High-energy femtosecond Yb-doped all-fiber monolithic chirped-pulse amplifier at repetition rate of 1 MHz

doi:10.1088/1674-1056/25/9/094208

Abstract

A high-energy femtosecond all ytterbium fiber amplifier based on a chirped-pulse amplification (CPA) technique at a repetition rate of 1 MHz seeded by a dispersion-management mode-locked picosecond broadband oscillator is studied. We find that the compressed pulse duration is dependent on the amplified energy, the pulse duration of 804 fs corresponds to the maximum amplified energy of 10.5 μJ, while the shortest pulse duration of 424 fs corresponds to the amplified energy of 6.75 μJ. The measured energy fluctuation is approximately 0.46% root mean square (RMS) over 2 h. The low-cost femtosecond fiber laser source with super-stability will be widely used in industrial micromachines, medical therapy, and scientific studies.

Keywords: high-energy femtosecond pulse chirped-pulse amplification all-fiber amplifier

Received: 13 April 2016
Revised: 08 May 2016
Accepted manuscript online:

PACS:	42.55.-f	(Lasers)
	42.55.Wd	(Fiber lasers)
	42.60.Da	(Resonators, cavities, amplifiers, arrays, and rings)
	42.60.-v	(Laser optical systems: design and operation)

Fund:

Project supported by the National Key Technology Research and Development Program of the Ministry of Science and Technology of China (Grant No. 2012BAC23B03), the National Key Basic Research Program of China (Grant No. 2013CB922401), and the National Natural Science Foundation of China (Grant No. 11474002).

Corresponding Authors: Hao Teng, Zhi-Yi Wei
E-mail: hteng@iphy.ac.cn;zywei@iphy.ac.cn

Cite this article:

Zhi-Guo Lv(吕志国), Hao Teng(滕浩), Li-Na Wang(王立娜), Jun-Li Wang(王军利), Zhi-Yi Wei(魏志义) High-energy femtosecond Yb-doped all-fiber monolithic chirped-pulse amplifier at repetition rate of 1 MHz 2016 Chin. Phys. B 25 094208

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High-energy femtosecond Yb-doped all-fiber monolithic chirped-pulse amplifier at repetition rate of 1 MHz

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