Characterization and fabrication of rare-earth doped amplifying fibers based on atomic layer deposition

Xiaolan Sun*, Yanhua Dong, Yan-Chao Li, Xiaohong Liu, Shuo Li

*Corresponding author for this work

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review


    Nano-Rare Earth Doped Fibers (NREDFs) have shown great application for optical fiber amplifiers, fiber lasers and sensors. The rapid development of fiber communication systems has a higher requirement on the NREDFs. Atomic layer deposition (ALD) is a chemical vapor deposition technique based on the sequential use of self-terminating gas-solid reactions. As a film deposition technique, ALD is known for its effective material utilization at low temperatures, accuracy thickness control, excellent step coverage, good uniformity and adhesion, good conformability. In this paper, ALD was used to fabricate high concentration alumina-erbium co-doped amplifying fibers. Based on Modified Chemical Vapor Deposition (MCVD) and ALD, using nanomaterials as a dopant, the alumina-erbium co-doped amplifying fibers were fabricated. The main advantages of this novel method include good uniformity, high dispersibility, and high doping concentration. Scanning electron microscopy (SEM), transmission electron microscopy (TEM) images and X-ray energy dispersive spectroscopy (EDS) showed the physical and chemical features of the deposited film upon a porous silica soot layer. Photoluminescence (PL) and absorption spectra were used to characterize the optical properties. The fibers have high gain, low noise, high power and are independent of polarization, which make them desirable for fiber devices.

    Original languageEnglish
    Title of host publicationOptoelectronic Devices and Integration III
    Publication statusPublished - 2010
    MoE publication typeA4 Conference publication
    EventOptoelectronic Devices and Integration - Beijing, China
    Duration: 18 Oct 201020 Oct 2010
    Conference number: 3

    Publication series

    NameProceedings of SPIE
    ISSN (Print)0277-786X


    ConferenceOptoelectronic Devices and Integration


    • alumina-erbium co-doped
    • Atomic layer deposition
    • EDFA
    • Nanoparticles
    • optical fiber preform


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