatures ranging from 15 to 295 K. A suitable model for the Verdet constant as a function of wavelength and temperature has been developed and may be conveniently used for optimal design of KTF-based high-average-power Faraday isolators.
Permanent Link: http://hdl.handle.net/11104/0316624