Qinxing Li

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Optical phase conjugation in undoped and doped KNSBN

Conference on Lasers and Electro-Optics (1989)

Rong Zhu Wenji Peng Weilong She Qinxing Li Zhenxin Yu

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Temporal responses of optical phase conjugation in the undoped KNSBN crystal

Conference on Lasers and Electro-Optics (1989)

Wenji Peng Rong Zhu Weilong She Qinxing Li Zhenxin Yu

Recently it was found that photorefractive materials are some of the most sensitive materials for performing optical phase conjugation and digital optical computing1 by using only a few milliwatts of continuous laser power.1 The photorefractive crystal KNSBN [(K0.5Na0.5)0.4(Sr0.61Ba0.39)0.8(Nb6O2],2 compared to BaTiO3,1 has the same or higher optical sensitivity and can be grown more easily to produce doped and undoped crystals of adequate size and optical quality for numerous applications. We report the experimental results on the temporal responses of the optical phase conjugation and the natural decay time of the phase grating of the photorefractive crystal KNSBN. These may play important roles in digital optical computing and optical message storage, respectively.

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Phase conjugation

Optical storage

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Four Wave Mixing In Doped And Un-doped KNSBN Crystals

Digest on Nonlinear Optics: Materials, Phenomena and Devices (1990)

Wenji Peng Rong Zhu Weilong She Qinxing Li Yu Zheuxin

Recently it has been found the photorefractive materials are some of the most sensitive materials for performing four-wave mixing and all kinds of the digital optical computing by using only a few milliwatt continuous laser beam. The photorefractive crystal KNSBN [(K _0.5 Na _0.5 )0.4 (Sr _0.61 Ba _0.39 ) _0.8 Nb ₆ O ₂ ], comparing with BaTiO ₅ , has the same or higher optical sensitivity and can be much more easily grown to produce doped and un-doped crystals of adequate size and optical quality for numerous applications. In this paper, we report the experimental results on the temporal responses and the reflectivity of the optical phase conjugation in the photorefractive crystal KNSBN.

10.1109/nlo.1990.695939

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