Experimental study of diode-pumped Nd, Y: CaF2 amplifier for inertial confinement fusion laser driver

CORC > 上海硅酸盐研究所 > 中国科学院上海硅酸盐研究所 > 透明光功能无机材料重点实验室 > 期刊论文

	Experimental study of diode-pumped Nd, Y: CaF2 amplifier for inertial confinement fusion laser driver
	Tang Xiong-Xin 1,2,3; Qiu Ji-Si 1,2,3; Fan Zhong-Wei 1,2; Wang Hao-Cheng 1,2; Liu Yue-Liang 1; Liu Hao 1,2; Su Liang-Bi 4,5
刊名	ACTA PHYSICA SINICA
	2016-10-20
卷号	65 期号:20
关键词	laser amplifier sidepumped small signal gain Nd Y:CaF2
英文摘要	In a conventional laser-driven inertial confinement fusion (ICF), Nd-doped phosphate glass is used as a gain medium. However, the repetition frequency operation of such a laser system is restricted by the low thermal conductivity of the phosphate glass. To attain a high ICF performance, the laser driver must be able to operate at a repetition frequency of no less than 10 Hz. Typically, an Nd-doped laser glass operates at a repetition frequency well below 10 Hz. In this paper, an Nd, Y: CaF2 crystal is taken as a gain medium for the laser amplifier, and experiments are carried out to demonstrate the capability of Nd, Y: CaF2 crystal to act as a gain medium for ICF laser driver. A laser-diode plane-array five-direction horizontal-side-pumped Nd, Y: CaF2 laser amplifier.5 mm x 70 mm is developed and an experimental study is carried out. The absorption spectrum and emission spectrum of Nd, Y: CaF2 crystal and the fluorescence distribution of the amplifier are measured. The Nd: CaF2 co-doped with Y3+ ions results in a broad absorption band, which makes the laser diode pumping more efficient. The strongest excitation band peak is centered around 796 nm. The small signal gains of Nd, Y: CaF2 and Nd: Glass working respectively at repetition frequencies of 10 and 1 Hz under the same pump power are measured. The small signal gain of Nd, Y: CaF2 amplifier reaches 6.12 under a pump power of 9.63 kW, which is 1.5 times that of Nd: Glass amplifier. The measurements of the spectrum of the seed beam and the spectrum from Nd, Y: CaF2 amplifier show that the signals have no change before and after being amplified. Most likely the Nd, Y: CaF2 crystal is a promising laser material for repetitive ICF laser drivers.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Physics, Multidisciplinary
研究领域[WOS]	Physics
关键词[WOS]	CRYSTALS
收录类别	SCI
语种	英语
WOS记录号	WOS:000389465700014
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/21936]
专题	上海硅酸盐研究所_透明光功能无机材料重点实验室_期刊论文
作者单位	1.Chinese Acad Sci, Acad Optoelect, Beijing 100094, Peoples R China 2.Natl Engn Res Ctr DPSSL, Beijing 100094, Peoples R China 3.Zhongkeheguang Appl Laser Technol Inst Co Ltd, Tianjin 300304, Peoples R China 4.Chinese Acad Sci, Shanghai Inst Ceram, Synthet Single Crystal Res Ctr, Shanghai 201899, Peoples R China 5.Chinese Acad Sci, Shanghai Inst Ceram, Key Lab Transparent & Optofunct Inorgan Mat, Shanghai 201899, Peoples R China
推荐引用方式 GB/T 7714	Tang Xiong-Xin,Qiu Ji-Si,Fan Zhong-Wei,et al. Experimental study of diode-pumped Nd, Y: CaF2 amplifier for inertial confinement fusion laser driver[J]. ACTA PHYSICA SINICA,2016,65(20).
APA	Tang Xiong-Xin.,Qiu Ji-Si.,Fan Zhong-Wei.,Wang Hao-Cheng.,Liu Yue-Liang.,...&Su Liang-Bi.(2016).Experimental study of diode-pumped Nd, Y: CaF2 amplifier for inertial confinement fusion laser driver.ACTA PHYSICA SINICA,65(20).
MLA	Tang Xiong-Xin,et al."Experimental study of diode-pumped Nd, Y: CaF2 amplifier for inertial confinement fusion laser driver".ACTA PHYSICA SINICA 65.20(2016).