Open AccessHigh power single-mode delivery of mid-infrared sources through chalcogenide fiber
Author(s) -
Alex Sincore,
Justin Cook,
Felix Tan,
Ahmed El Halawany,
Anthony Riggins,
Sean A. McDaniel,
Gary Cook,
Dmitry Martyshkin,
Vladimir V. Fedorov,
Sergey Mirov,
Lawrence Shah,
Ayman F. Abouraddy,
Martin Richardson,
Kenneth L. Schepler
Publication year - 2018
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.26.007313
Subject(s) - materials science , chalcogenide , optics , optoelectronics , reflection (computer programming) , fiber , fiber laser , optical fiber , single mode optical fiber , infrared , laser , chalcogenide glass , core (optical fiber) , composite material , physics , computer science , programming language
Mechanically robust and low loss single-mode arsenic sulfide fibers are used to deliver high power mid-infrared sources. Anti-reflection coatings were deposited on the fiber facets, enabling 90% transmission through 20 cm length fibers. 10.3 W was transmitted through an anti-reflection coated fiber at 2053 nm, and uncoated fibers sustained 12 MW/cm 2 intensities on the facet without failure. A Cr:ZnSe laser transmitted >1 W at 2520 nm, and a Fe:ZnSe laser transmitted 0.5 W at 4102 nm. These results indicate that by improving the anti-reflection coatings and using a high beam quality mid-infrared source, chalcogenide fibers can reliably deliver ≥10 W in a single mode, potentially out to 6.5 µm.