Conference paper
High power, ultra-broadband supercontinuum source based on highly GeO2 doped silica fiber
We demonstrate a 74 mol % GeO2 doped fiber for mid-infrared supercontinuum generation. Experiments ensure a highest output power for a broadest spectrum from 700nm to 3200nm from this fiber, while being pumped by a broadband 4 stage Erbium fiber based MOPA. The effect of repetition rate of pump source and length of Germania-doped fiber has also been investigated.
Further, Germania doped fiber has been pumped by conventional Silica based photonic crystal fiber supercontinuum source. At low power, a considerable broadening of 200-300nm was observed. Further broadening of spectrum was limited due to limited power of pump source. Our investigations reveal the unexploited potential of Germania doped fiber for mid-infrared supercontinuum generation.
This measurement ensures a possibility of Germania based photonic crystal fiber or a step-index fiber supercontinuum source for high power ultra-broad band emission being pumped a 1060nm or a 1550nm laser source. To the best of our knowledge, this is the record power, ultra-broadband, and all-fiberized SC light source based on Silica and Germania fiber ever demonstrated to the date.
Language: | English |
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Publisher: | SPIE - International Society for Optical Engineering |
Year: | 2017 |
Pages: | 1008318-1008318-4 |
Proceedings: | Fiber Lasers XIV: Technology and Systems |
Series: | Proceedings of Spie - the International Society for Optical Engineering |
ISBN: | 1510606076 , 1510606084 , 9781510606074 and 9781510606081 |
ISSN: | 1996756x and 0277786x |
Types: | Conference paper |
DOI: | 10.1117/12.2251648 |
ORCIDs: | Bang, Ole |