Open AccessGraded Index Chalcogenide Fibers with Nanostructured Core
Author(s) -
Meneghetti Marcello,
Forestier Xavier,
Petersen Christian R.,
Kasztelanic Rafal,
Klimczak Mariusz,
Bang Ole,
Buczyński Ryszard,
Troles Johann
Publication year - 2021
Publication title -
advanced photonics research
Language(s) - English
Resource type - Journals
ISSN - 2699-9293
DOI - 10.1002/adpr.202000091
Subject(s) - chalcogenide , materials science , chalcogenide glass , supercontinuum , fabrication , femtosecond , refractive index , annealing (glass) , optoelectronics , stacking , optical parametric oscillator , chemical vapor deposition , optical fiber , core (optical fiber) , optics , wavelength , laser , photonic crystal fiber , composite material , medicine , alternative medicine , physics , pathology , nuclear magnetic resonance
Fabrication of graded index (GRIN) fibers is for a long time limited to ion‐exchange, modified chemical vapour deposition (MCVD) or other deposition techniques. Recently, the nanostructuring of an all‐solid core in fibers has proven to be a versatile and low cost alternative for the production of gradient index optical fibers. Herein, high purity chalcogenide glasses in the Ge‐As‐Se glass system, synthesized in‐house, are used for stacking and drawing chalcogenide nanostructured GRIN fibers designed using the Maxwell‐Garnett effective medium theory, simulated annealing and genetic algorithms. The successful generation of a supercontinuum spanning the mid‐infrared from 3 to 6 μm, pumping at a central wavelength of 4 μm using an Optical Parametric Oscillator with femtoseconds pulses, is also reported.