Jinfang Yang, Zhaohua Wang, Jiajun Song, Renchong Lv, Xianzhi Wang, Jiangfeng Zhu, Zhiyi Wei. Diode-pumped 10 W femtosecond Yb:CALGO laser with high beam quality[J]. High Power Laser Science and Engineering, 2021, 9(2): 02000e33
- High Power Laser Science and Engineering
- Vol. 9, Issue 2, 02000e33 (2021)
Fig. 1. Schematic diagram of the experimental setup. DM, dichroic mirror; GTI1, GTI2, Gires–Tournois interferometer mirrors; LD, fiber-coupled laser diode; M1–M3, concave mirrors; M4, plane mirror; OC, output coupler; SESAM, semiconductor saturable absorber mirror.
Fig. 2. With a 10% transmittance of OC, average output power versus pump power for the Yb:CALGO laser at 1041 nm.
Fig. 3. The output power stability of the Yb:CALGO oscillator in 3 h.
Fig. 4. The output laser spectrum of Yb:CALGO femtosecond oscillator.
Fig. 5. Autocorrelation trace of center wavelength of 1041 nm.
Fig. 6. The typical pulse train of mode-locking in different timescales: (a) 2 ns, (b) 10 ns, and (c) 2 
s.
s. Fig. 7. Typical RF spectrum of the Yb:CALGO laser with the RBW of 1 kHz. Inset: RF spectrum at 1 GHz wide-span with the RBW of 300 kHz.
Fig. 8. The beam spatial profile of the Yb:CALGO laser at the output power of 10 W.
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