4.6 Article

1.5-14 μm midinfrared supercontinuum generation in a low-loss Te-based chalcogenide step-index fiber

Journal

OPTICS LETTERS
Volume 41, Issue 22, Pages 5222-5225

Publisher

OPTICAL SOC AMER
DOI: 10.1364/OL.41.005222

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Funding

  1. National Natural Science Foundation of China (NSFC) [61435009, 61377099, 61307060, 61627815]
  2. Opened Key-Subject Construction Fund of Zhejiang Province, China [xkxl1508, xkxl1318]
  3. Program for New Century Excellent Talents in University (NCET) of Ministry of Education of China [NCET-10-0976]
  4. 151 Talents in Zhejiang Province, China
  5. K. C. Wong Magna Fund of Ningbo University, China

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We have experimentally demonstrated midinfrared (MIR) supercontinuum (SC) generation in a low-loss Te-based chalcogenide (ChG) step-index fiber. The fiber, fabricated by an isolated extrusion method, has an optical loss of 2-3 dB/m at 6.2-10.3 mu m and 3.2 dB/m at 10.6 mu m, the lowest value reported for any Te-based ChG step-index fiber. A MIR SC spectrum (similar to 1.5 to 14 mu m) is generated from the 23-cm fiber pumped by a 4.5 mu m laser (similar to 150 fs, 1 kHz). To the best of our knowledge, this is the first SC experimental demonstration in Te-based ChG fiber and the broadest MIRSC generation pumped in the normal dispersion regime in the optical fibers. (C) 2016 Optical Society of America

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