Abstract
We have fabricated a new type of seven-core photonic crystal fiber and demonstrated its all-fiber supercontinuum source pumped with a ytterbium-doped fiber master oscillator power amplifier. The generated supercontinuum covers the wavelength range from 720 nm to beyond 1700 nm, with an output power of 42.3 W. It is the first high-power all-fiber SC source based on seven-core photonic crystal fiber.
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