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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.
Numerical studies on the position effect of spectral filter (SF) in an all-normal-dispersion fiber laser are presented in this paper. The dependence of the available bandwidth range of the SF on its position in the laser cavity is investigated. Our simulation results suggest that the output pulses with high energy and strong peak power can be obtained when the SF with an appropriate spectral bandwidth...
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