【摘 要】
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We report supercontinuum generation extending to the blue spectral region using pulses of 1.8ps duration at 1040 nm in GeO2-doped core photonic crystal fibers.A
【机 构】
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Wuhan National Laboratory of Optoelectronics, Huazhong University of Science and Tecnology, Wuhan 43
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We report supercontinuum generation extending to the blue spectral region using pulses of 1.8ps duration at 1040 nm in GeO2-doped core photonic crystal fibers.A spectrum in fundamental mode spanning from 415nm to beyond 1750 nm is generated in a uniform photonic crystal fiber (PCF).A zero dispersion wavelength decreasing PCF is fabricated to optimize the parameters for deeper blue components generated by cross-phase modulation and group-velocity matching.Although the PCF is pumped at a low input power of 1.3 W in anomalous dispersion and relatively far from the zero dispersion wavelength,a flat continuum covering 406.1 671.8nm is generated,which is of primary importance in a number of bio-photonic applications such as fluorescence imaging microscopy.
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