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Low loss, high NA chalcogenide glass fibers for broadband mid-infrared supercontinuum generation

Zhang, Bin; Guo, Wei; Yu, Yi; Zhai, Chengcheng; Qi, Sisheng; Yang, Anping; Li, Lei; Yang, Zhiyong; Wang, Rongping; Tang, Dingyuan; Tao, Guangming; Luther-Davies, Barry


High-purity Ge–As–Se and Ge–As–S chalcogenide glasses were prepared by modified physical and chemical purification techniques. Using the purified glasses, step-index fibers with a small core (~5.5 μm) and large numerical aperture (~1.3) were fabricated. When a 13.5-cm-long fiber was pumped with 320 fs pulses at a repetition rate of 10.5 MHz at 4.1 μm, supercontinuum spanning from ~1.8 to ~9.8 μm with a dynamic range of ±10 dB and an average power of ~3 mW was generated.

CollectionsANU Research Publications
Date published: 2015-05
Type: Journal article
Source: Journal of the American Ceramic Society
DOI: 10.1111/jace.13574


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