4.7 Article

Low Loss, High NA Chalcogenide Glass Fibers for Broadband Mid-Infrared Supercontinuum Generation

Journal

JOURNAL OF THE AMERICAN CERAMIC SOCIETY
Volume 98, Issue 5, Pages 1389-1392

Publisher

WILEY
DOI: 10.1111/jace.13574

Keywords

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Funding

  1. National Natural Science Foundation of China [61205207, 51303072, 61405080]
  2. Natural Science Foundation of Colleges and Universities in Jiangsu Province [13KJB430013]
  3. Priority Academic Program Development of Jiangsu Higher Education Institutions
  4. Jiangsu Collaborative Innovation Centre of Advanced Laser Technology and Emerging Industry
  5. Australian Research Council Centre of Excellence for Ultrahigh Bandwidth Devices for Optical Systems (CUDOS) [CE110001018]
  6. China Scholarship Council (CSC) [201206110048]

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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 (similar to 5.5 mu m) and large numerical aperture (similar to 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 mu m, supercontinuum spanning from similar to 1.8 to similar to 9.8 mu m with a dynamic range of similar to 10 dB and an average power of similar to 3 mW was generated.

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