QQ客服 官方微博 反馈留言

	Laser performance of Yb3+: YAG ceramic microchip lasers - art no 645118
	Dong, Jun ; Shirakawa, Akira ; Ueda, Ken-ichi ; Yagi, Hideki ; Yanagitani, Takagimi ; Kaminskii, Alexander A. ; Hoffman, HJ ; Shori, RK ; Hodgson, N ; Dong J(董俊)
	2007
关键词	Yb : YAG ceramic lasers microchip laser dual-wavelength operation laser-diode pumping multilongitudinal-mode oscillation Q-switched
英文摘要	The optical properties of Yb:YAG ceramic doped with different Yb concentrations are presented. The absorption coefficient at peak absorption wavelength of 940 nm increases linearly with Yb concentration in Yb:YAG ceramics. Low-threshold and highly-efficient continuous-wave (cw) laser-diode end-pumped Yb:YAG microchip ceramic laser with near-diffraction-limited beam quality was demonstrated at room temperature. Slope efficiencies of 79%, 67% and optical-to-optical efficiency of 60%, 53% at 1030 nm and 1049 nm, respectively were achieved for 1-mm-thick Yb:YAG ceramic plate (C-Yb = 9.8 at.%) under cw laser-diode pumping. Dual-wavelength operation at 1030 nm and 1049 nm with 5% transmission of the output. coupler was achieved by varying pump power intensity. 1049 nm laser operation was automatically obtained by using 5% transmission output coupler when absorbed pump power is higher than I W. The lasers operate in multi-longitudinal-mode; the effect of pump power on the laser emission spectra for both wavelengths is addressed. The laser wavelength around 1030 nm shifts to short wavelength at low pump power region and then to red with increase of the absorbed pump power, while the laser wavelength around 1049 nm does not change with the pump power. Excellent laser performance indicates Yb:YAG ceramic laser materials could be potentially used in high-power solid-state lasers operating at 1030 nm, 1049 nm, or both wavelengths simultaneously. Laser-diode pumped low-threshold and highly-efficient passively Q-switched Yb:YAG ceramic microchip laser with Cr4+:YAG ceramic as saturable absorber has also been demonstrated. The slope efficiency is as high as 37%, and the optical-to-optical efficiency is as high as 29% for 89% initial transmission of Cr4+:YAG ceramic. The pulse width of 380 ps and peak power of over 82 kW at repetition rate of 12.4 kHz was obtained. Single-longitudinal-mode oscillation and wide-separated multi-longitudinal-mode oscillation due to etalon effect of Cr4+:YAG thin plate was achieved depending on the pump power level.
语种	英语
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/71089]
专题	信息技术－已发表论文
推荐引用方式 GB/T 7714	Dong, Jun,Shirakawa, Akira,Ueda, Ken-ichi,et al. Laser performance of Yb3+: YAG ceramic microchip lasers - art no 645118[J],2007.
APA	Dong, Jun.,Shirakawa, Akira.,Ueda, Ken-ichi.,Yagi, Hideki.,Yanagitani, Takagimi.,...&董俊.(2007).Laser performance of Yb3+: YAG ceramic microchip lasers - art no 645118..
MLA	Dong, Jun,et al."Laser performance of Yb3+: YAG ceramic microchip lasers - art no 645118".(2007).

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。