Graded Index Chalcogenide Fibers with Nanostructured Core

Marcello Meneghetti, Xavier Forestier, Christian Rosenberg Petersen, Rafał Kasztelanic, Mariusz Klimczak, Ole Bang, Ryszard Buczyński, Johann Troles*

*Corresponding author for this work

    Research output: Contribution to journalJournal articleResearchpeer-review

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    Abstract

    Fabrication of graded index (GRIN) fibers was 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. In this work, high purity chalcogenide glasses in the Ge‐As‐Se glass system, synthesized in‐house, were 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 µm to 6 µm, pumping at a central wavelength of 4 µm using an Optical Parametric Oscillator with femtoseconds pulses, is also reported.

    Original languageEnglish
    Article number2000091
    JournalAdvanced Photonics Research
    Volume2
    Issue number3
    Number of pages13
    ISSN2699-9293
    DOIs
    Publication statusPublished - 2021

    Keywords

    • Chalcogenide glasses
    • Graded index fibers
    • Infrared optics
    • Supercontinuum

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