The holographic characteristics of water-resisting red-sensitive photopolymer holographic recording material was improved by using compound sensitizer, compound initiator and compound monomer. After improvement, energetic sensitivity of 0.02cm2/mJ and high diffraction efficiency of 83% were obtained. And the refractive index modulation is as high as 410-3, which implies that the photopolymer has the potential ability of high density holographic storage. Therefore, it is a kind of better holographic recording material. The new style holographic grating fabricated with the material has many merits: low loss, narrow channel width, high diffraction efficiency. According to the experiment results and theoretical analysis, this grating is suitable for wavelength division demultiplexer and other optical elements.
Key words
holographic grating /
wavelength division demultiplexer /
photopolymer /
water-resisting material
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Footnotes
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