红绿双波长Pr:LiGdF4激光器，单双折射滤光片

IF 1.2 4区物理与天体物理 Q4 OPTICS

Laser Physics Pub Date : 2023-10-16 DOI:10.1088/1555-6611/acfb78

Junwen Bai, Xinhua Fu

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引用次数: 0

摘要

在双折射滤光片(BF)激励下，用2 ω -OPSL双频率光泵浦半导体激光器，实验制备了双波长Pr:LiGdF - 4同步连续波激光器。计算了波束损耗随波长变化的特性。通过调节BF板，可以使所产生波长的光谱强度比保持在1:1。实验实现了604和523 nm的同步连续波双波长Pr:LiGdF激光器。当泵浦功率为7.2 W时，采用4%输出耦合器可产生604 nm和523 nm的红绿双波长激光辐射，输出功率为1.25 W。相对于吸收泵浦功率的斜率效率为19.8%，相对于最高入射泵浦功率的光对光效率为17.4%。据我们所知，这是首次在Pr:LiGdF 4激光中实现双波长的研究。

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Red and green dual-wavelength Pr:LiGdF₄ laser with a single birefringent filter

Abstract A simultaneous continuous-wave (CW) dual-wavelength Pr:LiGdF 4 laser using a single birefringent filter (BF) plate under excitation with a frequency doubled optically pumped semiconductor laser (2 ω -OPSL) was experimentally demonstrated. We calculate the wavelength-dependent loss property of the BF. By adjusting the BF plate, the spectral intensity ratio of the generated wavelengths can be maintained to be 1:1. A simultaneous CW dual-wavelength Pr:LiGdF 4 laser at 604 and 523 nm is experimentally realized. For a pump power of 7.2 W, red and green dual-wavelength laser radiation at 604 and 523 nm and 1.25 W of output power using a 4% output coupler could be generated. A slope efficiency of 19.8% with respect to the absorbed pump power and optical-to-optical efficiency of 17.4% for the highest-incident pump power were obtained. To our knowledge, this is the first study that has realized a dual-wavelength in Pr:LiGdF 4 laser.

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来源期刊

Laser Physics 物理-光学

CiteScore

2.60

自引率

8.30%

发文量

127

审稿时长

2.2 months

期刊介绍： Laser Physics offers a comprehensive view of theoretical and experimental laser research and applications. Articles cover every aspect of modern laser physics and quantum electronics, emphasizing physical effects in various media (solid, gaseous, liquid) leading to the generation of laser radiation; peculiarities of propagation of laser radiation; problems involving impact of laser radiation on various substances and the emerging physical effects, including coherent ones; the applied use of lasers and laser spectroscopy; the processing and storage of information; and more. The full list of subject areas covered is as follows: -physics of lasers- fibre optics and fibre lasers- quantum optics and quantum information science- ultrafast optics and strong-field physics- nonlinear optics- physics of cold trapped atoms- laser methods in chemistry, biology, medicine and ecology- laser spectroscopy- novel laser materials and lasers- optics of nanomaterials- interaction of laser radiation with matter- laser interaction with solids- photonics