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A compact multi-loop stretcher system with a pulse confining structure was demonstrated. This system generated chirped pulse with 32 ps/nm chirp rate. The energy loss in the stretcher was compensated by the OPCPA.
We demonstrate an extreme chirped pulse modelocked laser, simultaneously generating near-transform-limited 3.9 ps optical pulses and 510 ps linearly chirped output. The design overcomes fundamental limitations of energy extraction and nonlinearities induced by gain dynamics.
We demonstrate the generation of near-Fourier-limited 9.8 plusmn 0.3 fs laser pulses with an intensity exceeding a terawatt at 30 Hz repetition rate, using noncollinear optical parametric chirped pulse amplification. Amplified fluorescence is kept below 1%.
Intense 5.1-fs pulses were generated through filamentation in argon while maintaining the CEO phase. The benefits to CEO phase control of using the generated octave-spanning spectrum for single shot f-2f spectral interferometry are also presented.
We demonstrate 160-GHz optical pulse train generation using a 40-GHz driven phase modulator followed by two stages of delayed interferometers. The simulation shows the pulse width of the generated 160-GHz chirp-free CSRZ is 3.13 ps.
Ultrashort vacuum ultraviolet pulses at 161 nm with energies above 1 muJ were generated by chirped-pulse four-wave difference-frequency mixing in argon-filled aluminum-coated hollow waveguide. The pulses were compressed to 140-fs pulse duration by material dispersion.
We report a novel method for high-energy, few-cycle pulse generation through the combination of parametric amplification and enhancement cavities. Dispersion in the cavity ceases to be a concern with the use of long pump pulses.
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