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Q-switched and mode locked pulses have been demonstraed in c-cut Nd:LuVO4 laser. Using 80% initial transmittance of Cr4+:YAG and output coupler with 70% refleactane, large pulse energy of about 112 muJ has been demonstrated at 18 W pumping.
Ultra-short pulse compression for tunable mode-locked Ti:sapphire lasers is demonstrated by utilizing a 1-mum-diameter tapered fiber with grating pairs. For 100 fs input pulses at the 880-nm center wavelength, the optical bandwidth is broadened from 14 nm to 45 nm after propagating through the 1-cm long tapered fiber. After passing through the grating pairs with 1.6 cm separation, the final pulse...
The Q-switched mode-locked (QML) pulses is demonstrated in a Nd:LuVO4 laser to generate peak power exceeding 400 kW. By the Cr:YAG with initial transmittance T0=40%, the Q-switching envelope about 30 ns and 6.9 kHz repetition rate is produced and the pulsewidth of CW-ML pulses is about 56 ps.
We demonstrated harmonic mode locking in nonlinear mirror mode-locked Nd:GdVO4 laser. In normal dispersion, fourth harmonic mode locking can be generated rate by changing the distance between the nonlinear crystal and output coupler mirror.
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