Direct generation of orthogonally polarized dual-wavelength at 639 nm and 721 nm in blue diode-pumped Pr:YLF lasers

Qinyun Yuan; Ran Xia; Yu Xiao; Gang Xu; Xiahui Tang

doi:10.1117/12.2641928

21 December 2022 Direct generation of orthogonally polarized dual-wavelength at 639 nm and 721 nm in blue diode-pumped Pr:YLF lasers

Qinyun Yuan, Ran Xia, Yu Xiao, Gang Xu, Xiahui Tang

Author Affiliations +

Proceedings Volume 12312, Advanced Laser Processing and Manufacturing VI; 123120A (2022) https://doi.org/10.1117/12.2641928
Event: SPIE/COS Photonics Asia, 2022, Online Only

Abstract

In the framework of laser technology, blue-light pumped Pr-doped materials are ideal candidates for blue, green, orange, red and deep red laser emission due to abundant transitions in visible band of praseodymium ions (Pr3+). In this communication, for the first time to our knowledge, we report on direct generations of an orthogonally polarized continuous-wave (CW) laser with dual-wavelength at 639nm and 721nm by means of a diode-pumped Pr:YLF laser platform. Without any extra thermal control on the crystal, the adjustment of pumping power or the cavity length enables the shift of the bi-chromatic output from one wavelength to the other. The stability of the output dual-wavelength laser is significantly improved when the resonator is appropriately misaligned. This work provides a simple way for direct generation and convenient control of an orthogonally polarized dual-wavelength laser at red and deep red with compact structure, high conversion efficiency and high beam quality.

Conference Presentation

Citation Download Citation

Qinyun Yuan, Ran Xia, Yu Xiao, Gang Xu, and Xiahui Tang "Direct generation of orthogonally polarized dual-wavelength at 639 nm and 721 nm in blue diode-pumped Pr:YLF lasers", Proc. SPIE 12312, Advanced Laser Processing and Manufacturing VI, 123120A (21 December 2022); https://doi.org/10.1117/12.2641928

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