Simultaneous spatial and temporal focusing of femtosecond laser pulses for directly writing optical waveguides in Pr<sup>3+</sup> 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 Pr<sup>3+</sup> doped ZrF<inf>4</inf>-BaF<inf>2</inf>-LaF<inf>3</inf>-AlF<inf>3</inf>-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 publicationSpringer Proceedings in Physics
PublisherSpringer Science and Business Media, LLC
Pages821-824
Number of pages4
Volume162
ISBN (Print)9783319132419
DOIs
Publication statusPublished - 2015
Event19th International Conference on Ultrafast Phenomena, 2014 - Okinawa, Japan
Duration: 2014 Jul 72014 Jul 11

Other

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

Fingerprint

optical waveguides
glass
pulses
lasers
repetition
refractivity
photons
excitation

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Yamanaka, Y., Hirosawa, K., & Kannari, F. (2015). Simultaneous spatial and temporal focusing of femtosecond laser pulses for directly writing optical waveguides in Pr<sup>3+</sup> doped ZBLAN glass. In Springer Proceedings in Physics (Vol. 162, pp. 821-824). Springer Science and Business Media, LLC. https://doi.org/10.1007/978-3-319-13242-6_201

Simultaneous spatial and temporal focusing of femtosecond laser pulses for directly writing optical waveguides in Pr<sup>3+</sup> doped ZBLAN glass. / Yamanaka, Yusuke; Hirosawa, Kenichi; Kannari, Fumihiko.

Springer Proceedings in Physics. Vol. 162 Springer Science and Business Media, LLC, 2015. p. 821-824.

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

Yamanaka, Y, Hirosawa, K & Kannari, F 2015, Simultaneous spatial and temporal focusing of femtosecond laser pulses for directly writing optical waveguides in Pr<sup>3+</sup> doped ZBLAN glass. in Springer Proceedings in Physics. vol. 162, Springer Science and Business Media, LLC, pp. 821-824, 19th International Conference on Ultrafast Phenomena, 2014, Okinawa, Japan, 14/7/7. https://doi.org/10.1007/978-3-319-13242-6_201
Yamanaka, Yusuke ; Hirosawa, Kenichi ; Kannari, Fumihiko. / Simultaneous spatial and temporal focusing of femtosecond laser pulses for directly writing optical waveguides in Pr<sup>3+</sup> doped ZBLAN glass. Springer Proceedings in Physics. Vol. 162 Springer Science and Business Media, LLC, 2015. pp. 821-824
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