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Low Loss, High NA Chalcogenide Glass Fibers for Broadband Mid‐Infrared Supercontinuum Generation
Author(s) -
Zhang Bin,
Guo Wei,
Yu Yi,
Zhai Chengcheng,
Qi Sisheng,
Yang Anping,
Li Lei,
Yang Zhiyong,
Wang Rongping,
Tang Dingyuan,
Tao Guangming,
LutherDavies Barry
Publication year - 2015
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/jace.13574
Subject(s) - supercontinuum , chalcogenide , materials science , chalcogenide glass , numerical aperture , optics , core (optical fiber) , fiber , infrared , optoelectronics , photonic crystal fiber , wavelength , composite material , physics
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.