Quasi-three-level continuous wave Nd:Na2La4(WO4)7 lasers at 0.9 μm

IF 4.4 2区物理与天体物理 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Results in Physics Pub Date : 2024-09-19 DOI:10.1016/j.rinp.2024.107984

Chu Chu , Yongliang Li , Chong Chen , Hailong Feng , Haoran Guo

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Abstract

A diode-pumped continuous wave (CW) Nd:Na₂La₄(WO₄)₇ (Nd:NLW) laser operating at 0.9 μm on ⁴F_3/2 → ⁴I_9/2 transition was demonstrated. Four single- wavelengths (the 889 nm and 912 nm in σ-polarization, the 890 nm and 905 nm in π-polarization) were obtained by rotating an intracavity birefringent filter (BF).

At an absorbed pump power of 17.4 W at 808 nm, the highest output power of single-wavelength at 912 nm was 3.4 W. Furthermore, the dual-wavelength at 889 and 912 nm in σ-polarization and the dual-wavelength at 890 and 905 nm in π-polarization were also achieved, respectively. At an absorbed pump power of 17.4 W, the maximum total output powers of the dual-wavelengths at 889 and 912 nm was 2.12 W. To the best of our knowledge, this is the first quasi-three-level Nd:NLW laser operating at 0.9 μm.

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0.9 μm 波长的准三阶连续波 Nd:Na2La4(WO4)7 激光器

演示了一种二极管泵浦连续波（CW）Nd:Na2La4(WO4)7 (Nd:NLW)激光器，其工作波长为 0.9 μm，处于 4F3/2 → 4I9/2 转变阶段。通过旋转腔内双折射滤波器（BF）获得了四个单一波长（σ偏振波长为 889 nm 和 912 nm，π偏振波长为 890 nm 和 905 nm）。在 808 nm 波长处的吸收泵浦功率为 17.4 W 时，912 nm 波长处的单波长最高输出功率为 3.4 W。此外，还分别实现了 σ 偏振下 889 和 912 nm 波长处的双波长，以及 π 偏振下 890 和 905 nm 波长处的双波长。据我们所知，这是第一台工作在 0.9 μm 波长的准三级 Nd:NLW 激光器。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Results in Physics MATERIALS SCIENCE, MULTIDISCIPLINARYPHYSIC-PHYSICS, MULTIDISCIPLINARY

CiteScore

8.70

自引率

9.40%

发文量

754

审稿时长

50 days

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