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In this paper, precise synchronization of the femtosecond and picosecond laser regenerative amplifiers with different wavelengths and independent seed oscillators was achieved using the electronic phase-locked loop and global clock techniques. The root-mean-square relative timing jitter of the two regenerative amplifiers was measured as 0.66 ps using a modified statistical method based on the error...
We have experimentally studied the passive Q-switching performance of a Nd:YAG ceramic laser with GaAs saturable absorber. Depending on the laser intensity in the GaAs wafer, the Q-switched laser showed much different performance. The shortest pulse obtained has 4.7 ns pulse width, 6.25 muJ pulse energy and 1.33 kW peak power.
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