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We experimentally identify that narrow bandpass-filtering can significantly reduce the timing jitter in normal-dispersion fiber lasers. Both the split-step method-based jitter simulation and the modified Namiki-Haus analytic model agree well with the measured jitter spectrum.
Influences of initial pulse parameters on self-similar evolution efficiency in fiber amplifiers with gain shaping are discussed. Optimal center wavelength, duration, negative chirp and triangular profile can minimize the gain-shaping disturbance and accelerate self-similar amplification.
We present the generation of a terahertz pulse train from a rectangular GaP waveguide emitter pumped by a compact photonic crystal fiber femtosecond amplifier. The effects of the pump pulse width and chirp characteristics on the terahertz conversion efficiency and the generated THz spectrum were studied. The peak spectrum could be easily tuned by altering the separation of the compression grating...
We present a high power terahertz time-domain spectroscopy (THz-TDS) pumped by an all photonic crystal fiber (PCF) femtosecond laser system, and studied the effects of pulse shape working on the terahertz conversion efficiency.
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