Chinese Journal of Quantum Electronics ›› 2023, Vol. 40 ›› Issue (4): 476-482.doi: 10.3969/j.issn.1007-5461.2023.04.006

• Laser Tech. and Devices • Previous Articles     Next Articles

Picosecond pulse fiber front end based on narrow⁃band dissipative soliton Figure⁃9 fiber oscillator and single⁃stage single⁃mode fiber amplifier

ZHANG Zhen 1,2, DUAN Dian 1,2, CHEN Yujun 1,2, WEI Shanshan 1, MA Jindong 1, YAO Bo 1, MAO Qinghe 1*   

  1. ( 1 Anhui Provincial Key Laboratory of Photonics Devices and Materials, Anhui Institute of Optics and Fine Mechanics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China; 2 University of Science and Technology of China, Hefei 230026, China )
  • Received:2021-04-02 Revised:2021-05-15 Published:2023-07-28 Online:2023-07-28

Abstract: A picosecond pulse fiber front end based on a narrow-band dissipative soliton Figure-9 fiber oscillator and a single-stage single-mode fiber amplifier is reported here. By optimizing the fiber length of the fiber oscillator cavity, a self-starting single pulse mode-locked narrow-band dissipative soliton picosecond pulse with a center wavelength of about 1064 nm, a repetition rate of 10 MHz, and a pulse energy of 0.4 nJ is obtained. Then the 21.07 ps picosecond pulse generated by the fiber oscillator is amplified by a single-stage single-mode fiber amplifier, and the spectrum can still maintain a bell-shaped structure with a 3 dB spectral width of 0.31 nm and a pulse width of 19.8 ps, respectively, even the pulse energy reaches 10 nJ. The picosecond fiber front end is expected to play an important role in precision machining and other fields.

Key words: laser techniques, mode-locked fiber laser, pulse energy, nonlinear phase shift

CLC Number: