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
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
Country/TerritoryJapan
CityOkinawa
Period14/7/714/7/11

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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