All-normal-dispersion figure-8 and figure-9 femtosecond Yb-doped fiber lasers

Kun Zhao; Minzhe Liu; Menglin Liu; Wei Yan; Yong Wang

doi:10.1117/12.2585010

4 December 2020 All-normal-dispersion figure-8 and figure-9 femtosecond Yb-doped fiber lasers

Kun Zhao, Minzhe Liu, Menglin Liu, Wei Yan, Yong Wang

Proceedings Volume 11617, International Conference on Optoelectronic and Microelectronic Technology and Application; 1161714 (2020) https://doi.org/10.1117/12.2585010
Event: International Conference on Optoelectronic and Microelectronic Technology and Application, 2020, Nanjing, China

Abstract

The applications of femtosecond lasers are undergoing a period of explosive growth in the laser micromachining market. We demonstrated an all-normal-dispersion figure-8 mode-locked fiber oscillator using a nonlinear amplifying loop mirror, delivering laser pulses with 8.2-nJ pulse energy. The spectral bandwidth of 10 nm is realized at the repetition rate of 10 MHz. The pulse width of the chirped pulses is 6.7 ps and the output pulses can be compressed to below 200 fs. An all-normal-dispersion figure-9 laser is also presented in this letter. The repetition rate of the laser can be improved to 25.7 MHz. Owing to their compact sizes, high stability and superior self-starting ability, the all-normal-dispersion figure-8 and figure-9 lasers have the potential to be used in industrial grade femtosecond laser systems.

Citation Download Citation

Kun Zhao, Minzhe Liu, Menglin Liu, Wei Yan, and Yong Wang "All-normal-dispersion figure-8 and figure-9 femtosecond Yb-doped fiber lasers", Proc. SPIE 11617, International Conference on Optoelectronic and Microelectronic Technology and Application, 1161714 (4 December 2020); https://doi.org/10.1117/12.2585010

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