Chalcogenide glass fibers with a rectangular core for polarized mid-infrared supercontinuum generation

He Ren, Yi Yu, Chengcheng Zhai, Bin Zhang, Anping Yang, Kangzhen Tian, Xian Feng, Zhiyong Yang*, Pengfei Wang, Barry Luther-Davies

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    10 Citations (Scopus)

    Abstract

    A step-index chalcogenide fiber with a rectangular core and a circular cladding was fabricated through an approach that combines an extrusion technique and a multiple-stage rod-in-tube method. This fiber has a Ge12As24Se64 glass core with a size of ~2.8 μm × 5.9 μm, and a Ge10As24S66 glass cladding with a diameter of ~220 μm, and shows a relatively large birefringence. When ~10 cm long fiber was pumped at 4.0 μm with 330 fs pulses, ~2.2–9.5 μm supercontinuum with a flatness of 20 dB and a polarization extinction ratio of ~10 dB was generated.

    Original languageEnglish
    Pages (from-to)57-60
    Number of pages4
    JournalJournal of Non-Crystalline Solids
    Volume517
    DOIs
    Publication statusPublished - 1 Aug 2019

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