Abstract
By combining multiple photonic crystal fibers with sequentially decreasing zero-dispersion wavelengths we have produced a average-power white-light continuum, covering the visible–near-infrared spectrum from ( width), with an all-fiber picosecond ytterbium pump laser. Wavelengths as short as the ultraviolet , and spectral power densities of more than in the blue spectral region, have been generated. The process is understood in terms of optimizing four-wave mixing phase matching to enhance short-wavelength generation.
© 2005 Optical Society of America
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