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Electrooptic Bragg Deflection Modulator for UV Laser Light Using Periodically Poled MgO:s-LiTaO _{3}

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5 Author(s)
Okazaki, M. ; R&D Center, Dainippon Screen Manuf. Co., Ltd., Kyoto, Japan ; Chichibu, T. ; Yoshimoto, S. ; Inoue, T.
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We propose and demonstrate an electrooptic Bragg deflection optical modulator using a periodically poled MgO:s- LiTaO3 thin crystal for ultraviolet (UV) laser light. This modulator is a building block for implementation of a one-dimensional spatial light modulator, and can be driven by voltage lower than the conventional bulk-type device. The device was constructed by bonding a thin periodically poled MgO:SLT and a robust support plate with gold layers in-between. A thin crystal structure with good surface flatness was obtained. Good performances, which include a diffraction efficiency as high as 97.8% and a high extinction ratio, were accomplished at 355-nm wavelength.

Published in:

Photonics Technology Letters, IEEE  (Volume:23 ,  Issue: 22 )

Date of Publication:

Nov.15, 2011

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