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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: G. I. Stegeman
  • Vol. 23, Iss. 12 — Dec. 1, 2006
  • pp: 2470–2478

Photosensitivity and volume gratings in phosphate glasses for rare-earth-doped ion-exchanged optical waveguide lasers

Sanna Yliniemi, Seppo Honkanen, Anatoli Ianoul, Albane Laronche, and Jacques Albert  »View Author Affiliations


JOSA B, Vol. 23, Issue 12, pp. 2470-2478 (2006)
http://dx.doi.org/10.1364/JOSAB.23.002470


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Abstract

Phosphate glasses containing enough sodium to allow the fabrication of optical channel waveguides by ion exchange are photosensitive to intense ultraviolet irradiation from excimer lasers at 193 and 248 nm . Permanent submicrometer-period volume index gratings with modulation amplitudes larger than 10 4 were obtained even after annealing the irradiated samples for 2 h at 230 ° C . Ultraviolet–visible absorption changes were measured in the irradiated areas, as well as structural modifications observed by surface profiling. Comparative studies were carried out for glasses that were also codoped with erbium and ytterbium to provide high gain at wavelengths near 1.5 μ m . Finally, we demonstrate narrowband gratings with reflectivities larger than 80% in silver ion-exchanged channel waveguides made in these phosphate glass substrates.

© 2006 Optical Society of America

OCIS Codes
(050.7330) Diffraction and gratings : Volume gratings
(130.2790) Integrated optics : Guided waves

ToC Category:
Diffraction and Gratings

History
Original Manuscript: May 12, 2006
Revised Manuscript: August 7, 2006
Manuscript Accepted: August 29, 2006

Citation
Sanna Yliniemi, Seppo Honkanen, Anatoli Ianoul, Albane Laronche, and Jacques Albert, "Photosensitivity and volume gratings in phosphate glasses for rare-earth-doped ion-exchanged optical waveguide lasers," J. Opt. Soc. Am. B 23, 2470-2478 (2006)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-23-12-2470

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