Optimal recording wavelength for maximum diffraction efficiency of thermal fixing in LiNbO3:Fe

Peipei Hou; Ya'nan Zhi; Jianfeng Sun; Liren Liu

doi:10.1364/AO.50.001554

Optimal recording wavelength for maximum diffraction efficiency of thermal fixing in LiNbO3:Fe

Appl Opt. 2011 Apr 10;50(11):1554-9. doi: 10.1364/AO.50.001554.

Authors

Peipei Hou¹, Ya'nan Zhi, Jianfeng Sun, Liren Liu

Affiliation

¹ Key Laboratory of Space Laser Communication and Testing Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China. houpeipei@siom.ac.cn

PMID: 21478928
DOI: 10.1364/AO.50.001554

Abstract

Optimal recording wavelength for maximum diffraction efficiency of thermal fixing in LiNbO(3):Fe crystal is investigated. Holographic gratings are recorded using three typical recording wavelengths including 488, 514, and 633 nm. Optimal switching from recording to thermal fixing is taken into consideration. The fixed holograms are developed by an original recording setup. Diffraction efficiencies of recording and thermal fixing are measured by a two-wave coupling technique. The theoretical and experimental results are analyzed and compared. With a blue beam, the nonvolatile hologram with maximum fixing efficiency is achieved. This work can obtain high persistent diffraction of the nonvolatile holographic storage in LiNbO(3):Fe crystals.