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Optimizations for the uniformity of the non-volatile volume grating in doubly doped LiNbO3 crystals
- Source :
-
Optics Communications . Apr2005, Vol. 248 Issue 1-3, p27-33. 7p. - Publication Year :
- 2005
-
Abstract
- Abstract: The formation of the non-uniformity of the non-volatile volume grating in doubly doped LiNbO3 crystals is studied in detail. We find that the non-uniformity of the grating is mainly caused by strong ultraviolet light absorption, and the average saturation space-charge field is small and the diffraction efficiency is low as a result of the non-uniformity of the grating. In order to optimize the uniformity of the grating, we propose the recording scheme by using two sensitizing beams simultaneously from the two opposite sides of the crystals. Theoretical simulations and experimental verifications are performed. Results show that the well uniformed grating with high diffraction efficiency can be obtained by using this optimization scheme. [Copyright &y& Elsevier]
- Subjects :
- *CRYSTALS
*NONLINEAR optics
*OPTICAL materials
*OPTICS
Subjects
Details
- Language :
- English
- ISSN :
- 00304018
- Volume :
- 248
- Issue :
- 1-3
- Database :
- Academic Search Index
- Journal :
- Optics Communications
- Publication Type :
- Academic Journal
- Accession number :
- 17613875
- Full Text :
- https://doi.org/10.1016/j.optcom.2004.11.084