Abstract
We demonstrate an all-fiber supercontinuum source that generates a continuous spectrum from 1.6μm to >11 μm with 417mW on-time average power at 33% duty cycle. By utilizing a master oscillator power amplifier pump with three amplification stages and concatenating solid core ZBLAN, arsenic sulfide, and arsenic selenide fibers, we shift 1550nm light to ∼4.5 μm, ∼6.5 μm, and >11 μm, respectively. With 69mW past 7.5μm, this source provides both high power and broad spectral expansion, while outputting a single fundamental mode.
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