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1. High Brightness 2.2-12 μm Mid-Infrared Supercontinuum Generation in a Nontoxic Chalcogenide Step-Index Fiber.

Author

Zhang, Bin, Yu, Yi, Zhai, Chengcheng, Qi, Sisheng, Wang, Yuwei, Yang, Anping, Gai, Xin, Wang, Rongping, Yang, Zhiyong, Luther‐Davies, Barry, and Xu, Y.

Subjects
SUPERCONTINUUM generation, CHALCOGENIDE glass, RADIANCE, GLASS fibers, METAL cladding, GERMANIUM compounds
Abstract

An environment friendly nonlinear chalcogenide glass fiber with a Ge-Sb-Se core and a Ge-Se cladding is fabricated for bright broadband mid-infrared ( MIR) supercontinuum ( SC) generation. The fabricated Ge-Sb-Se/Ge-Se fiber with a core diameter of 6 μm shows zero group velocity dispersion at ~4.2 μm and ~7.3 μm. By pumping the fiber with a length of 11 cm at 4.485 μm with 330 fs pulses, we achieve a SC covering the 2.2-12 μm spectral range and with an output average power of ~17 mW. This bright broadband SC source is promising for high-resolution MIR spectroscopy. [ABSTRACT FROM AUTHOR]

Published
2016
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