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Optics Letters

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  • Vol. 27, Iss. 12 — Jun. 15, 2002
  • pp: 1004–1006

Polarization control method for ultraviolet writing of advanced Bragg gratings

Jesper Bo Jensen, Nikolai Plougmann, Hans-Jürgen Deyerl, Poul Varming, Jörg Hübner, and Martin Kristensen  »View Author Affiliations


Optics Letters, Vol. 27, Issue 12, pp. 1004-1006 (2002)
http://dx.doi.org/10.1364/OL.27.001004


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Abstract

We present a flexible and simple method for UV writing of Bragg gratings with advanced apodization profiles including discrete phase shifts. The method is based on a p phase shift between the refractive-index modulation profiles induced by s and p polarization of UV light. By changing the ratio of UV intensity in the two polarizations we are able to control the modulation strength and to induce phase shifts while keeping a constant effective refractive index throughout the Bragg grating. We demonstrate strong UV-written Bragg gratings with Gaussian or sinc apodizations with spectral shapes, in good agreement with theoretical predictions.

© 2002 Optical Society of America

OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(050.5080) Diffraction and gratings : Phase shift
(220.1230) Optical design and fabrication : Apodization
(230.1480) Optical devices : Bragg reflectors

Citation
Jesper Bo Jensen, Nikolai Plougmann, Hans-Jürgen Deyerl, Poul Varming, Jörg Hübner, and Martin Kristensen, "Polarization control method for ultraviolet writing of advanced Bragg gratings," Opt. Lett. 27, 1004-1006 (2002)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-27-12-1004


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References

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  3. P. Varming, J. B. Jensen, N. Plougmann, M. Kristensen, and J. Hübner, in Bragg Gratings, Photosensitivity, and Poling in Glass Waveguides, Vol. 61 of OSA Trends in Optics and Photonics (Optical Society of America, Washington, D.C., 2001), paper BWA5–1.
  4. M. Kristensen, Phys. Rev. B 64, 144201 (2001).
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