73-fs SESAM mode-locked Tm,Ho:CNGG laser at 2061 nm

Yicheng Wang; Yongguang Zhao; Zhongben Pan; Soile Suomalainen; Antti Härkönen; Mircea Guina; Uwe Griebner; Li Wang; Pavel Loiko; Xavier Mateos; Weidong Chen; Valentin Petrov

doi:10.1117/12.2548180

21 February 2020 73-fs SESAM mode-locked Tm,Ho:CNGG laser at 2061 nm

Yicheng Wang, Yongguang Zhao, Zhongben Pan, Soile Suomalainen, Antti Härkönen, Mircea Guina, Uwe Griebner, Li Wang, Pavel Loiko, Xavier Mateos, Weidong Chen, Valentin Petrov

Author Affiliations +

Proceedings Volume 11259, Solid State Lasers XXIX: Technology and Devices; 1125929 (2020) https://doi.org/10.1117/12.2548180
Event: SPIE LASE, 2020, San Francisco, California, United States

Abstract

Tm,Ho co-doped disordered calcium niobium gallium garnet (CNGG) crystals are investigated as a novel gain medium for mode-locked lasers near 2 μm. With a GaSb-based semiconductor saturable absorber mirror (SESAM) and chirped mirrors for dispersion compensation such a laser is mode-locked at a repetition rate of 89.3 MHz. For a 5% output coupler, a maximum average output power of 157 mW is obtained with a pulse duration of 170 fs (28-nm broad spectrum centered at 2.075 μm, leading to a time-bandwidth product of 0.331). With a 0.5% output coupler, 73-fs pulses are generated at 2.061 μm with a spectral width of 62 nm (time-bandwidth product of 0.320) and an average output power of 36 mW.

Citation Download Citation

Yicheng Wang, Yongguang Zhao, Zhongben Pan, Soile Suomalainen, Antti Härkönen, Mircea Guina, Uwe Griebner, Li Wang, Pavel Loiko, Xavier Mateos, Weidong Chen, and Valentin Petrov "73-fs SESAM mode-locked Tm,Ho:CNGG laser at 2061 nm", Proc. SPIE 11259, Solid State Lasers XXIX: Technology and Devices, 1125929 (21 February 2020); https://doi.org/10.1117/12.2548180

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