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4 January 2008 Angle amplifier based on multiplexed volume holographic gratings
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Abstract
Angle amplifier of laser beam scanner is a widely used device in optical systems. Volume holographic optical elements can be applied in the angle amplifier. Compared with the traditional angle amplifier, it has the advantages of high angle resolution, high diffraction efficiency, small size, and high angle magnification and flexible design. Bragg anglewavelength- compensating recording method is introduced. Because of the Bragg compensatory relation between angle and wavelength, this device could be recorded at another wavelength. The design of the angle amplifier recording at the wavelength of 514.2nm for the working wavelength of 632.8nm is described. An optical setup for recording the angle amplifier device is designed and discussed. Experimental results in the photorefractive crystal Fe:LiNbO3 demonstrate the feasibility of the angle amplifier scheme.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Liangcai Cao, Yifei Zhao, Qingsheng He, and Guofan Jin "Angle amplifier based on multiplexed volume holographic gratings", Proc. SPIE 6832, Holography and Diffractive Optics III, 683216 (4 January 2008); https://doi.org/10.1117/12.760261
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