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A passively Q-switched mode-locking of diode-pumped TmYAP laser by use of InGaAs/GaAs as a saturable absorber is reported. The maximum Q-switched mode-locking output power was 480 mW near the wavelength range of 1.94 μm with pulse repetition frequency of 26.47 kHz. The beam quality was also measured to be 1.12 ± 0.02.
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Yao et al. (2011) studied this question.
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