The effective size of the grating region in Pr<sup>3+</sup>-doped silicate glass was found to be smaller than the write-beams size. This was confirmed by the X-scan technique. FWM and X-scan result produced consistent ?n values.
© 2010 The Optical Society
(050.0050) Diffraction and gratings : Diffraction and gratings
(050.7330) Diffraction and gratings : Volume gratings
(160.0160) Materials : Materials
(160.2750) Materials : Glass and other amorphous materials
A. Y. Hamad, E. Woody, and S. Kim, "New Insights into Volume Grating Formed in Pr<sup>3+</sup>-Doped Silicate Glasses Using FWM and X-Scan Techniques," in Advanced Photonics & Renewable Energy, OSA Technical Digest (CD) (Optical Society of America, 2010), paper BMB3.
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