Narrow linewidth tunable and dual wavelength compact Alexandrite laser

Narrow linewidth tunable and dual wavelength compact Alexandrite laser
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窄线宽可调双波长紧凑型紫翠玉激光器

DOI:
10.1117/12.2545018
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发表时间:
2020
期刊:
--
影响因子:
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通讯作者:
Tawy G
Tawy G
中科院分区:
--
文献类型:
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作者:
Tawy G

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在本工作中,我们提出了一种具有连续波长调谐和双波长操作的新型紧凑型亚历山大宝石激光器。波长调谐是通过倾斜布鲁斯特切割的亚历山大变石晶体来改变平面腔中的路径长度和双折射来实现的。光纤耦合二极管泵浦提供了一个小占地稳定的系统,在tem00模式下输出功率<1W。结果表明,两种激光晶体的最宽调谐为746 ~ 768nm,线宽为15 GHz。通过改变晶体温度也证明了波长调谐速率为- 0.07nmK - 1。此外,还显示了具有12-13nm峰对峰分离的稳定双波长操作。基于几何路径长度和折射率变化的波长调谐理论模型与实验结果非常吻合。用第二种紧凑腔体设计研究了系统的功率缩放。总调谐范围为754 ~ 769nm,双波长工作,最大功率为3.2W,光束质量M2= 1.8。
In this work we present a novel compact Alexandrite laser with continuous wavelength tuning and dual wavelength operation. Wavelength tuning is achieved by tilting a Brewster-cut Alexandrite crystal to change the path length and birefringence in a plane-plane cavity. Fiber-coupled diode pumping provides a small footprint stable system with <1W of output power in TEM00mode. Results are shown for two laser crystals with the broadest tuning of 746-768nm demonstrated with 15 GHz linewidth. Wavelength tuning at a rate of −0.07nmK−1is also demonstrated by varying the crystal temperature. Stable dual wavelength operation with 12-13nm peak-to- peak separation is shown in addition. A theoretical model for wavelength tuning based on the change in geometrical path length and refractive index is found to be in excellent agreement with the experimental results. Power scaling of the system is also investigated with a second compact cavity design. A total tuning range of 754-769nm and dual wavelength operation is demonstrated with a maximum power of 3.2W and beam quality M2= 1.8.
具有波长可调性的连续波紫翠玉环形激光器的单向单频操作。
DOI: 10.1364/oe.26.031129
发表时间: 2018
期刊: Optics express
影响因子: 3.8
作者:
Sheng X
通讯作者: Sheng X
使用晶体双折射控制的可调谐双波长自调Q紫翠玉激光器。
DOI: 10.1364/oe.27.017507
发表时间: 2019
期刊: Optics express
影响因子: 3.8
作者:
Tawy G
通讯作者: Tawy G
二极管端面泵浦下温度对可调谐连续紫翠玉激光器的影响。
DOI: 10.1364/oe.26.007771
发表时间: 2018
期刊: Optics express
影响因子: 3.8
作者:
W. Kerridge;M. Damzen
通讯作者: M. Damzen