Journal
OPTICS EXPRESS
Volume 21, Issue 20, Pages 24281-24287Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.21.024281
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Funding
- EU [300859, 258033]
- UK EPSRC [EP/I01196X/1]
- EPSRC [EP/H049371/1, EP/I01196X/1, EP/H02607X/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/H02607X/1, EP/H049371/1, EP/I01196X/1, 1107216] Funding Source: researchfish
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We present the first demonstration of mid-IR supercontinuum generation directly pumped with picosecond pulses from a Thulium fiber-amplified gain-switched laser diode at 2 mu m. We achieve more than two octaves of bandwidth from 750 - 4000 nm in step-index ZBLAN fiber with Watt-level average power and spectral flatness of less than 1.5 dB over a 1300 nm range in the mid-IR from 2450 - 3750 nm. The system offers high stability, power-scaling capability to the 10 W regime, and demonstrates an attractive route towards relatively inexpensive, versatile and practical sources of high power broadband mid-IR radiation. (C)2013 Optical Society of America
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