Abstract
We demonstrate picosecond terahertz (THz)-wave generation via four-wave mixing in an octagonal photonic crystal fiber (O-PCF). Perfect phase-matching is obtained at the pump wavelength of and a generation scheme is proposed. Using this method, THz waves can be generated in the frequency range of . Moreover, peak power of , average power of , and peak conversion efficiency of more than at in a long fiber are realized with a pump peak power of .
© 2011 Optical Society of America
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