Diode-pumped self-starting mode-locked femtosecond Yb：YCa4O(BO3)3 laser

doi:10.1088/1674-1056/23/5/054207

Abstract A self-starting mode-locked femtosecond laser is accomplished with an oxoborate self-frequency doubling crystal Yb:YCa₄O(BO₃)₃ (Yb:YCOB) as the gain medium and a semiconductor mirror as the saturable absorber. Pumped by a 976-nm fiber-coupled diode laser with 50-u m core diameter, stable mode-locked laser pulses up to 430 mW were obtained at a repetition rate of 83.61 MHz under 5-W pump power. The autocorrelation measurement shows that the pulse duration is as short as 150 fs by assuming the sech² pulse shape at a central wavelength of 1048 nm. This work has demonstrated a compact and reliable femtosecond laser source for prospective low-cost applications.

Keywords: diode pump Yb：YCa₄O(BO₃)₃ crystal femtosecond mode-locking

Received: 30 November 2013
Revised: 04 January 2014
Accepted manuscript online:

PACS:	42.55.Rz	(Doped-insulator lasers and other solid state lasers)
	42.55.Xi	(Diode-pumped lasers)
	42.60.Fc	(Modulation, tuning, and mode locking)

Fund: Project supported by the National Natural Science Foundation of China (Grant No. 61205130), the National Key Scientific Instruments Development Program of China (Grant No. 2012YQ120047), and the Fundamental Research Funds for the Central Universities of Ministry of Education of China (Grant No. K5051305008).

Corresponding Authors: Wei Zhi-Yi
E-mail: zywei@aphy.iphy.ac.cn

About author: 42.55.Rz; 42.55.Xi; 42.60.Fc

Cite this article:

Gao Zi-Ye (高子叶), Zhu Jiang-Feng (朱江峰), Tian Wen-Long (田文龙), Wang Jun-Li (王军利), Wang Qing (王庆), Zhang Zhi-Guo (张治国), Wei Zhi-Yi (魏志义), Yu Hao-Hai (于浩海), Zhang Huai-Jin (张怀金), Wang Ji-Yang (王继扬) Diode-pumped self-starting mode-locked femtosecond Yb：YCa₄O(BO₃)₃ laser 2014 Chin. Phys. B 23 054207

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Diode-pumped self-starting mode-locked femtosecond Yb：YCa4O(BO3)3 laser

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Diode-pumped self-starting mode-locked femtosecond Yb：YCa₄O(BO₃)₃ laser