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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 20 — Sep. 26, 2011
  • pp: 19542–19550

Femtosecond laser direct-writing of waveguide Bragg gratings in a quasi cumulative heating regime

Christopher Miese, Michael J. Withford, and Alexander Fuerbach  »View Author Affiliations

Optics Express, Vol. 19, Issue 20, pp. 19542-19550 (2011)

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Waveguide Bragg gratings (WBGs) were directly inscribed into Alkaline Earth Boro-Aluminosilicate glass samples in a single process step at high fabrication speeds. We utilized a 5.1 MHz femtosecond oscillator to exploit high repetition rate heat accumulation effects. The pulse energy was modulated using a Pockels cell in order to fabricate waveguides that contain a periodic array of nano-structures inside their core. We have demonstrated, for the first time, that the transient build-up of heat accumulation within the sample can lead to the formation of a permanent nano-void. This effect can be exploited to fabricate WBGs at high speeds.

© 2011 OSA

OCIS Codes
(130.3120) Integrated optics : Integrated optics devices
(230.1480) Optical devices : Bragg reflectors

ToC Category:
Integrated Optics

Original Manuscript: July 19, 2011
Revised Manuscript: September 8, 2011
Manuscript Accepted: September 8, 2011
Published: September 22, 2011

Christopher Miese, Michael J. Withford, and Alexander Fuerbach, "Femtosecond laser direct-writing of waveguide Bragg gratings in a quasi cumulative heating regime," Opt. Express 19, 19542-19550 (2011)

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