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Optical Materials Express

Optical Materials Express

  • Editor: David J. Hagan
  • Vol. 1, Iss. 5 — Sep. 1, 2011
  • pp: 845–855

Femtosecond laser writing of waveguides in zinc phosphate glasses [Invited]

Luke B. Fletcher, Jonathan J. Witcher, Neil Troy, Signo T. Reis, Richard K. Brow, Rebeca Martinez Vazquez, Roberto Osellame, and Denise M. Krol  »View Author Affiliations


Optical Materials Express, Vol. 1, Issue 5, pp. 845-855 (2011)
http://dx.doi.org/10.1364/OME.1.000845


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Abstract

We have studied the relationship between the initial glass composition and the structural changes associated with laser-induced refractive index modification in a series of Er-Yb doped and undoped zinc phosphate glasses. White light microscopy and waveguide experiments are used together with Raman and fluorescence spectroscopy to characterize the structural changes. The correlation between Raman peak shifts and fluorescence from phosphorus–oxygen hole center (POHC) defects indicates that fs-laser writing results in a depolymerization of the phosphate glass network. The results also show that the exact glass composition should be taken into account when fabricating waveguide devices in phosphate glasses, in order to both expand the fs-laser processing conditions and maximize favorable morphological changes for 3-D photonic devices.

© 2011 OSA

OCIS Codes
(160.2750) Materials : Glass and other amorphous materials
(220.4000) Optical design and fabrication : Microstructure fabrication
(230.7370) Optical devices : Waveguides
(320.2250) Ultrafast optics : Femtosecond phenomena

ToC Category:
Laser Materials Processing

History
Original Manuscript: July 8, 2011
Revised Manuscript: July 31, 2011
Manuscript Accepted: August 1, 2011
Published: August 3, 2011

Virtual Issues
Femtosecond Direct Laser Writing and Structuring of Materials (2011) Optical Materials Express

Citation
Luke B. Fletcher, Jonathan J. Witcher, Neil Troy, Signo T. Reis, Richard K. Brow, Rebeca Martinez Vazquez, Roberto Osellame, and Denise M. Krol, "Femtosecond laser writing of waveguides in zinc phosphate glasses [Invited]," Opt. Mater. Express 1, 845-855 (2011)
http://www.opticsinfobase.org/ome/abstract.cfm?URI=ome-1-5-845


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