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A new type of seven-core photonic crystal fiber was designed and fabricated for high power supercontinuum generation. Such design has the merits of high efficient coupling, and especially high beam quality.
We report a GeO2 doped triangular-core photonic crystal fiber which is allow the generation of a hollow beam supercontinuum ranging from 540 to 1540 nm through a nonlinear-optical transformation by femtosecond pulses at 1038 nm.
An all-solid photonic bandgap fiber with the first bandgap from 450–900nm was designed for visible supercontinuum generation. Sub-nanosecond pulses from 532nm microchip laser pumped this fiber with the achieved spectrum from 532–900nm.
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