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11 March 2020 High pulse energy, all-fiber supercontinuum source using tapered photonic crystal fibers (Conference Presentation)
Oyewole Benjamin Efunbajo, Patrick Bowen, Peter M. Moselund, Peter E. Andersen, Ole Bang
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Proceedings Volume 11260, Fiber Lasers XVII: Technology and Systems; 112601I (2020) https://doi.org/10.1117/12.2546796
Event: SPIE LASE, 2020, San Francisco, California, United States
Abstract
We report a high pulse, all-fiber supercontinuum source generated by pumping 2 ns long pulses at 100kHz from an ytterbium-doped fiber amplifier (YDFA) into a 15 m tapered photonics crystal fiber (PCF). The YDFA operates at 1066 nm, and the zero-dispersion wavelength of the PCF is at 1040 nm. The PCF is a 15 µm core at the input, tapered down to 5 µm at the output. The tapering is done such that the core-pitch ratio is maintained along the length of the fiber used. The resulting supercontinuum spans from 450 nm to 2400 nm, with a total pulse energy of more than 7uJ. The supercontinuum covers the visible spectrum making it useful for applications that require substantial pulse energies such as photoacoustic tomography.
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Oyewole Benjamin Efunbajo, Patrick Bowen, Peter M. Moselund, Peter E. Andersen, and Ole Bang "High pulse energy, all-fiber supercontinuum source using tapered photonic crystal fibers (Conference Presentation)", Proc. SPIE 11260, Fiber Lasers XVII: Technology and Systems, 112601I (11 March 2020); https://doi.org/10.1117/12.2546796
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KEYWORDS
Photonic crystal fibers
Supercontinuum sources
Amplifiers
Fiber amplifiers
Photoacoustic tomography
Visible radiation
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