Simultaneous spatial and temporal focusing of femtosecond laser pulses for directly writing optical waveguides in Pr3+ doped ZBLAN glass

Yusuke Yamanaka, Kenichi Hirosawa, Fumihiko Kannari

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    Characteristics of clad-drawn optical waveguides in a Pr3+ doped ZrF4-BaF2-LaF3-AlF3-NaF (ZBLAN) glass using simultaneous spatial and temporal focusing (SSTF) of femtosecond laser pulses are described. Thanks to the SSTF, the axial two-photon excitation length is confined to ∼20 μm. At a laser repetition rate of 1 kHz, chirped longer laser pulses always induce larger refractive index changes than those by a 40-fs laser pulse. An optical waveguide exhibiting an NA of ∼0.04 is fabricated.

    Original languageEnglish
    Title of host publicationUltrafast Phenomena XIX - Proceedings of the 19th International Conference
    EditorsKaoru Yamanouchi, Steven Cundiff, Regina de Vivie-Riedle, Makoto Kuwata-Gonokami, Louis DiMauro
    PublisherSpringer Science and Business Media, LLC
    Pages821-824
    Number of pages4
    ISBN (Electronic)9783319132419
    DOIs
    Publication statusPublished - 2015 Jan 1
    Event19th International Conference on Ultrafast Phenomena, 2014 - Okinawa, Japan
    Duration: 2014 Jul 72014 Jul 11

    Publication series

    NameSpringer Proceedings in Physics
    Volume162
    ISSN (Print)0930-8989
    ISSN (Electronic)1867-4941

    Other

    Other19th International Conference on Ultrafast Phenomena, 2014
    CountryJapan
    CityOkinawa
    Period14/7/714/7/11

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

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  • Cite this

    Yamanaka, Y., Hirosawa, K., & Kannari, F. (2015). Simultaneous spatial and temporal focusing of femtosecond laser pulses for directly writing optical waveguides in Pr3+ doped ZBLAN glass. In K. Yamanouchi, S. Cundiff, R. de Vivie-Riedle, M. Kuwata-Gonokami, & L. DiMauro (Eds.), Ultrafast Phenomena XIX - Proceedings of the 19th International Conference (pp. 821-824). (Springer Proceedings in Physics; Vol. 162). Springer Science and Business Media, LLC. https://doi.org/10.1007/978-3-319-13242-6_201