Factors influencing optical uniformity of YAG single-crystal fiber grown by micro-pulling-down technology

CrystEngComm ◽  
2019 ◽  
Vol 21 (45) ◽  
pp. 6929-6934 ◽  
Author(s):  
Baiyi Wu ◽  
Hongkun Nie ◽  
Anye Wang ◽  
Jian Zhang ◽  
Zhitai Jia ◽  
...  

This work reports on the growth of Nd:YAG single crystal fibers by the micro-pulling down (μ-PD) method, and factors of optical uniformity and laser operation have been discussed.

Author(s):  
Ben Eshel ◽  
G. Maxwell ◽  
C. M. Liebig ◽  
K. L. Averett ◽  
S. A. McDaniel ◽  
...  

2020 ◽  
Vol 28 (5) ◽  
pp. 6684 ◽  
Author(s):  
Yangxiao Wang ◽  
Shaozhao Wang ◽  
Jingya Wang ◽  
Zhonghan Zhang ◽  
Zhen Zhang ◽  
...  

Laser Physics ◽  
2009 ◽  
Vol 19 (10) ◽  
pp. 2031-2034 ◽  
Author(s):  
J. W. Shen ◽  
B. Wu ◽  
Y. H. Shen

Crystals ◽  
2017 ◽  
Vol 7 (7) ◽  
pp. 200 ◽  
Author(s):  
Jun Shu ◽  
Eugenio Damiano ◽  
Alberto Sottile ◽  
Zhonghan Zhang ◽  
Mauro Tonelli

2020 ◽  
Vol 20 (10) ◽  
pp. 6329-6336
Author(s):  
Zhonghan Zhang ◽  
Shaozhao Wang ◽  
Xiaoyue Feng ◽  
Qinghui Wu ◽  
Xiaobo Qian ◽  
...  

2010 ◽  
Vol 32 (9) ◽  
pp. 1251-1255 ◽  
Author(s):  
Igor Martial ◽  
Stefano Bigotta ◽  
Marc Eichhorn ◽  
Christelle Kieleck ◽  
Julien Didierjean ◽  
...  

MRS Bulletin ◽  
1988 ◽  
Vol 13 (10) ◽  
pp. 47-55 ◽  
Author(s):  
Robert S. Feigelson

Single-crystal fibers represent perhaps one of the most underexplored areas of material science. Despite some early interest and excitement 30 years ago, the lack of immediate applications led to a decline in research activity, and until recently, little was known about their growth behavior and properties. During the past few years single-crystal fiber research has been revived and preliminary results have stimulated considerable interest in the scientific community.At present, the most extensive and broadly based single-crystal fiber program is at Stanford University, where the focus has been on studying fibers for optical applications. This program emerged from a desire to combine the light-guiding properties of fiber geometries with the unique physical properties of crystalline materials, as was done during the last decade for glass fiber applications. Such materials could lead to a range of novel devices with higher efficiencies than possible in bulk crystals. But single-crystal fiber growth technology may have an even broader applicability. While single-crystal fibers of semiconductor, superconductor, and high strength materials could play an important role in future device applications, an important current use for the single-crystal fiber growth technology is in preparing single crystals of a wide variety of materials for property evaluation. Fiber crystals may have much higher crystalline perfection than bulk crystals of the same composition, making them useful for studying the intrinsic properties of a material and for improving device performance. Other areas of interest which have been identified include metastable phase formation and the growth of oriented ferroic domain and multiphase structures.


Crystals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 78
Author(s):  
Anye Wang ◽  
Jian Zhang ◽  
Shuai Ye ◽  
Xiaofei Ma ◽  
Baiyi Wu ◽  
...  

Single-crystal fibers (SCFs) have a great application potential in high-power lasers due to their excellent performance. In this work, high-quality and crack-free Yb3+:Lu3Al5O12 (Yb:LuAG) SCFs were successfully fabricated by the micro-pulling-down (μ-PD) technology. Based on the laser micrometer and the X-ray Laue diffraction results, these Yb:LuAG SCFs have a less than 5% diameter fluctuation and good crystallinity along the axial direction. More importantly, the distribution of Yb ions is proved to be uniform by electron probe microanalysis (EPMA) and the scanning electron microscope (SEM). In the laser experiment, the continuous-wave (CW) output power using a 1 mm diameter Yb:LuAG single-crystal fiber is determined to be 1.96 W, at the central wavelength of 1047 nm, corresponding to a slope efficiency of 13.55%. Meanwhile, by applying a 3 mm diameter Yb:LuAG SCF, we obtain a 4.7 W CW laser output at 1049 nm with the slope efficiency of 22.17%. The beam quality factor M2 is less than 1.1 in both conditions, indicating a good optical quality of the grown fiber. Our results show that the Yb:LuAG SCF is a potential solid-state laser gain medium for 1 μm high-power lasers.


CrystEngComm ◽  
2021 ◽  
Vol 23 (7) ◽  
pp. 1657-1662
Author(s):  
Na Zhang ◽  
Yuqing Yin ◽  
Jian Zhang ◽  
Tao Wang ◽  
Siyuan Wang ◽  
...  

Lu2O3 crystals have attracted intense attention due to their great potential in the field of high power solid-state lasers.


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