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ORIGINAL RESEARCH article

Front. Phys.
Sec. Optics and Photonics
Volume 12 - 2024 | doi: 10.3389/fphy.2024.1468722

Tunable continuous wave Yb:CaWO 4 laser operating in NIR spectral region

Provisionally accepted
Yong L. Li Yong L. Li *Hao Yu Hao Yu Chong Chen Chong Chen
  • The School of Opto-Electronic Engineering, Changchun University of Science and Technology, Changchun, China

The final, formatted version of the article will be published soon.

    A tunable continuous wave (CW) Yb:CaWO4 laser operating in near infrared (NIR) spectral region is demonstrated by pumping with a diode laser.Continuously broadband tunable wavelengths are obtained in two polarizations by rotating the Lyot filter. The tuning widths of the output wavelengths in the πand σ-polarizations are 42 nm (from 1005.2 nm to 1047.2 nm) and 41.8 nm (from 1005.1 nm to 1046.9 nm), respectively. At an absorbed pump power of 15.6 W at 976 nm, the maximum output powers in the π-and σ-polarizations are 5.2 W at 1026.2 nm and 4.7 W at 1028.1 nm, respectively. To the best of our knowledge, this is the first tunable laser operation by using Yb:CaWO4 crystal.

    Keywords: Diode-pumped, solid-state laser, tunable, Yb:CaWO4, Lyot filter

    Received: 22 Jul 2024; Accepted: 06 Sep 2024.

    Copyright: © 2024 Li, Yu and Chen. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence: Yong L. Li, The School of Opto-Electronic Engineering, Changchun University of Science and Technology, Changchun, China

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